-- ====================================================================================================================================== -- README: -- For details, see "postgres_fdw.sql". -- ====================================================================================================================================== create database postgresfdw_test_db_partition; \c postgresfdw_test_db_partition set show_fdw_remote_plan = on; -- ====================================================================================================================================== -- TEST-MODULE: create FDW objects -- -------------------------------------- -- ====================================================================================================================================== CREATE EXTENSION postgres_fdw; CREATE SERVER testserver1 FOREIGN DATA WRAPPER postgres_fdw; DO $d$ BEGIN EXECUTE $$CREATE SERVER loopback FOREIGN DATA WRAPPER postgres_fdw OPTIONS (dbname '$$||current_database()||$$', port '$$||current_setting('port')||$$' )$$; EXECUTE $$CREATE SERVER loopback2 FOREIGN DATA WRAPPER postgres_fdw OPTIONS (dbname '$$||current_database()||$$', port '$$||current_setting('port')||$$' )$$; EXECUTE $$CREATE SERVER loopback3 FOREIGN DATA WRAPPER postgres_fdw OPTIONS (dbname '$$||current_database()||$$', port '$$||current_setting('port')||$$' )$$; END; $d$; CREATE USER MAPPING FOR public SERVER testserver1 OPTIONS (user 'value', password 'value'); CREATE USER MAPPING FOR CURRENT_USER SERVER loopback; CREATE USER MAPPING FOR CURRENT_USER SERVER loopback2; CREATE USER MAPPING FOR public SERVER loopback3; -- ====================================================================================================================================== -- TEST-MODULE: create objects used through FDW loopback server -- -------------------------------------- -- ====================================================================================================================================== CREATE TYPE user_enum AS ENUM ('foo', 'bar', 'buz'); CREATE SCHEMA "S 1"; CREATE TABLE "S 1"."T 1" ( "C 1" int NOT NULL, c2 int NOT NULL, c3 text, c4 timestamptz, c5 timestamp, c6 varchar(10), c7 char(10), c8 user_enum, CONSTRAINT t1_pkey PRIMARY KEY ("C 1") ) PARTITION BY RANGE ("C 1") ( partition ptb1 values less than(500), partition ptb2 values less than(maxvalue) ); NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index "t1_pkey" for table "T 1" CREATE TABLE "S 1"."T 2" ( c1 int NOT NULL, c2 text, CONSTRAINT t2_pkey PRIMARY KEY (c1) ) with (orientation=column) PARTITION BY RANGE (c1) ( partition ptb1 values less than(50), partition ptb2 values less than(maxvalue) ); NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index "t2_pkey" for table "T 2" CREATE TABLE "S 1"."T 3" ( c1 int NOT NULL, c2 int NOT NULL, c3 text, CONSTRAINT t3_pkey PRIMARY KEY (c1) ) PARTITION BY hash (c1) ( partition ptb1, partition ptb2 ); NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index "t3_pkey" for table "T 3" CREATE TABLE "S 1"."T 4" ( c1 int NOT NULL, c2 int NOT NULL, c3 text, CONSTRAINT t4_pkey PRIMARY KEY (c1) ) PARTITION BY RANGE (c1) SUBPARTITION BY HASH (c2) ( partition ptb1 values less than(50) ( subpartition ptb11, subpartition ptb12 ), partition ptb2 values less than(maxvalue) ( subpartition ptb21, subpartition ptb22 ) ); NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index "t4_pkey" for table "T 4" -- Disable autovacuum for these tables to avoid unexpected effects of that ALTER TABLE "S 1"."T 1" SET (autovacuum_enabled = 'false'); ALTER TABLE "S 1"."T 2" SET (autovacuum_enabled = 'false'); ALTER TABLE "S 1"."T 3" SET (autovacuum_enabled = 'false'); ALTER TABLE "S 1"."T 4" SET (autovacuum_enabled = 'false'); INSERT INTO "S 1"."T 1" SELECT id, id % 10, to_char(id, 'FM00000'), '1970-01-01'::timestamptz + ((id % 100) || ' days')::interval, '1970-01-01'::timestamp + ((id % 100) || ' days')::interval, id % 10, id % 10, 'foo'::user_enum FROM generate_series(1, 1000) id; INSERT INTO "S 1"."T 2" SELECT id, 'AAA' || to_char(id, 'FM000') FROM generate_series(1, 100) id; INSERT INTO "S 1"."T 3" SELECT id, id + 1, 'AAA' || to_char(id, 'FM000') FROM generate_series(1, 100) id; DELETE FROM "S 1"."T 3" WHERE c1 % 2 != 0; -- delete for outer join tests INSERT INTO "S 1"."T 4" SELECT id, id + 1, 'AAA' || to_char(id, 'FM000') FROM generate_series(1, 100) id; DELETE FROM "S 1"."T 4" WHERE c1 % 3 != 0; -- delete for outer join tests ANALYZE "S 1"."T 1"; ANALYZE "S 1"."T 2"; ANALYZE "S 1"."T 3"; ANALYZE "S 1"."T 4"; -- ====================================================================================================================================== -- TEST-MODULE: create foreign tables -- -------------------------------------- -- -- ====================================================================================================================================== CREATE FOREIGN TABLE ft1 ( c0 int, c1 int NOT NULL, c2 int NOT NULL, c3 text, c4 timestamptz, c5 timestamp, c6 varchar(10), c7 char(10) default 'ft1', c8 user_enum ) SERVER loopback; ALTER FOREIGN TABLE ft1 DROP COLUMN c0; CREATE FOREIGN TABLE ft2 ( c1 int NOT NULL, c2 int NOT NULL, cx int, c3 text, c4 timestamptz, c5 timestamp, c6 varchar(10), c7 char(10) default 'ft2', c8 user_enum ) SERVER loopback; ALTER FOREIGN TABLE ft2 DROP COLUMN cx; CREATE FOREIGN TABLE ft4 ( c1 int NOT NULL, c2 int NOT NULL, c3 text ) SERVER loopback OPTIONS (schema_name 'S 1', table_name 'T 3'); CREATE FOREIGN TABLE ft5 ( c1 int NOT NULL, c2 int NOT NULL, c3 text ) SERVER loopback OPTIONS (schema_name 'S 1', table_name 'T 4'); CREATE FOREIGN TABLE ft6 ( c1 int NOT NULL, c2 int NOT NULL, c3 text ) SERVER loopback2 OPTIONS (schema_name 'S 1', table_name 'T 4'); CREATE FOREIGN TABLE ft7 ( c1 int NOT NULL, c2 int NOT NULL, c3 text ) SERVER loopback3 OPTIONS (schema_name 'S 1', table_name 'T 4'); -- ====================================================================================================================================== -- TEST-MODULE: tests for validator and prepare params -- -------------------------------------- -- ====================================================================================================================================== -- requiressl and some other parameters are omitted because -- valid values for them depend on configure options ALTER SERVER testserver1 OPTIONS ( use_remote_estimate 'false', updatable 'true', fdw_startup_cost '123.456', fdw_tuple_cost '0.123', service 'value', connect_timeout 'value', dbname 'value', host 'value', hostaddr 'value', port 'value', application_name 'value', keepalives 'value', keepalives_idle 'value', keepalives_interval 'value', sslcompression 'value', sslmode 'value', sslcert 'value', sslkey 'value', sslrootcert 'value', sslcrl 'value', krbsrvname 'value' ); ALTER FOREIGN TABLE ft1 OPTIONS (schema_name 'S 1', table_name 'T 1'); ALTER FOREIGN TABLE ft2 OPTIONS (schema_name 'S 1', table_name 'T 1'); ALTER FOREIGN TABLE ft1 ALTER COLUMN c1 OPTIONS (column_name 'C 1'); ALTER FOREIGN TABLE ft2 ALTER COLUMN c1 OPTIONS (column_name 'C 1'); \det+ List of foreign tables Schema | Table | Server | FDW Options | Description --------+-------+-----------+---------------------------------------+------------- public | ft1 | loopback | (schema_name 'S 1', table_name 'T 1') | public | ft2 | loopback | (schema_name 'S 1', table_name 'T 1') | public | ft4 | loopback | (schema_name 'S 1', table_name 'T 3') | public | ft5 | loopback | (schema_name 'S 1', table_name 'T 4') | public | ft6 | loopback2 | (schema_name 'S 1', table_name 'T 4') | public | ft7 | loopback3 | (schema_name 'S 1', table_name 'T 4') | (6 rows) -- Now we should be able to run ANALYZE. -- To exercise multiple code paths, we use local stats on ft1 -- and remote-estimate mode on ft2. ANALYZE ft1; ALTER FOREIGN TABLE ft2 OPTIONS (use_remote_estimate 'true'); -- now open the guc. SHOW sql_beta_feature; sql_beta_feature ------------------ a_style_coerce (1 row) SET sql_beta_feature TO 'partition_fdw_on'; EXPLAIN (COSTS OFF) SELECT * FROM ft6; --err QUERY PLAN ------------------------------------------------------------------------------ Foreign Scan on ft6 Node ID: 1 FDW remote plans: Node 1: EXPLAIN (VERBOSE OFF, COSTS OFF) SELECT c1, c2, c3 FROM "S 1"."T 4" Partition Iterator Iterations: 2, Sub Iterations: 4 -> Partitioned Seq Scan on "T 4" Selected Partitions: 1..2 Selected Subpartitions: ALL (11 rows) SELECT * FROM ft6; c1 | c2 | c3 ----+-----+-------- 3 | 4 | AAA003 6 | 7 | AAA006 9 | 10 | AAA009 15 | 16 | AAA015 21 | 22 | AAA021 24 | 25 | AAA024 30 | 31 | AAA030 33 | 34 | AAA033 36 | 37 | AAA036 42 | 43 | AAA042 12 | 13 | AAA012 18 | 19 | AAA018 27 | 28 | AAA027 39 | 40 | AAA039 45 | 46 | AAA045 48 | 49 | AAA048 54 | 55 | AAA054 57 | 58 | AAA057 60 | 61 | AAA060 72 | 73 | AAA072 78 | 79 | AAA078 81 | 82 | AAA081 87 | 88 | AAA087 90 | 91 | AAA090 93 | 94 | AAA093 96 | 97 | AAA096 99 | 100 | AAA099 51 | 52 | AAA051 63 | 64 | AAA063 66 | 67 | AAA066 69 | 70 | AAA069 75 | 76 | AAA075 84 | 85 | AAA084 (33 rows) SHOW sql_beta_feature; sql_beta_feature ------------------ partition_fdw_on (1 row) SET sql_beta_feature TO 'partition_fdw_on'; EXPLAIN (COSTS OFF) SELECT * FROM ft6; --suc QUERY PLAN ------------------------------------------------------------------------------ Foreign Scan on ft6 Node ID: 1 FDW remote plans: Node 1: EXPLAIN (VERBOSE OFF, COSTS OFF) SELECT c1, c2, c3 FROM "S 1"."T 4" Partition Iterator Iterations: 2, Sub Iterations: 4 -> Partitioned Seq Scan on "T 4" Selected Partitions: 1..2 Selected Subpartitions: ALL (11 rows) SELECT * FROM ft6; c1 | c2 | c3 ----+-----+-------- 3 | 4 | AAA003 6 | 7 | AAA006 9 | 10 | AAA009 15 | 16 | AAA015 21 | 22 | AAA021 24 | 25 | AAA024 30 | 31 | AAA030 33 | 34 | AAA033 36 | 37 | AAA036 42 | 43 | AAA042 12 | 13 | AAA012 18 | 19 | AAA018 27 | 28 | AAA027 39 | 40 | AAA039 45 | 46 | AAA045 48 | 49 | AAA048 54 | 55 | AAA054 57 | 58 | AAA057 60 | 61 | AAA060 72 | 73 | AAA072 78 | 79 | AAA078 81 | 82 | AAA081 87 | 88 | AAA087 90 | 91 | AAA090 93 | 94 | AAA093 96 | 97 | AAA096 99 | 100 | AAA099 51 | 52 | AAA051 63 | 64 | AAA063 66 | 67 | AAA066 69 | 70 | AAA069 75 | 76 | AAA075 84 | 85 | AAA084 (33 rows) -- ====================================================================================================================================== -- TEST-MODULE: simple queries -- -------------------------------------- -- -- ====================================================================================================================================== -- single table without alias EXPLAIN (COSTS OFF) SELECT * FROM ft1 ORDER BY c3, c1 OFFSET 100 LIMIT 10; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Foreign Scan on ft1 Node ID: 1 FDW remote plans: Node 1: EXPLAIN (VERBOSE OFF, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" ORDER BY c3 ASC NULLS LAST, "C 1" ASC NULLS LAST LIMIT 10::bigint OFFSET 100::bigint Limit -> Sort Sort Key: c3, "C 1" -> Partition Iterator Iterations: 2 -> Partitioned Seq Scan on "T 1" Selected Partitions: 1..2 (13 rows) SELECT * FROM ft1 ORDER BY c3, c1 OFFSET 100 LIMIT 10; c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 -----+----+-------+------------------------------+--------------------------+----+------------+----- 101 | 1 | 00101 | Fri Jan 02 00:00:00 1970 PST | Fri Jan 02 00:00:00 1970 | 1 | 1 | foo 102 | 2 | 00102 | Sat Jan 03 00:00:00 1970 PST | Sat Jan 03 00:00:00 1970 | 2 | 2 | foo 103 | 3 | 00103 | Sun Jan 04 00:00:00 1970 PST | Sun Jan 04 00:00:00 1970 | 3 | 3 | foo 104 | 4 | 00104 | Mon Jan 05 00:00:00 1970 PST | Mon Jan 05 00:00:00 1970 | 4 | 4 | foo 105 | 5 | 00105 | Tue Jan 06 00:00:00 1970 PST | Tue Jan 06 00:00:00 1970 | 5 | 5 | foo 106 | 6 | 00106 | Wed Jan 07 00:00:00 1970 PST | Wed Jan 07 00:00:00 1970 | 6 | 6 | foo 107 | 7 | 00107 | Thu Jan 08 00:00:00 1970 PST | Thu Jan 08 00:00:00 1970 | 7 | 7 | foo 108 | 8 | 00108 | Fri Jan 09 00:00:00 1970 PST | Fri Jan 09 00:00:00 1970 | 8 | 8 | foo 109 | 9 | 00109 | Sat Jan 10 00:00:00 1970 PST | Sat Jan 10 00:00:00 1970 | 9 | 9 | foo 110 | 0 | 00110 | Sun Jan 11 00:00:00 1970 PST | Sun Jan 11 00:00:00 1970 | 0 | 0 | foo (10 rows) --nspt single table with alias - also test that tableoid sort is not pushed to remote side EXPLAIN (VERBOSE, COSTS OFF) SELECT * FROM ft1 t1 ORDER BY t1.c3, t1.c1, t1.tableoid OFFSET 100 LIMIT 10; ERROR: column t1.tableoid does not exist LINE 1: ... OFF) SELECT * FROM ft1 t1 ORDER BY t1.c3, t1.c1, t1.tableoi... ^ SELECT * FROM ft1 t1 ORDER BY t1.c3, t1.c1, t1.tableoid OFFSET 100 LIMIT 10; ERROR: column t1.tableoid does not exist LINE 1: SELECT * FROM ft1 t1 ORDER BY t1.c3, t1.c1, t1.tableoid OFFS... ^ -- whole-row reference EXPLAIN (VERBOSE, COSTS OFF) SELECT t1 FROM ft1 t1 ORDER BY t1.c3, t1.c1 OFFSET 100 LIMIT 10; QUERY PLAN ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan on public.ft1 t1 Output: t1.*, c3, c1 Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" ORDER BY c3 ASC NULLS LAST, "C 1" ASC NULLS LAST LIMIT 10::bigint OFFSET 100::bigint FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" ORDER BY c3 ASC NULLS LAST, "C 1" ASC NULLS LAST LIMIT 10::bigint OFFSET 100::bigint Limit Output: "C 1", c2, c3, c4, c5, c6, c7, c8 -> Sort Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Sort Key: "T 1".c3, "T 1"."C 1" -> Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Selected Partitions: 1..2 (19 rows) SELECT t1 FROM ft1 t1 ORDER BY t1.c3, t1.c1 OFFSET 100 LIMIT 10; t1 -------------------------------------------------------------------------------------------- (101,1,00101,"Fri Jan 02 00:00:00 1970 PST","Fri Jan 02 00:00:00 1970",1,"1 ",foo) (102,2,00102,"Sat Jan 03 00:00:00 1970 PST","Sat Jan 03 00:00:00 1970",2,"2 ",foo) (103,3,00103,"Sun Jan 04 00:00:00 1970 PST","Sun Jan 04 00:00:00 1970",3,"3 ",foo) (104,4,00104,"Mon Jan 05 00:00:00 1970 PST","Mon Jan 05 00:00:00 1970",4,"4 ",foo) (105,5,00105,"Tue Jan 06 00:00:00 1970 PST","Tue Jan 06 00:00:00 1970",5,"5 ",foo) (106,6,00106,"Wed Jan 07 00:00:00 1970 PST","Wed Jan 07 00:00:00 1970",6,"6 ",foo) (107,7,00107,"Thu Jan 08 00:00:00 1970 PST","Thu Jan 08 00:00:00 1970",7,"7 ",foo) (108,8,00108,"Fri Jan 09 00:00:00 1970 PST","Fri Jan 09 00:00:00 1970",8,"8 ",foo) (109,9,00109,"Sat Jan 10 00:00:00 1970 PST","Sat Jan 10 00:00:00 1970",9,"9 ",foo) (110,0,00110,"Sun Jan 11 00:00:00 1970 PST","Sun Jan 11 00:00:00 1970",0,"0 ",foo) (10 rows) -- empty result SELECT * FROM ft1 WHERE false; c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 ----+----+----+----+----+----+----+---- (0 rows) -- with WHERE clause EXPLAIN (VERBOSE, COSTS OFF) SELECT * FROM ft1 t1 WHERE t1.c1 = 101 AND t1.c6 = '1' AND t1.c7 >= '1'; QUERY PLAN --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan on public.ft1 t1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE ((c7 >= '1'::bpchar)) AND (("C 1" = 101)) AND ((c6 = '1'::text)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE ((c7 >= '1'::bpchar)) AND (("C 1" = 101)) AND ((c6 = '1'::text)) Partitioned Index Scan using t1_pkey on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Index Cond: ("T 1"."C 1" = 101) Filter: (("T 1".c7 >= '1'::bpchar) AND (("T 1".c6)::text = '1'::text)) Selected Partitions: 1 (13 rows) SELECT * FROM ft1 t1 WHERE t1.c1 = 101 AND t1.c6 = '1' AND t1.c7 >= '1'; c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 -----+----+-------+------------------------------+--------------------------+----+------------+----- 101 | 1 | 00101 | Fri Jan 02 00:00:00 1970 PST | Fri Jan 02 00:00:00 1970 | 1 | 1 | foo (1 row) -- with FOR UPDATE/SHARE EXPLAIN (VERBOSE, COSTS OFF) SELECT * FROM ft1 t1 WHERE c1 = 101 FOR UPDATE; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan on public.ft1 t1 Output: c1, c2, c3, c4, c5, c6, c7, c8, t1.* Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = 101)) FOR UPDATE FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = 101)) FOR UPDATE LockRows Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid -> Partitioned Index Scan using t1_pkey on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid Index Cond: ("T 1"."C 1" = 101) Selected Partitions: 1 (14 rows) SELECT * FROM ft1 t1 WHERE c1 = 101 FOR UPDATE; c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 -----+----+-------+------------------------------+--------------------------+----+------------+----- 101 | 1 | 00101 | Fri Jan 02 00:00:00 1970 PST | Fri Jan 02 00:00:00 1970 | 1 | 1 | foo (1 row) EXPLAIN (VERBOSE, COSTS OFF) SELECT * FROM ft1 t1 WHERE c1 = 102 FOR SHARE; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------ Foreign Scan on public.ft1 t1 Output: c1, c2, c3, c4, c5, c6, c7, c8, t1.* Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = 102)) FOR SHARE FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = 102)) FOR SHARE LockRows Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid -> Partitioned Index Scan using t1_pkey on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid Index Cond: ("T 1"."C 1" = 102) Selected Partitions: 1 (14 rows) SELECT * FROM ft1 t1 WHERE c1 = 102 FOR SHARE; c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 -----+----+-------+------------------------------+--------------------------+----+------------+----- 102 | 2 | 00102 | Sat Jan 03 00:00:00 1970 PST | Sat Jan 03 00:00:00 1970 | 2 | 2 | foo (1 row) -- aggregate SELECT COUNT(*) FROM ft1 t1; count ------- 1000 (1 row) -- subquery SELECT * FROM ft1 t1 WHERE t1.c3 IN (SELECT c3 FROM ft2 t2 WHERE c1 <= 10) ORDER BY c1; c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 ----+----+-------+------------------------------+--------------------------+----+------------+----- 1 | 1 | 00001 | Fri Jan 02 00:00:00 1970 PST | Fri Jan 02 00:00:00 1970 | 1 | 1 | foo 2 | 2 | 00002 | Sat Jan 03 00:00:00 1970 PST | Sat Jan 03 00:00:00 1970 | 2 | 2 | foo 3 | 3 | 00003 | Sun Jan 04 00:00:00 1970 PST | Sun Jan 04 00:00:00 1970 | 3 | 3 | foo 4 | 4 | 00004 | Mon Jan 05 00:00:00 1970 PST | Mon Jan 05 00:00:00 1970 | 4 | 4 | foo 5 | 5 | 00005 | Tue Jan 06 00:00:00 1970 PST | Tue Jan 06 00:00:00 1970 | 5 | 5 | foo 6 | 6 | 00006 | Wed Jan 07 00:00:00 1970 PST | Wed Jan 07 00:00:00 1970 | 6 | 6 | foo 7 | 7 | 00007 | Thu Jan 08 00:00:00 1970 PST | Thu Jan 08 00:00:00 1970 | 7 | 7 | foo 8 | 8 | 00008 | Fri Jan 09 00:00:00 1970 PST | Fri Jan 09 00:00:00 1970 | 8 | 8 | foo 9 | 9 | 00009 | Sat Jan 10 00:00:00 1970 PST | Sat Jan 10 00:00:00 1970 | 9 | 9 | foo 10 | 0 | 00010 | Sun Jan 11 00:00:00 1970 PST | Sun Jan 11 00:00:00 1970 | 0 | 0 | foo (10 rows) -- subquery+MAX SELECT * FROM ft1 t1 WHERE t1.c3 = (SELECT MAX(c3) FROM ft2 t2) ORDER BY c1; c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 ------+----+-------+------------------------------+--------------------------+----+------------+----- 1000 | 0 | 01000 | Thu Jan 01 00:00:00 1970 PST | Thu Jan 01 00:00:00 1970 | 0 | 0 | foo (1 row) -- used in CTE WITH t1 AS (SELECT * FROM ft1 WHERE c1 <= 10) SELECT t2.c1, t2.c2, t2.c3, t2.c4 FROM t1, ft2 t2 WHERE t1.c1 = t2.c1 ORDER BY t1.c1; c1 | c2 | c3 | c4 ----+----+-------+------------------------------ 1 | 1 | 00001 | Fri Jan 02 00:00:00 1970 PST 2 | 2 | 00002 | Sat Jan 03 00:00:00 1970 PST 3 | 3 | 00003 | Sun Jan 04 00:00:00 1970 PST 4 | 4 | 00004 | Mon Jan 05 00:00:00 1970 PST 5 | 5 | 00005 | Tue Jan 06 00:00:00 1970 PST 6 | 6 | 00006 | Wed Jan 07 00:00:00 1970 PST 7 | 7 | 00007 | Thu Jan 08 00:00:00 1970 PST 8 | 8 | 00008 | Fri Jan 09 00:00:00 1970 PST 9 | 9 | 00009 | Sat Jan 10 00:00:00 1970 PST 10 | 0 | 00010 | Sun Jan 11 00:00:00 1970 PST (10 rows) -- fixed values SELECT 'fixed', NULL FROM ft1 t1 WHERE c1 = 1; ?column? | ?column? ----------+---------- fixed | (1 row) -- Test forcing the remote server to produce sorted data for a merge join. SET enable_hashjoin TO false; SET enable_nestloop TO false; -- inner join; expressions in the clauses appear in the equivalence class list EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2."C 1" FROM ft2 t1 JOIN "S 1"."T 1" t2 ON (t1.c1 = t2."C 1") OFFSET 100 LIMIT 10; QUERY PLAN ------------------------------------------------------------------------------------------------------ Limit Output: t1.c1, t2."C 1" -> Merge Join Output: t1.c1, t2."C 1" Merge Cond: (t1.c1 = t2."C 1") -> Foreign Scan on public.ft2 t1 Output: t1.c1 Node ID: 1 Remote SQL: SELECT "C 1" FROM "S 1"."T 1" ORDER BY "C 1" ASC NULLS LAST -> Materialize Output: t2."C 1" -> Partition Iterator Output: t2."C 1" Iterations: 2 -> Partitioned Index Only Scan using t1_pkey on "S 1"."T 1" t2 Output: t2."C 1" Selected Partitions: 1..2 FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1" FROM "S 1"."T 1" ORDER BY "C 1" ASC NULLS LAST Partition Iterator Output: "C 1" Iterations: 2 -> Partitioned Index Only Scan using t1_pkey on "S 1"."T 1" Output: "C 1" Selected Partitions: 1..2 (27 rows) SELECT t1.c1, t2."C 1" FROM ft2 t1 JOIN "S 1"."T 1" t2 ON (t1.c1 = t2."C 1") OFFSET 100 LIMIT 10; c1 | C 1 -----+----- 101 | 101 102 | 102 103 | 103 104 | 104 105 | 105 106 | 106 107 | 107 108 | 108 109 | 109 110 | 110 (10 rows) -- outer join; expressions in the clauses do not appear in equivalence class -- list but no output change as compared to the previous query EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2."C 1" FROM ft2 t1 LEFT JOIN "S 1"."T 1" t2 ON (t1.c1 = t2."C 1") OFFSET 100 LIMIT 10; QUERY PLAN ------------------------------------------------------------------------------------------------------ Limit Output: t1.c1, t2."C 1" -> Merge Left Join Output: t1.c1, t2."C 1" Merge Cond: (t1.c1 = t2."C 1") -> Foreign Scan on public.ft2 t1 Output: t1.c1 Node ID: 1 Remote SQL: SELECT "C 1" FROM "S 1"."T 1" ORDER BY "C 1" ASC NULLS LAST -> Materialize Output: t2."C 1" -> Partition Iterator Output: t2."C 1" Iterations: 2 -> Partitioned Index Only Scan using t1_pkey on "S 1"."T 1" t2 Output: t2."C 1" Selected Partitions: 1..2 FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1" FROM "S 1"."T 1" ORDER BY "C 1" ASC NULLS LAST Partition Iterator Output: "C 1" Iterations: 2 -> Partitioned Index Only Scan using t1_pkey on "S 1"."T 1" Output: "C 1" Selected Partitions: 1..2 (27 rows) SELECT t1.c1, t2."C 1" FROM ft2 t1 LEFT JOIN "S 1"."T 1" t2 ON (t1.c1 = t2."C 1") OFFSET 100 LIMIT 10; c1 | C 1 -----+----- 101 | 101 102 | 102 103 | 103 104 | 104 105 | 105 106 | 106 107 | 107 108 | 108 109 | 109 110 | 110 (10 rows) -- A join between local table and foreign join. ORDER BY clause is added to the -- foreign join so that the local table can be joined using merge join strategy. EXPLAIN (VERBOSE, COSTS OFF) SELECT t1."C 1" FROM "S 1"."T 1" t1 left join ft1 t2 join ft2 t3 on (t2.c1 = t3.c1) on (t3.c1 = t1."C 1") OFFSET 100 LIMIT 10; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Limit Output: t1."C 1" -> Merge Left Join Output: t1."C 1" Merge Cond: (t1."C 1" = t3.c1) -> Partition Iterator Output: t1."C 1" Iterations: 2 -> Partitioned Index Only Scan using t1_pkey on "S 1"."T 1" t1 Output: t1."C 1" Selected Partitions: 1..2 -> Materialize Output: t3.c1 -> Foreign Scan Output: t3.c1 Node ID: 1 Relations: (public.ft1 t2) INNER JOIN (public.ft2 t3) Remote SQL: SELECT r3."C 1" FROM ("S 1"."T 1" r2 INNER JOIN "S 1"."T 1" r3 ON (((r2."C 1" = r3."C 1")))) ORDER BY r2."C 1" ASC NULLS LAST FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r3."C 1" FROM ("S 1"."T 1" r2 INNER JOIN "S 1"."T 1" r3 ON (((r2."C 1" = r3."C 1")))) ORDER BY r2."C 1" ASC NULLS LAST Sort Output: r3."C 1", r2."C 1" Sort Key: r3."C 1" -> Hash Join Output: r3."C 1", r2."C 1" Hash Cond: (r2."C 1" = r3."C 1") -> Partition Iterator Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" r2 Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 Selected Partitions: 1..2 -> Hash Output: r3."C 1" -> Partition Iterator Output: r3."C 1" Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" r3 Output: r3."C 1" Selected Partitions: 1..2 (42 rows) SELECT t1."C 1" FROM "S 1"."T 1" t1 left join ft1 t2 join ft2 t3 on (t2.c1 = t3.c1) on (t3.c1 = t1."C 1") OFFSET 100 LIMIT 10; C 1 ----- 101 102 103 104 105 106 107 108 109 110 (10 rows) -- Test similar to above, except that the full join prevents any equivalence -- classes from being merged. This produces single relation equivalence classes -- included in join restrictions. EXPLAIN (VERBOSE, COSTS OFF) SELECT t1."C 1", t2.c1, t3.c1 FROM "S 1"."T 1" t1 left join ft1 t2 full join ft2 t3 on (t2.c1 = t3.c1) on (t3.c1 = t1."C 1") OFFSET 100 LIMIT 10; QUERY PLAN --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Limit Output: t1."C 1", t2.c1, t3.c1 -> Merge Left Join Output: t1."C 1", t2.c1, t3.c1 Merge Cond: (t1."C 1" = t3.c1) -> Partition Iterator Output: t1."C 1" Iterations: 2 -> Partitioned Index Only Scan using t1_pkey on "S 1"."T 1" t1 Output: t1."C 1" Selected Partitions: 1..2 -> Materialize Output: t3.c1, t2.c1 -> Foreign Scan Output: t3.c1, t2.c1 Node ID: 1 Relations: (public.ft2 t3) LEFT JOIN (public.ft1 t2) Remote SQL: SELECT r3."C 1", r2."C 1" FROM ("S 1"."T 1" r3 LEFT JOIN "S 1"."T 1" r2 ON (((r2."C 1" = r3."C 1")))) ORDER BY r3."C 1" ASC NULLS LAST FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r3."C 1", r2."C 1" FROM ("S 1"."T 1" r3 LEFT JOIN "S 1"."T 1" r2 ON (((r2."C 1" = r3."C 1")))) ORDER BY r3."C 1" ASC NULLS LAST Sort Output: r3."C 1", r2."C 1" Sort Key: r3."C 1" -> Hash Left Join Output: r3."C 1", r2."C 1" Hash Cond: (r3."C 1" = r2."C 1") -> Partition Iterator Output: r3."C 1", r3.c2, r3.c3, r3.c4, r3.c5, r3.c6, r3.c7, r3.c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" r3 Output: r3."C 1", r3.c2, r3.c3, r3.c4, r3.c5, r3.c6, r3.c7, r3.c8 Selected Partitions: 1..2 -> Hash Output: r2."C 1" -> Partition Iterator Output: r2."C 1" Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" r2 Output: r2."C 1" Selected Partitions: 1..2 (42 rows) SELECT t1."C 1", t2.c1, t3.c1 FROM "S 1"."T 1" t1 left join ft1 t2 full join ft2 t3 on (t2.c1 = t3.c1) on (t3.c1 = t1."C 1") OFFSET 100 LIMIT 10; C 1 | c1 | c1 -----+-----+----- 101 | 101 | 101 102 | 102 | 102 103 | 103 | 103 104 | 104 | 104 105 | 105 | 105 106 | 106 | 106 107 | 107 | 107 108 | 108 | 108 109 | 109 | 109 110 | 110 | 110 (10 rows) -- Test similar to above with all full outer joins EXPLAIN (VERBOSE, COSTS OFF) SELECT t1."C 1", t2.c1, t3.c1 FROM "S 1"."T 1" t1 full join ft1 t2 full join ft2 t3 on (t2.c1 = t3.c1) on (t3.c1 = t1."C 1") OFFSET 100 LIMIT 10; QUERY PLAN --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Limit Output: t1."C 1", t2.c1, t3.c1 -> Merge Full Join Output: t1."C 1", t2.c1, t3.c1 Merge Cond: (t1."C 1" = t3.c1) -> Partition Iterator Output: t1."C 1" Iterations: 2 -> Partitioned Index Only Scan using t1_pkey on "S 1"."T 1" t1 Output: t1."C 1" Selected Partitions: 1..2 -> Materialize Output: t2.c1, t3.c1 -> Foreign Scan Output: t2.c1, t3.c1 Node ID: 1 Relations: (public.ft1 t2) FULL JOIN (public.ft2 t3) Remote SQL: SELECT r2."C 1", r3."C 1" FROM ("S 1"."T 1" r2 FULL JOIN "S 1"."T 1" r3 ON (((r2."C 1" = r3."C 1")))) ORDER BY r3."C 1" ASC NULLS LAST FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r2."C 1", r3."C 1" FROM ("S 1"."T 1" r2 FULL JOIN "S 1"."T 1" r3 ON (((r2."C 1" = r3."C 1")))) ORDER BY r3."C 1" ASC NULLS LAST Sort Output: r2."C 1", r3."C 1" Sort Key: r3."C 1" -> Hash Full Join Output: r2."C 1", r3."C 1" Hash Cond: (r2."C 1" = r3."C 1") -> Partition Iterator Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" r2 Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 Selected Partitions: 1..2 -> Hash Output: r3."C 1" -> Partition Iterator Output: r3."C 1" Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" r3 Output: r3."C 1" Selected Partitions: 1..2 (42 rows) SELECT t1."C 1", t2.c1, t3.c1 FROM "S 1"."T 1" t1 full join ft1 t2 full join ft2 t3 on (t2.c1 = t3.c1) on (t3.c1 = t1."C 1") OFFSET 100 LIMIT 10; C 1 | c1 | c1 -----+-----+----- 101 | 101 | 101 102 | 102 | 102 103 | 103 | 103 104 | 104 | 104 105 | 105 | 105 106 | 106 | 106 107 | 107 | 107 108 | 108 | 108 109 | 109 | 109 110 | 110 | 110 (10 rows) RESET enable_hashjoin; RESET enable_nestloop; -- Test executing assertion in estimate_path_cost_size() that makes sure that -- retrieved_rows for foreign rel re-used to cost pre-sorted foreign paths is -- a sensible value even when the rel has tuples=0 CREATE TABLE loct_empty (c1 int NOT NULL, c2 text); CREATE FOREIGN TABLE ft_empty (c1 int NOT NULL, c2 text) SERVER loopback OPTIONS (table_name 'loct_empty'); INSERT INTO loct_empty SELECT id, 'AAA' || to_char(id, 'FM000') FROM generate_series(1, 100) id; DELETE FROM loct_empty; ANALYZE ft_empty; EXPLAIN (VERBOSE, COSTS OFF) SELECT * FROM ft_empty ORDER BY c1; QUERY PLAN ---------------------------------------------------------------------------------------------------------- Foreign Scan on public.ft_empty Output: c1, c2 Node ID: 1 Remote SQL: SELECT c1, c2 FROM public.loct_empty ORDER BY c1 ASC NULLS LAST FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c1, c2 FROM public.loct_empty ORDER BY c1 ASC NULLS LAST Sort Output: c1, c2 Sort Key: loct_empty.c1 -> Seq Scan on public.loct_empty Output: c1, c2 (13 rows) -- ====================================================================================================================================== -- TEST-MODULE: WHERE with remotely-executable conditions -- -------------------------------------- -- ====================================================================================================================================== EXPLAIN (VERBOSE, COSTS OFF) SELECT * FROM ft1 t1 WHERE t1.c1 = 1; -- Var, OpExpr(b), Const QUERY PLAN ------------------------------------------------------------------------------------------------------------------------ Foreign Scan on public.ft1 t1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = 1)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = 1)) Partitioned Index Scan using t1_pkey on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Index Cond: ("T 1"."C 1" = 1) Selected Partitions: 1 (12 rows) EXPLAIN (VERBOSE, COSTS OFF) SELECT * FROM ft1 t1 WHERE t1.c1 = 100 AND t1.c2 = 0; -- BoolExpr QUERY PLAN ----------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan on public.ft1 t1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = 100)) AND ((c2 = 0)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = 100)) AND ((c2 = 0)) Partitioned Index Scan using t1_pkey on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Index Cond: ("T 1"."C 1" = 100) Filter: ("T 1".c2 = 0) Selected Partitions: 1 (13 rows) EXPLAIN (VERBOSE, COSTS OFF) SELECT * FROM ft1 t1 WHERE c1 IS NULL; -- NullTest QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------- Foreign Scan on public.ft1 t1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" IS NULL)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" IS NULL)) Result Output: "C 1", c2, c3, c4, c5, c6, c7, c8 One-Time Filter: false (11 rows) EXPLAIN (VERBOSE, COSTS OFF) SELECT * FROM ft1 t1 WHERE c1 IS NOT NULL; -- NullTest QUERY PLAN ---------------------------------------------------------------------------------------------------- Foreign Scan on public.ft1 t1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Selected Partitions: 1..2 (14 rows) EXPLAIN (VERBOSE, COSTS OFF) SELECT * FROM ft1 t1 WHERE round(abs(c1), 0) = 1; -- FuncExpr QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------ Foreign Scan on public.ft1 t1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE ((round(abs("C 1"), 0) = 1::numeric)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE ((round(abs("C 1"), 0) = 1::numeric)) Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Filter: (round((abs("T 1"."C 1"))::numeric, 0) = 1::numeric) Selected Partitions: 1..2 (15 rows) EXPLAIN (VERBOSE, COSTS OFF) SELECT * FROM ft1 t1 WHERE c1 = -c1; -- OpExpr(l) QUERY PLAN -------------------------------------------------------------------------------------------------------------------------------- Foreign Scan on public.ft1 t1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = (- "C 1"))) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = (- "C 1"))) Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: PART -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Filter: ("T 1"."C 1" = (- "T 1"."C 1")) Selected Partitions: PART (15 rows) EXPLAIN (VERBOSE, COSTS OFF) SELECT * FROM ft1 t1 WHERE (c1 IS NOT NULL) IS DISTINCT FROM (c1 IS NOT NULL); -- DistinctExpr QUERY PLAN ----------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan on public.ft1 t1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE ((("C 1" IS NOT NULL) IS DISTINCT FROM ("C 1" IS NOT NULL))) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE ((("C 1" IS NOT NULL) IS DISTINCT FROM ("C 1" IS NOT NULL))) Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Filter: (("T 1"."C 1" IS NOT NULL) IS DISTINCT FROM ("T 1"."C 1" IS NOT NULL)) Selected Partitions: 1..2 (15 rows) EXPLAIN (VERBOSE, COSTS OFF) SELECT * FROM ft1 t1 WHERE c1 = ANY(ARRAY[c2, 1, c1 + 0]); -- ScalarArrayOpExpr QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------------ Foreign Scan on public.ft1 t1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = ANY (ARRAY[c2, 1, ("C 1" + 0)]))) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = ANY (ARRAY[c2, 1, ("C 1" + 0)]))) Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: PART -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Filter: ("T 1"."C 1" = ANY (ARRAY["T 1".c2, 1, ("T 1"."C 1" + 0)])) Selected Partitions: PART (15 rows) EXPLAIN (VERBOSE, COSTS OFF) SELECT * FROM ft1 t1 WHERE c1 = (ARRAY[c1,c2,3])[1]; -- SubscriptingRef QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan on public.ft1 t1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = ((ARRAY["C 1", c2, 3])[1]))) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = ((ARRAY["C 1", c2, 3])[1]))) Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Filter: ("T 1"."C 1" = (ARRAY["T 1"."C 1", "T 1".c2, 3])[1]) Selected Partitions: 1..2 (15 rows) EXPLAIN (VERBOSE, COSTS OFF) SELECT * FROM ft1 t1 WHERE c6 = E'foo''s\\bar'; -- check special chars QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan on public.ft1 t1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE ((c6 = E'foo''s\\bar'::text)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE ((c6 = E'foo''s\\bar'::text)) Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Filter: (("T 1".c6)::text = 'foo''s\bar'::text) Selected Partitions: 1..2 (15 rows) EXPLAIN (VERBOSE, COSTS OFF) SELECT * FROM ft1 t1 WHERE c8 = 'foo'; -- can't be sent to remote QUERY PLAN ---------------------------------------------------------------------------------------------------- Foreign Scan on public.ft1 t1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Filter: (t1.c8 = 'foo'::user_enum) Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Selected Partitions: 1..2 (15 rows) -- parameterized remote path for foreign table EXPLAIN (VERBOSE, COSTS OFF) SELECT * FROM "S 1"."T 1" a, ft2 b WHERE a."C 1" = 47 AND b.c1 = a.c2; QUERY PLAN ------------------------------------------------------------------------------------------------------------- Nested Loop Output: a."C 1", a.c2, a.c3, a.c4, a.c5, a.c6, a.c7, a.c8, b.c1, b.c2, b.c3, b.c4, b.c5, b.c6, b.c7, b.c8 Join Filter: (a.c2 = b.c1) -> Partitioned Index Scan using t1_pkey on "S 1"."T 1" a Output: a."C 1", a.c2, a.c3, a.c4, a.c5, a.c6, a.c7, a.c8 Index Cond: (a."C 1" = 47) Selected Partitions: 1 -> Foreign Scan on public.ft2 b Output: b.c1, b.c2, b.c3, b.c4, b.c5, b.c6, b.c7, b.c8 Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Selected Partitions: 1..2 (21 rows) SELECT * FROM ft2 a, ft2 b WHERE a.c1 = 47 AND b.c1 = a.c2; c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 | c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 ----+----+-------+------------------------------+--------------------------+----+------------+-----+----+----+-------+------------------------------+--------------------------+----+------------+----- 47 | 7 | 00047 | Tue Feb 17 00:00:00 1970 PST | Tue Feb 17 00:00:00 1970 | 7 | 7 | foo | 7 | 7 | 00007 | Thu Jan 08 00:00:00 1970 PST | Thu Jan 08 00:00:00 1970 | 7 | 7 | foo (1 row) -- check both safe and unsafe join conditions EXPLAIN (VERBOSE, COSTS OFF) SELECT * FROM ft2 a, ft2 b WHERE a.c2 = 6 AND b.c1 = a.c1 AND a.c8 = 'foo' AND b.c7 = upper(a.c7); QUERY PLAN --------------------------------------------------------------------------------------------------------------------- Hash Join Output: a.c1, a.c2, a.c3, a.c4, a.c5, a.c6, a.c7, a.c8, b.c1, b.c2, b.c3, b.c4, b.c5, b.c6, b.c7, b.c8 Hash Cond: ((b.c1 = a.c1) AND ((b.c7)::text = upper((a.c7)::text))) -> Foreign Scan on public.ft2 b Output: b.c1, b.c2, b.c3, b.c4, b.c5, b.c6, b.c7, b.c8 Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" -> Hash Output: a.c1, a.c2, a.c3, a.c4, a.c5, a.c6, a.c7, a.c8 -> Foreign Scan on public.ft2 a Output: a.c1, a.c2, a.c3, a.c4, a.c5, a.c6, a.c7, a.c8 Filter: (a.c8 = 'foo'::user_enum) Node ID: 2 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE ((c2 = 6)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Selected Partitions: 1..2 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE ((c2 = 6)) Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Filter: ("T 1".c2 = 6) Selected Partitions: 1..2 (32 rows) SELECT * FROM ft2 a, ft2 b WHERE a.c2 = 6 AND b.c1 = a.c1 AND a.c8 = 'foo' AND b.c7 = upper(a.c7); c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 | c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 -----+----+-------+------------------------------+--------------------------+----+------------+-----+-----+----+-------+------------------------------+--------------------------+----+------------+----- 6 | 6 | 00006 | Wed Jan 07 00:00:00 1970 PST | Wed Jan 07 00:00:00 1970 | 6 | 6 | foo | 6 | 6 | 00006 | Wed Jan 07 00:00:00 1970 PST | Wed Jan 07 00:00:00 1970 | 6 | 6 | foo 16 | 6 | 00016 | Sat Jan 17 00:00:00 1970 PST | Sat Jan 17 00:00:00 1970 | 6 | 6 | foo | 16 | 6 | 00016 | Sat Jan 17 00:00:00 1970 PST | Sat Jan 17 00:00:00 1970 | 6 | 6 | foo 26 | 6 | 00026 | Tue Jan 27 00:00:00 1970 PST | Tue Jan 27 00:00:00 1970 | 6 | 6 | foo | 26 | 6 | 00026 | Tue Jan 27 00:00:00 1970 PST | Tue Jan 27 00:00:00 1970 | 6 | 6 | foo 36 | 6 | 00036 | Fri Feb 06 00:00:00 1970 PST | Fri Feb 06 00:00:00 1970 | 6 | 6 | foo | 36 | 6 | 00036 | Fri Feb 06 00:00:00 1970 PST | Fri Feb 06 00:00:00 1970 | 6 | 6 | foo 46 | 6 | 00046 | Mon Feb 16 00:00:00 1970 PST | Mon Feb 16 00:00:00 1970 | 6 | 6 | foo | 46 | 6 | 00046 | Mon Feb 16 00:00:00 1970 PST | Mon Feb 16 00:00:00 1970 | 6 | 6 | foo 56 | 6 | 00056 | Thu Feb 26 00:00:00 1970 PST | Thu Feb 26 00:00:00 1970 | 6 | 6 | foo | 56 | 6 | 00056 | Thu Feb 26 00:00:00 1970 PST | Thu Feb 26 00:00:00 1970 | 6 | 6 | foo 66 | 6 | 00066 | Sun Mar 08 00:00:00 1970 PST | Sun Mar 08 00:00:00 1970 | 6 | 6 | foo | 66 | 6 | 00066 | Sun Mar 08 00:00:00 1970 PST | Sun Mar 08 00:00:00 1970 | 6 | 6 | foo 76 | 6 | 00076 | Wed Mar 18 00:00:00 1970 PST | Wed Mar 18 00:00:00 1970 | 6 | 6 | foo | 76 | 6 | 00076 | Wed Mar 18 00:00:00 1970 PST | Wed Mar 18 00:00:00 1970 | 6 | 6 | foo 86 | 6 | 00086 | Sat Mar 28 00:00:00 1970 PST | Sat Mar 28 00:00:00 1970 | 6 | 6 | foo | 86 | 6 | 00086 | Sat Mar 28 00:00:00 1970 PST | Sat Mar 28 00:00:00 1970 | 6 | 6 | foo 96 | 6 | 00096 | Tue Apr 07 00:00:00 1970 PST | Tue Apr 07 00:00:00 1970 | 6 | 6 | foo | 96 | 6 | 00096 | Tue Apr 07 00:00:00 1970 PST | Tue Apr 07 00:00:00 1970 | 6 | 6 | foo 106 | 6 | 00106 | Wed Jan 07 00:00:00 1970 PST | Wed Jan 07 00:00:00 1970 | 6 | 6 | foo | 106 | 6 | 00106 | Wed Jan 07 00:00:00 1970 PST | Wed Jan 07 00:00:00 1970 | 6 | 6 | foo 116 | 6 | 00116 | Sat Jan 17 00:00:00 1970 PST | Sat Jan 17 00:00:00 1970 | 6 | 6 | foo | 116 | 6 | 00116 | Sat Jan 17 00:00:00 1970 PST | Sat Jan 17 00:00:00 1970 | 6 | 6 | foo 126 | 6 | 00126 | Tue Jan 27 00:00:00 1970 PST | Tue Jan 27 00:00:00 1970 | 6 | 6 | foo | 126 | 6 | 00126 | Tue Jan 27 00:00:00 1970 PST | Tue Jan 27 00:00:00 1970 | 6 | 6 | foo 136 | 6 | 00136 | Fri Feb 06 00:00:00 1970 PST | Fri Feb 06 00:00:00 1970 | 6 | 6 | foo | 136 | 6 | 00136 | Fri Feb 06 00:00:00 1970 PST | Fri Feb 06 00:00:00 1970 | 6 | 6 | foo 146 | 6 | 00146 | Mon Feb 16 00:00:00 1970 PST | Mon Feb 16 00:00:00 1970 | 6 | 6 | foo | 146 | 6 | 00146 | Mon Feb 16 00:00:00 1970 PST | Mon Feb 16 00:00:00 1970 | 6 | 6 | foo 156 | 6 | 00156 | Thu Feb 26 00:00:00 1970 PST | Thu Feb 26 00:00:00 1970 | 6 | 6 | foo | 156 | 6 | 00156 | Thu Feb 26 00:00:00 1970 PST | Thu Feb 26 00:00:00 1970 | 6 | 6 | foo 166 | 6 | 00166 | Sun Mar 08 00:00:00 1970 PST | Sun Mar 08 00:00:00 1970 | 6 | 6 | foo | 166 | 6 | 00166 | Sun Mar 08 00:00:00 1970 PST | Sun Mar 08 00:00:00 1970 | 6 | 6 | foo 176 | 6 | 00176 | Wed Mar 18 00:00:00 1970 PST | Wed Mar 18 00:00:00 1970 | 6 | 6 | foo | 176 | 6 | 00176 | Wed Mar 18 00:00:00 1970 PST | Wed Mar 18 00:00:00 1970 | 6 | 6 | foo 186 | 6 | 00186 | Sat Mar 28 00:00:00 1970 PST | Sat Mar 28 00:00:00 1970 | 6 | 6 | foo | 186 | 6 | 00186 | Sat Mar 28 00:00:00 1970 PST | Sat Mar 28 00:00:00 1970 | 6 | 6 | foo 196 | 6 | 00196 | Tue Apr 07 00:00:00 1970 PST | Tue Apr 07 00:00:00 1970 | 6 | 6 | foo | 196 | 6 | 00196 | Tue Apr 07 00:00:00 1970 PST | Tue Apr 07 00:00:00 1970 | 6 | 6 | foo 206 | 6 | 00206 | Wed Jan 07 00:00:00 1970 PST | Wed Jan 07 00:00:00 1970 | 6 | 6 | foo | 206 | 6 | 00206 | Wed Jan 07 00:00:00 1970 PST | Wed Jan 07 00:00:00 1970 | 6 | 6 | foo 216 | 6 | 00216 | Sat Jan 17 00:00:00 1970 PST | Sat Jan 17 00:00:00 1970 | 6 | 6 | foo | 216 | 6 | 00216 | Sat Jan 17 00:00:00 1970 PST | Sat Jan 17 00:00:00 1970 | 6 | 6 | foo 226 | 6 | 00226 | Tue Jan 27 00:00:00 1970 PST | Tue Jan 27 00:00:00 1970 | 6 | 6 | foo | 226 | 6 | 00226 | Tue Jan 27 00:00:00 1970 PST | Tue Jan 27 00:00:00 1970 | 6 | 6 | foo 236 | 6 | 00236 | Fri Feb 06 00:00:00 1970 PST | Fri Feb 06 00:00:00 1970 | 6 | 6 | foo | 236 | 6 | 00236 | Fri Feb 06 00:00:00 1970 PST | Fri Feb 06 00:00:00 1970 | 6 | 6 | foo 246 | 6 | 00246 | Mon Feb 16 00:00:00 1970 PST | Mon Feb 16 00:00:00 1970 | 6 | 6 | foo | 246 | 6 | 00246 | Mon Feb 16 00:00:00 1970 PST | Mon Feb 16 00:00:00 1970 | 6 | 6 | foo 256 | 6 | 00256 | Thu Feb 26 00:00:00 1970 PST | Thu Feb 26 00:00:00 1970 | 6 | 6 | foo | 256 | 6 | 00256 | Thu Feb 26 00:00:00 1970 PST | Thu Feb 26 00:00:00 1970 | 6 | 6 | foo 266 | 6 | 00266 | Sun Mar 08 00:00:00 1970 PST | Sun Mar 08 00:00:00 1970 | 6 | 6 | foo | 266 | 6 | 00266 | Sun Mar 08 00:00:00 1970 PST | Sun Mar 08 00:00:00 1970 | 6 | 6 | foo 276 | 6 | 00276 | Wed Mar 18 00:00:00 1970 PST | Wed Mar 18 00:00:00 1970 | 6 | 6 | foo | 276 | 6 | 00276 | Wed Mar 18 00:00:00 1970 PST | Wed Mar 18 00:00:00 1970 | 6 | 6 | foo 286 | 6 | 00286 | Sat Mar 28 00:00:00 1970 PST | Sat Mar 28 00:00:00 1970 | 6 | 6 | foo | 286 | 6 | 00286 | Sat Mar 28 00:00:00 1970 PST | Sat Mar 28 00:00:00 1970 | 6 | 6 | foo 296 | 6 | 00296 | Tue Apr 07 00:00:00 1970 PST | Tue Apr 07 00:00:00 1970 | 6 | 6 | foo | 296 | 6 | 00296 | Tue Apr 07 00:00:00 1970 PST | Tue Apr 07 00:00:00 1970 | 6 | 6 | foo 306 | 6 | 00306 | Wed Jan 07 00:00:00 1970 PST | Wed Jan 07 00:00:00 1970 | 6 | 6 | foo | 306 | 6 | 00306 | Wed Jan 07 00:00:00 1970 PST | Wed Jan 07 00:00:00 1970 | 6 | 6 | foo 316 | 6 | 00316 | Sat Jan 17 00:00:00 1970 PST | Sat Jan 17 00:00:00 1970 | 6 | 6 | foo | 316 | 6 | 00316 | Sat Jan 17 00:00:00 1970 PST | Sat Jan 17 00:00:00 1970 | 6 | 6 | foo 326 | 6 | 00326 | Tue Jan 27 00:00:00 1970 PST | Tue Jan 27 00:00:00 1970 | 6 | 6 | foo | 326 | 6 | 00326 | Tue Jan 27 00:00:00 1970 PST | Tue Jan 27 00:00:00 1970 | 6 | 6 | foo 336 | 6 | 00336 | Fri Feb 06 00:00:00 1970 PST | Fri Feb 06 00:00:00 1970 | 6 | 6 | foo | 336 | 6 | 00336 | Fri Feb 06 00:00:00 1970 PST | Fri Feb 06 00:00:00 1970 | 6 | 6 | foo 346 | 6 | 00346 | Mon Feb 16 00:00:00 1970 PST | Mon Feb 16 00:00:00 1970 | 6 | 6 | foo | 346 | 6 | 00346 | Mon Feb 16 00:00:00 1970 PST | Mon Feb 16 00:00:00 1970 | 6 | 6 | foo 356 | 6 | 00356 | Thu Feb 26 00:00:00 1970 PST | Thu Feb 26 00:00:00 1970 | 6 | 6 | foo | 356 | 6 | 00356 | Thu Feb 26 00:00:00 1970 PST | Thu Feb 26 00:00:00 1970 | 6 | 6 | foo 366 | 6 | 00366 | Sun Mar 08 00:00:00 1970 PST | Sun Mar 08 00:00:00 1970 | 6 | 6 | foo | 366 | 6 | 00366 | Sun Mar 08 00:00:00 1970 PST | Sun Mar 08 00:00:00 1970 | 6 | 6 | foo 376 | 6 | 00376 | Wed Mar 18 00:00:00 1970 PST | Wed Mar 18 00:00:00 1970 | 6 | 6 | foo | 376 | 6 | 00376 | Wed Mar 18 00:00:00 1970 PST | Wed Mar 18 00:00:00 1970 | 6 | 6 | foo 386 | 6 | 00386 | Sat Mar 28 00:00:00 1970 PST | Sat Mar 28 00:00:00 1970 | 6 | 6 | foo | 386 | 6 | 00386 | Sat Mar 28 00:00:00 1970 PST | Sat Mar 28 00:00:00 1970 | 6 | 6 | foo 396 | 6 | 00396 | Tue Apr 07 00:00:00 1970 PST | Tue Apr 07 00:00:00 1970 | 6 | 6 | foo | 396 | 6 | 00396 | Tue Apr 07 00:00:00 1970 PST | Tue Apr 07 00:00:00 1970 | 6 | 6 | foo 406 | 6 | 00406 | Wed Jan 07 00:00:00 1970 PST | Wed Jan 07 00:00:00 1970 | 6 | 6 | foo | 406 | 6 | 00406 | Wed Jan 07 00:00:00 1970 PST | Wed Jan 07 00:00:00 1970 | 6 | 6 | foo 416 | 6 | 00416 | Sat Jan 17 00:00:00 1970 PST | Sat Jan 17 00:00:00 1970 | 6 | 6 | foo | 416 | 6 | 00416 | Sat Jan 17 00:00:00 1970 PST | Sat Jan 17 00:00:00 1970 | 6 | 6 | foo 426 | 6 | 00426 | Tue Jan 27 00:00:00 1970 PST | Tue Jan 27 00:00:00 1970 | 6 | 6 | foo | 426 | 6 | 00426 | Tue Jan 27 00:00:00 1970 PST | Tue Jan 27 00:00:00 1970 | 6 | 6 | foo 436 | 6 | 00436 | Fri Feb 06 00:00:00 1970 PST | Fri Feb 06 00:00:00 1970 | 6 | 6 | foo | 436 | 6 | 00436 | Fri Feb 06 00:00:00 1970 PST | Fri Feb 06 00:00:00 1970 | 6 | 6 | foo 446 | 6 | 00446 | Mon Feb 16 00:00:00 1970 PST | Mon Feb 16 00:00:00 1970 | 6 | 6 | foo | 446 | 6 | 00446 | Mon Feb 16 00:00:00 1970 PST | Mon Feb 16 00:00:00 1970 | 6 | 6 | foo 456 | 6 | 00456 | Thu Feb 26 00:00:00 1970 PST | Thu Feb 26 00:00:00 1970 | 6 | 6 | foo | 456 | 6 | 00456 | Thu Feb 26 00:00:00 1970 PST | Thu Feb 26 00:00:00 1970 | 6 | 6 | foo 466 | 6 | 00466 | Sun Mar 08 00:00:00 1970 PST | Sun Mar 08 00:00:00 1970 | 6 | 6 | foo | 466 | 6 | 00466 | Sun Mar 08 00:00:00 1970 PST | Sun Mar 08 00:00:00 1970 | 6 | 6 | foo 476 | 6 | 00476 | Wed Mar 18 00:00:00 1970 PST | Wed Mar 18 00:00:00 1970 | 6 | 6 | foo | 476 | 6 | 00476 | Wed Mar 18 00:00:00 1970 PST | Wed Mar 18 00:00:00 1970 | 6 | 6 | foo 486 | 6 | 00486 | Sat Mar 28 00:00:00 1970 PST | Sat Mar 28 00:00:00 1970 | 6 | 6 | foo | 486 | 6 | 00486 | Sat Mar 28 00:00:00 1970 PST | Sat Mar 28 00:00:00 1970 | 6 | 6 | foo 496 | 6 | 00496 | Tue Apr 07 00:00:00 1970 PST | Tue Apr 07 00:00:00 1970 | 6 | 6 | foo | 496 | 6 | 00496 | Tue Apr 07 00:00:00 1970 PST | Tue Apr 07 00:00:00 1970 | 6 | 6 | foo 506 | 6 | 00506 | Wed Jan 07 00:00:00 1970 PST | Wed Jan 07 00:00:00 1970 | 6 | 6 | foo | 506 | 6 | 00506 | Wed Jan 07 00:00:00 1970 PST | Wed Jan 07 00:00:00 1970 | 6 | 6 | foo 516 | 6 | 00516 | Sat Jan 17 00:00:00 1970 PST | Sat Jan 17 00:00:00 1970 | 6 | 6 | foo | 516 | 6 | 00516 | Sat Jan 17 00:00:00 1970 PST | Sat Jan 17 00:00:00 1970 | 6 | 6 | foo 526 | 6 | 00526 | Tue Jan 27 00:00:00 1970 PST | Tue Jan 27 00:00:00 1970 | 6 | 6 | foo | 526 | 6 | 00526 | Tue Jan 27 00:00:00 1970 PST | Tue Jan 27 00:00:00 1970 | 6 | 6 | foo 536 | 6 | 00536 | Fri Feb 06 00:00:00 1970 PST | Fri Feb 06 00:00:00 1970 | 6 | 6 | foo | 536 | 6 | 00536 | Fri Feb 06 00:00:00 1970 PST | Fri Feb 06 00:00:00 1970 | 6 | 6 | foo 546 | 6 | 00546 | Mon Feb 16 00:00:00 1970 PST | Mon Feb 16 00:00:00 1970 | 6 | 6 | foo | 546 | 6 | 00546 | Mon Feb 16 00:00:00 1970 PST | Mon Feb 16 00:00:00 1970 | 6 | 6 | foo 556 | 6 | 00556 | Thu Feb 26 00:00:00 1970 PST | Thu Feb 26 00:00:00 1970 | 6 | 6 | foo | 556 | 6 | 00556 | Thu Feb 26 00:00:00 1970 PST | Thu Feb 26 00:00:00 1970 | 6 | 6 | foo 566 | 6 | 00566 | Sun Mar 08 00:00:00 1970 PST | Sun Mar 08 00:00:00 1970 | 6 | 6 | foo | 566 | 6 | 00566 | Sun Mar 08 00:00:00 1970 PST | Sun Mar 08 00:00:00 1970 | 6 | 6 | foo 576 | 6 | 00576 | Wed Mar 18 00:00:00 1970 PST | Wed Mar 18 00:00:00 1970 | 6 | 6 | foo | 576 | 6 | 00576 | Wed Mar 18 00:00:00 1970 PST | Wed Mar 18 00:00:00 1970 | 6 | 6 | foo 586 | 6 | 00586 | Sat Mar 28 00:00:00 1970 PST | Sat Mar 28 00:00:00 1970 | 6 | 6 | foo | 586 | 6 | 00586 | Sat Mar 28 00:00:00 1970 PST | Sat Mar 28 00:00:00 1970 | 6 | 6 | foo 596 | 6 | 00596 | Tue Apr 07 00:00:00 1970 PST | Tue Apr 07 00:00:00 1970 | 6 | 6 | foo | 596 | 6 | 00596 | Tue Apr 07 00:00:00 1970 PST | Tue Apr 07 00:00:00 1970 | 6 | 6 | foo 606 | 6 | 00606 | Wed Jan 07 00:00:00 1970 PST | Wed Jan 07 00:00:00 1970 | 6 | 6 | foo | 606 | 6 | 00606 | Wed Jan 07 00:00:00 1970 PST | Wed Jan 07 00:00:00 1970 | 6 | 6 | foo 616 | 6 | 00616 | Sat Jan 17 00:00:00 1970 PST | Sat Jan 17 00:00:00 1970 | 6 | 6 | foo | 616 | 6 | 00616 | Sat Jan 17 00:00:00 1970 PST | Sat Jan 17 00:00:00 1970 | 6 | 6 | foo 626 | 6 | 00626 | Tue Jan 27 00:00:00 1970 PST | Tue Jan 27 00:00:00 1970 | 6 | 6 | foo | 626 | 6 | 00626 | Tue Jan 27 00:00:00 1970 PST | Tue Jan 27 00:00:00 1970 | 6 | 6 | foo 636 | 6 | 00636 | Fri Feb 06 00:00:00 1970 PST | Fri Feb 06 00:00:00 1970 | 6 | 6 | foo | 636 | 6 | 00636 | Fri Feb 06 00:00:00 1970 PST | Fri Feb 06 00:00:00 1970 | 6 | 6 | foo 646 | 6 | 00646 | Mon Feb 16 00:00:00 1970 PST | Mon Feb 16 00:00:00 1970 | 6 | 6 | foo | 646 | 6 | 00646 | Mon Feb 16 00:00:00 1970 PST | Mon Feb 16 00:00:00 1970 | 6 | 6 | foo 656 | 6 | 00656 | Thu Feb 26 00:00:00 1970 PST | Thu Feb 26 00:00:00 1970 | 6 | 6 | foo | 656 | 6 | 00656 | Thu Feb 26 00:00:00 1970 PST | Thu Feb 26 00:00:00 1970 | 6 | 6 | foo 666 | 6 | 00666 | Sun Mar 08 00:00:00 1970 PST | Sun Mar 08 00:00:00 1970 | 6 | 6 | foo | 666 | 6 | 00666 | Sun Mar 08 00:00:00 1970 PST | Sun Mar 08 00:00:00 1970 | 6 | 6 | foo 676 | 6 | 00676 | Wed Mar 18 00:00:00 1970 PST | Wed Mar 18 00:00:00 1970 | 6 | 6 | foo | 676 | 6 | 00676 | Wed Mar 18 00:00:00 1970 PST | Wed Mar 18 00:00:00 1970 | 6 | 6 | foo 686 | 6 | 00686 | Sat Mar 28 00:00:00 1970 PST | Sat Mar 28 00:00:00 1970 | 6 | 6 | foo | 686 | 6 | 00686 | Sat Mar 28 00:00:00 1970 PST | Sat Mar 28 00:00:00 1970 | 6 | 6 | foo 696 | 6 | 00696 | Tue Apr 07 00:00:00 1970 PST | Tue Apr 07 00:00:00 1970 | 6 | 6 | foo | 696 | 6 | 00696 | Tue Apr 07 00:00:00 1970 PST | Tue Apr 07 00:00:00 1970 | 6 | 6 | foo 706 | 6 | 00706 | Wed Jan 07 00:00:00 1970 PST | Wed Jan 07 00:00:00 1970 | 6 | 6 | foo | 706 | 6 | 00706 | Wed Jan 07 00:00:00 1970 PST | Wed Jan 07 00:00:00 1970 | 6 | 6 | foo 716 | 6 | 00716 | Sat Jan 17 00:00:00 1970 PST | Sat Jan 17 00:00:00 1970 | 6 | 6 | foo | 716 | 6 | 00716 | Sat Jan 17 00:00:00 1970 PST | Sat Jan 17 00:00:00 1970 | 6 | 6 | foo 726 | 6 | 00726 | Tue Jan 27 00:00:00 1970 PST | Tue Jan 27 00:00:00 1970 | 6 | 6 | foo | 726 | 6 | 00726 | Tue Jan 27 00:00:00 1970 PST | Tue Jan 27 00:00:00 1970 | 6 | 6 | foo 736 | 6 | 00736 | Fri Feb 06 00:00:00 1970 PST | Fri Feb 06 00:00:00 1970 | 6 | 6 | foo | 736 | 6 | 00736 | Fri Feb 06 00:00:00 1970 PST | Fri Feb 06 00:00:00 1970 | 6 | 6 | foo 746 | 6 | 00746 | Mon Feb 16 00:00:00 1970 PST | Mon Feb 16 00:00:00 1970 | 6 | 6 | foo | 746 | 6 | 00746 | Mon Feb 16 00:00:00 1970 PST | Mon Feb 16 00:00:00 1970 | 6 | 6 | foo 756 | 6 | 00756 | Thu Feb 26 00:00:00 1970 PST | Thu Feb 26 00:00:00 1970 | 6 | 6 | foo | 756 | 6 | 00756 | Thu Feb 26 00:00:00 1970 PST | Thu Feb 26 00:00:00 1970 | 6 | 6 | foo 766 | 6 | 00766 | Sun Mar 08 00:00:00 1970 PST | Sun Mar 08 00:00:00 1970 | 6 | 6 | foo | 766 | 6 | 00766 | Sun Mar 08 00:00:00 1970 PST | Sun Mar 08 00:00:00 1970 | 6 | 6 | foo 776 | 6 | 00776 | Wed Mar 18 00:00:00 1970 PST | Wed Mar 18 00:00:00 1970 | 6 | 6 | foo | 776 | 6 | 00776 | Wed Mar 18 00:00:00 1970 PST | Wed Mar 18 00:00:00 1970 | 6 | 6 | foo 786 | 6 | 00786 | Sat Mar 28 00:00:00 1970 PST | Sat Mar 28 00:00:00 1970 | 6 | 6 | foo | 786 | 6 | 00786 | Sat Mar 28 00:00:00 1970 PST | Sat Mar 28 00:00:00 1970 | 6 | 6 | foo 796 | 6 | 00796 | Tue Apr 07 00:00:00 1970 PST | Tue Apr 07 00:00:00 1970 | 6 | 6 | foo | 796 | 6 | 00796 | Tue Apr 07 00:00:00 1970 PST | Tue Apr 07 00:00:00 1970 | 6 | 6 | foo 806 | 6 | 00806 | Wed Jan 07 00:00:00 1970 PST | Wed Jan 07 00:00:00 1970 | 6 | 6 | foo | 806 | 6 | 00806 | Wed Jan 07 00:00:00 1970 PST | Wed Jan 07 00:00:00 1970 | 6 | 6 | foo 816 | 6 | 00816 | Sat Jan 17 00:00:00 1970 PST | Sat Jan 17 00:00:00 1970 | 6 | 6 | foo | 816 | 6 | 00816 | Sat Jan 17 00:00:00 1970 PST | Sat Jan 17 00:00:00 1970 | 6 | 6 | foo 826 | 6 | 00826 | Tue Jan 27 00:00:00 1970 PST | Tue Jan 27 00:00:00 1970 | 6 | 6 | foo | 826 | 6 | 00826 | Tue Jan 27 00:00:00 1970 PST | Tue Jan 27 00:00:00 1970 | 6 | 6 | foo 836 | 6 | 00836 | Fri Feb 06 00:00:00 1970 PST | Fri Feb 06 00:00:00 1970 | 6 | 6 | foo | 836 | 6 | 00836 | Fri Feb 06 00:00:00 1970 PST | Fri Feb 06 00:00:00 1970 | 6 | 6 | foo 846 | 6 | 00846 | Mon Feb 16 00:00:00 1970 PST | Mon Feb 16 00:00:00 1970 | 6 | 6 | foo | 846 | 6 | 00846 | Mon Feb 16 00:00:00 1970 PST | Mon Feb 16 00:00:00 1970 | 6 | 6 | foo 856 | 6 | 00856 | Thu Feb 26 00:00:00 1970 PST | Thu Feb 26 00:00:00 1970 | 6 | 6 | foo | 856 | 6 | 00856 | Thu Feb 26 00:00:00 1970 PST | Thu Feb 26 00:00:00 1970 | 6 | 6 | foo 866 | 6 | 00866 | Sun Mar 08 00:00:00 1970 PST | Sun Mar 08 00:00:00 1970 | 6 | 6 | foo | 866 | 6 | 00866 | Sun Mar 08 00:00:00 1970 PST | Sun Mar 08 00:00:00 1970 | 6 | 6 | foo 876 | 6 | 00876 | Wed Mar 18 00:00:00 1970 PST | Wed Mar 18 00:00:00 1970 | 6 | 6 | foo | 876 | 6 | 00876 | Wed Mar 18 00:00:00 1970 PST | Wed Mar 18 00:00:00 1970 | 6 | 6 | foo 886 | 6 | 00886 | Sat Mar 28 00:00:00 1970 PST | Sat Mar 28 00:00:00 1970 | 6 | 6 | foo | 886 | 6 | 00886 | Sat Mar 28 00:00:00 1970 PST | Sat Mar 28 00:00:00 1970 | 6 | 6 | foo 896 | 6 | 00896 | Tue Apr 07 00:00:00 1970 PST | Tue Apr 07 00:00:00 1970 | 6 | 6 | foo | 896 | 6 | 00896 | Tue Apr 07 00:00:00 1970 PST | Tue Apr 07 00:00:00 1970 | 6 | 6 | foo 906 | 6 | 00906 | Wed Jan 07 00:00:00 1970 PST | Wed Jan 07 00:00:00 1970 | 6 | 6 | foo | 906 | 6 | 00906 | Wed Jan 07 00:00:00 1970 PST | Wed Jan 07 00:00:00 1970 | 6 | 6 | foo 916 | 6 | 00916 | Sat Jan 17 00:00:00 1970 PST | Sat Jan 17 00:00:00 1970 | 6 | 6 | foo | 916 | 6 | 00916 | Sat Jan 17 00:00:00 1970 PST | Sat Jan 17 00:00:00 1970 | 6 | 6 | foo 926 | 6 | 00926 | Tue Jan 27 00:00:00 1970 PST | Tue Jan 27 00:00:00 1970 | 6 | 6 | foo | 926 | 6 | 00926 | Tue Jan 27 00:00:00 1970 PST | Tue Jan 27 00:00:00 1970 | 6 | 6 | foo 936 | 6 | 00936 | Fri Feb 06 00:00:00 1970 PST | Fri Feb 06 00:00:00 1970 | 6 | 6 | foo | 936 | 6 | 00936 | Fri Feb 06 00:00:00 1970 PST | Fri Feb 06 00:00:00 1970 | 6 | 6 | foo 946 | 6 | 00946 | Mon Feb 16 00:00:00 1970 PST | Mon Feb 16 00:00:00 1970 | 6 | 6 | foo | 946 | 6 | 00946 | Mon Feb 16 00:00:00 1970 PST | Mon Feb 16 00:00:00 1970 | 6 | 6 | foo 956 | 6 | 00956 | Thu Feb 26 00:00:00 1970 PST | Thu Feb 26 00:00:00 1970 | 6 | 6 | foo | 956 | 6 | 00956 | Thu Feb 26 00:00:00 1970 PST | Thu Feb 26 00:00:00 1970 | 6 | 6 | foo 966 | 6 | 00966 | Sun Mar 08 00:00:00 1970 PST | Sun Mar 08 00:00:00 1970 | 6 | 6 | foo | 966 | 6 | 00966 | Sun Mar 08 00:00:00 1970 PST | Sun Mar 08 00:00:00 1970 | 6 | 6 | foo 976 | 6 | 00976 | Wed Mar 18 00:00:00 1970 PST | Wed Mar 18 00:00:00 1970 | 6 | 6 | foo | 976 | 6 | 00976 | Wed Mar 18 00:00:00 1970 PST | Wed Mar 18 00:00:00 1970 | 6 | 6 | foo 986 | 6 | 00986 | Sat Mar 28 00:00:00 1970 PST | Sat Mar 28 00:00:00 1970 | 6 | 6 | foo | 986 | 6 | 00986 | Sat Mar 28 00:00:00 1970 PST | Sat Mar 28 00:00:00 1970 | 6 | 6 | foo 996 | 6 | 00996 | Tue Apr 07 00:00:00 1970 PST | Tue Apr 07 00:00:00 1970 | 6 | 6 | foo | 996 | 6 | 00996 | Tue Apr 07 00:00:00 1970 PST | Tue Apr 07 00:00:00 1970 | 6 | 6 | foo (100 rows) -- bug before 9.3.5 due to sloppy handling of remote-estimate parameters SELECT * FROM ft1 WHERE c1 = ANY (ARRAY(SELECT c1 FROM ft2 WHERE c1 < 5)); c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 ----+----+-------+------------------------------+--------------------------+----+------------+----- 1 | 1 | 00001 | Fri Jan 02 00:00:00 1970 PST | Fri Jan 02 00:00:00 1970 | 1 | 1 | foo 2 | 2 | 00002 | Sat Jan 03 00:00:00 1970 PST | Sat Jan 03 00:00:00 1970 | 2 | 2 | foo 3 | 3 | 00003 | Sun Jan 04 00:00:00 1970 PST | Sun Jan 04 00:00:00 1970 | 3 | 3 | foo 4 | 4 | 00004 | Mon Jan 05 00:00:00 1970 PST | Mon Jan 05 00:00:00 1970 | 4 | 4 | foo (4 rows) SELECT * FROM ft2 WHERE c1 = ANY (ARRAY(SELECT c1 FROM ft1 WHERE c1 < 5)); c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 ----+----+-------+------------------------------+--------------------------+----+------------+----- 1 | 1 | 00001 | Fri Jan 02 00:00:00 1970 PST | Fri Jan 02 00:00:00 1970 | 1 | 1 | foo 2 | 2 | 00002 | Sat Jan 03 00:00:00 1970 PST | Sat Jan 03 00:00:00 1970 | 2 | 2 | foo 3 | 3 | 00003 | Sun Jan 04 00:00:00 1970 PST | Sun Jan 04 00:00:00 1970 | 3 | 3 | foo 4 | 4 | 00004 | Mon Jan 05 00:00:00 1970 PST | Mon Jan 05 00:00:00 1970 | 4 | 4 | foo (4 rows) -- we should not push order by clause with volatile expressions or unsafe -- collations EXPLAIN (VERBOSE, COSTS OFF) SELECT * FROM ft2 ORDER BY ft2.c1, random(); QUERY PLAN ---------------------------------------------------------------------------------------------------- Sort Output: c1, c2, c3, c4, c5, c6, c7, c8, (random()) Sort Key: ft2.c1, (random()) -> Foreign Scan on public.ft2 Output: c1, c2, c3, c4, c5, c6, c7, c8, random() Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Selected Partitions: 1..2 (17 rows) EXPLAIN (VERBOSE, COSTS OFF) SELECT * FROM ft2 ORDER BY ft2.c1, ft2.c3 collate "C"; QUERY PLAN ---------------------------------------------------------------------------------------------------- Sort Output: c1, c2, c3, c4, c5, c6, c7, c8, ((c3)::text) Sort Key: ft2.c1, ft2.c3 COLLATE "C" -> Foreign Scan on public.ft2 Output: c1, c2, c3, c4, c5, c6, c7, c8, (c3)::text Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Selected Partitions: 1..2 (17 rows) -- user-defined operator/function CREATE FUNCTION postgres_fdw_abs(int) RETURNS int AS $$ BEGIN RETURN abs($1); END $$ LANGUAGE plpgsql IMMUTABLE; CREATE OPERATOR === ( LEFTARG = int, RIGHTARG = int, PROCEDURE = int4eq, COMMUTATOR = === ); -- built-in operators and functions can be shipped for remote execution EXPLAIN (VERBOSE, COSTS OFF) SELECT count(c3) FROM ft1 t1 WHERE t1.c1 = abs(t1.c2); QUERY PLAN ------------------------------------------------------------------------------------------------------ Foreign Scan Output: (count(c3)) Node ID: 1 Relations: Aggregate on (public.ft1 t1) Remote SQL: SELECT count(c3) FROM "S 1"."T 1" WHERE (("C 1" = abs(c2))) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT count(c3) FROM "S 1"."T 1" WHERE (("C 1" = abs(c2))) Aggregate Output: count(c3) -> Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Filter: ("T 1"."C 1" = abs("T 1".c2)) Selected Partitions: 1..2 (18 rows) SELECT count(c3) FROM ft1 t1 WHERE t1.c1 = abs(t1.c2); count ------- 9 (1 row) EXPLAIN (VERBOSE, COSTS OFF) SELECT count(c3) FROM ft1 t1 WHERE t1.c1 = t1.c2; QUERY PLAN ------------------------------------------------------------------------------------------------- Foreign Scan Output: (count(c3)) Node ID: 1 Relations: Aggregate on (public.ft1 t1) Remote SQL: SELECT count(c3) FROM "S 1"."T 1" WHERE (("C 1" = c2)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT count(c3) FROM "S 1"."T 1" WHERE (("C 1" = c2)) Aggregate Output: count(c3) -> Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Filter: ("T 1"."C 1" = "T 1".c2) Selected Partitions: 1..2 (18 rows) SELECT count(c3) FROM ft1 t1 WHERE t1.c1 = t1.c2; count ------- 9 (1 row) -- by default, user-defined ones cannot EXPLAIN (VERBOSE, COSTS OFF) SELECT count(c3) FROM ft1 t1 WHERE t1.c1 = postgres_fdw_abs(t1.c2); QUERY PLAN -------------------------------------------------------------------------------- Aggregate Output: count(c3) -> Foreign Scan on public.ft1 t1 Output: c3, c1, c2 Filter: (t1.c1 = postgres_fdw_abs(t1.c2)) Node ID: 1 Remote SQL: SELECT "C 1", c2, c3 FROM "S 1"."T 1" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3 FROM "S 1"."T 1" Partition Iterator Output: "C 1", c2, c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3 Selected Partitions: 1..2 (17 rows) SELECT count(c3) FROM ft1 t1 WHERE t1.c1 = postgres_fdw_abs(t1.c2); count ------- 9 (1 row) EXPLAIN (VERBOSE, COSTS OFF) SELECT count(c3) FROM ft1 t1 WHERE t1.c1 === t1.c2; QUERY PLAN -------------------------------------------------------------------------------- Aggregate Output: count(c3) -> Foreign Scan on public.ft1 t1 Output: c3 Filter: (t1.c1 === t1.c2) Node ID: 1 Remote SQL: SELECT "C 1", c2, c3 FROM "S 1"."T 1" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3 FROM "S 1"."T 1" Partition Iterator Output: "C 1", c2, c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3 Selected Partitions: 1..2 (17 rows) SELECT count(c3) FROM ft1 t1 WHERE t1.c1 === t1.c2; count ------- 9 (1 row) -- ORDER BY can be shipped, though EXPLAIN (VERBOSE, COSTS OFF) SELECT * FROM ft1 t1 WHERE t1.c1 === t1.c2 order by t1.c2 limit 1; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------- Limit Output: c1, c2, c3, c4, c5, c6, c7, c8 -> Foreign Scan on public.ft1 t1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Filter: (t1.c1 === t1.c2) Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" ORDER BY c2 ASC NULLS LAST FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" ORDER BY c2 ASC NULLS LAST Sort Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Sort Key: "T 1".c2 -> Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Selected Partitions: 1..2 (20 rows) SELECT * FROM ft1 t1 WHERE t1.c1 === t1.c2 order by t1.c2 limit 1; c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 ----+----+-------+------------------------------+--------------------------+----+------------+----- 1 | 1 | 00001 | Fri Jan 02 00:00:00 1970 PST | Fri Jan 02 00:00:00 1970 | 1 | 1 | foo (1 row) -- but let's put them in an extension ... ALTER EXTENSION postgres_fdw ADD FUNCTION postgres_fdw_abs(int); ALTER EXTENSION postgres_fdw ADD OPERATOR === (int, int); ALTER SERVER loopback OPTIONS (ADD extensions 'postgres_fdw'); --nspt ERROR: invalid option "extensions" HINT: Valid options in this context are: service, connect_timeout, dbname, host, remote_nodename, hostaddr, port, localhost, localport, application_name, fencedUdfRPCMode, keepalives, keepalives_idle, keepalives_interval, keepalives_count, tcp_user_timeout, rw_timeout, sslmode, sslcompression, sslcert, sslkey, sslrootcert, sslcrl, requirepeer, krbsrvname, prototype, connection_info, connectionExtraInfo, target_session_attrs, use_remote_estimate, fdw_startup_cost, fdw_tuple_cost, updatable -- ... now they can be shipped EXPLAIN (VERBOSE, COSTS OFF) SELECT count(c3) FROM ft1 t1 WHERE t1.c1 = postgres_fdw_abs(t1.c2); QUERY PLAN -------------------------------------------------------------------------------- Aggregate Output: count(c3) -> Foreign Scan on public.ft1 t1 Output: c3, c1, c2 Filter: (t1.c1 = postgres_fdw_abs(t1.c2)) Node ID: 1 Remote SQL: SELECT "C 1", c2, c3 FROM "S 1"."T 1" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3 FROM "S 1"."T 1" Partition Iterator Output: "C 1", c2, c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3 Selected Partitions: 1..2 (17 rows) SELECT count(c3) FROM ft1 t1 WHERE t1.c1 = postgres_fdw_abs(t1.c2); count ------- 9 (1 row) EXPLAIN (VERBOSE, COSTS OFF) SELECT count(c3) FROM ft1 t1 WHERE t1.c1 === t1.c2; QUERY PLAN -------------------------------------------------------------------------------- Aggregate Output: count(c3) -> Foreign Scan on public.ft1 t1 Output: c3 Filter: (t1.c1 === t1.c2) Node ID: 1 Remote SQL: SELECT "C 1", c2, c3 FROM "S 1"."T 1" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3 FROM "S 1"."T 1" Partition Iterator Output: "C 1", c2, c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3 Selected Partitions: 1..2 (17 rows) SELECT count(c3) FROM ft1 t1 WHERE t1.c1 === t1.c2; count ------- 9 (1 row) -- and both ORDER BY and LIMIT can be shipped EXPLAIN (VERBOSE, COSTS OFF) SELECT * FROM ft1 t1 WHERE t1.c1 === t1.c2 order by t1.c2 limit 1; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------- Limit Output: c1, c2, c3, c4, c5, c6, c7, c8 -> Foreign Scan on public.ft1 t1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Filter: (t1.c1 === t1.c2) Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" ORDER BY c2 ASC NULLS LAST FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" ORDER BY c2 ASC NULLS LAST Sort Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Sort Key: "T 1".c2 -> Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Selected Partitions: 1..2 (20 rows) SELECT * FROM ft1 t1 WHERE t1.c1 === t1.c2 order by t1.c2 limit 1; c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 ----+----+-------+------------------------------+--------------------------+----+------------+----- 1 | 1 | 00001 | Fri Jan 02 00:00:00 1970 PST | Fri Jan 02 00:00:00 1970 | 1 | 1 | foo (1 row) -- case when expr explain (verbose, costs off) select * from ft1 where case c1 when 1 then 0 end = 0; QUERY PLAN -------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan on public.ft1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (((CASE "C 1" WHEN 1 THEN 0 ELSE NULL::integer END) = 0)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (((CASE "C 1" WHEN 1 THEN 0 ELSE NULL::integer END) = 0)) Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Filter: (CASE "T 1"."C 1" WHEN 1 THEN 0 ELSE NULL::integer END = 0) Selected Partitions: 1..2 (15 rows) select * from ft1 where case c1 when 1 then 0 end = 0; c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 ----+----+-------+------------------------------+--------------------------+----+------------+----- 1 | 1 | 00001 | Fri Jan 02 00:00:00 1970 PST | Fri Jan 02 00:00:00 1970 | 1 | 1 | foo (1 row) -- ====================================================================================================================================== -- TEST-MODULE: JOIN queries -- -------------------------------------- -- ====================================================================================================================================== -- Analyze ft4 and ft5 so that we have better statistics. These tables do not -- have use_remote_estimate set. ANALYZE ft4; ANALYZE ft5; -- join two tables EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c1 FROM ft1 t1 JOIN ft2 t2 ON (t1.c1 = t2.c1) ORDER BY t1.c3, t1.c1 OFFSET 100 LIMIT 10; QUERY PLAN --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: t1.c1, t2.c1, t1.c3 Node ID: 1 Relations: (public.ft1 t1) INNER JOIN (public.ft2 t2) Remote SQL: SELECT r1."C 1", r2."C 1", r1.c3 FROM ("S 1"."T 1" r1 INNER JOIN "S 1"."T 1" r2 ON (((r1."C 1" = r2."C 1")))) ORDER BY r1.c3 ASC NULLS LAST, r1."C 1" ASC NULLS LAST LIMIT 10::bigint OFFSET 100::bigint FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r1."C 1", r2."C 1", r1.c3 FROM ("S 1"."T 1" r1 INNER JOIN "S 1"."T 1" r2 ON (((r1."C 1" = r2."C 1")))) ORDER BY r1.c3 ASC NULLS LAST, r1."C 1" ASC NULLS LAST LIMIT 10::bigint OFFSET 100::bigint Limit Output: r1."C 1", r2."C 1", r1.c3 -> Sort Output: r1."C 1", r2."C 1", r1.c3 Sort Key: r1.c3, r1."C 1" -> Hash Join Output: r1."C 1", r2."C 1", r1.c3 Hash Cond: (r1."C 1" = r2."C 1") -> Partition Iterator Output: r1."C 1", r1.c2, r1.c3, r1.c4, r1.c5, r1.c6, r1.c7, r1.c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" r1 Output: r1."C 1", r1.c2, r1.c3, r1.c4, r1.c5, r1.c6, r1.c7, r1.c8 Selected Partitions: 1..2 -> Hash Output: r2."C 1" -> Partition Iterator Output: r2."C 1" Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" r2 Output: r2."C 1" Selected Partitions: 1..2 (31 rows) SELECT t1.c1, t2.c1 FROM ft1 t1 JOIN ft2 t2 ON (t1.c1 = t2.c1) ORDER BY t1.c3, t1.c1 OFFSET 100 LIMIT 10; c1 | c1 -----+----- 101 | 101 102 | 102 103 | 103 104 | 104 105 | 105 106 | 106 107 | 107 108 | 108 109 | 109 110 | 110 (10 rows) -- join three tables EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c2, t3.c3 FROM ft1 t1 JOIN ft2 t2 ON (t1.c1 = t2.c1) JOIN ft4 t3 ON (t3.c1 = t1.c1) ORDER BY t1.c3, t1.c1 OFFSET 10 LIMIT 10; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Foreign Scan Output: t1.c1, t2.c2, t3.c3, t1.c3 Node ID: 1 Relations: ((public.ft1 t1) INNER JOIN (public.ft2 t2)) INNER JOIN (public.ft4 t3) Remote SQL: SELECT r1."C 1", r2.c2, r4.c3, r1.c3 FROM (("S 1"."T 1" r1 INNER JOIN "S 1"."T 1" r2 ON (((r1."C 1" = r2."C 1")))) INNER JOIN "S 1"."T 3" r4 ON (((r1."C 1" = r4.c1)))) ORDER BY r1.c3 ASC NULLS LAST, r1."C 1" ASC NULLS LAST LIMIT 10::bigint OFFSET 10::bigint FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r1."C 1", r2.c2, r4.c3, r1.c3 FROM (("S 1"."T 1" r1 INNER JOIN "S 1"."T 1" r2 ON (((r1."C 1" = r2."C 1")))) INNER JOIN "S 1"."T 3" r4 ON (((r1."C 1" = r4.c1)))) ORDER BY r1.c3 ASC NULLS LAST, r1."C 1" ASC NULLS LAST LIMIT 10::bigint OFFSET 10::bigint Limit Output: r1."C 1", r2.c2, r4.c3, r1.c3 -> Sort Output: r1."C 1", r2.c2, r4.c3, r1.c3 Sort Key: r1.c3, r1."C 1" -> Merge Join Output: r1."C 1", r2.c2, r4.c3, r1.c3 Merge Cond: (r1."C 1" = r4.c1) -> Merge Join Output: r1."C 1", r1.c3, r2.c2, r2."C 1" Merge Cond: (r1."C 1" = r2."C 1") -> Partition Iterator Output: r1."C 1", r1.c2, r1.c3, r1.c4, r1.c5, r1.c6, r1.c7, r1.c8 Iterations: 2 -> Partitioned Index Scan using t1_pkey on "S 1"."T 1" r1 Output: r1."C 1", r1.c2, r1.c3, r1.c4, r1.c5, r1.c6, r1.c7, r1.c8 Selected Partitions: 1..2 -> Materialize Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 -> Partition Iterator Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 Iterations: 2 -> Partitioned Index Scan using t1_pkey on "S 1"."T 1" r2 Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 Selected Partitions: 1..2 -> Sort Output: r4.c3, r4.c1 Sort Key: r4.c1 -> Partition Iterator Output: r4.c3, r4.c1 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" r4 Output: r4.c3, r4.c1 Selected Partitions: 1..2 (43 rows) SELECT t1.c1, t2.c2, t3.c3 FROM ft1 t1 JOIN ft2 t2 ON (t1.c1 = t2.c1) JOIN ft4 t3 ON (t3.c1 = t1.c1) ORDER BY t1.c3, t1.c1 OFFSET 10 LIMIT 10; c1 | c2 | c3 ----+----+-------- 22 | 2 | AAA022 24 | 4 | AAA024 26 | 6 | AAA026 28 | 8 | AAA028 30 | 0 | AAA030 32 | 2 | AAA032 34 | 4 | AAA034 36 | 6 | AAA036 38 | 8 | AAA038 40 | 0 | AAA040 (10 rows) -- left outer join EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c1 FROM ft4 t1 LEFT JOIN ft5 t2 ON (t1.c1 = t2.c1) ORDER BY t1.c1, t2.c1 OFFSET 10 LIMIT 10; QUERY PLAN --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: t1.c1, t2.c1 Node ID: 1 Relations: (public.ft4 t1) LEFT JOIN (public.ft5 t2) Remote SQL: SELECT r1.c1, r2.c1 FROM ("S 1"."T 3" r1 LEFT JOIN "S 1"."T 4" r2 ON (((r1.c1 = r2.c1)))) ORDER BY r1.c1 ASC NULLS LAST, r2.c1 ASC NULLS LAST LIMIT 10::bigint OFFSET 10::bigint FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r1.c1, r2.c1 FROM ("S 1"."T 3" r1 LEFT JOIN "S 1"."T 4" r2 ON (((r1.c1 = r2.c1)))) ORDER BY r1.c1 ASC NULLS LAST, r2.c1 ASC NULLS LAST LIMIT 10::bigint OFFSET 10::bigint Limit Output: r1.c1, r2.c1 -> Sort Output: r1.c1, r2.c1 Sort Key: r1.c1, r2.c1 -> Hash Left Join Output: r1.c1, r2.c1 Hash Cond: (r1.c1 = r2.c1) -> Partition Iterator Output: r1.c1, r1.c2, r1.c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" r1 Output: r1.c1, r1.c2, r1.c3 Selected Partitions: 1..2 -> Hash Output: r2.c1 -> Partition Iterator Output: r2.c1 Iterations: 2, Sub Iterations: 4 -> Partitioned Seq Scan on "S 1"."T 4" r2 Output: r2.c1 Selected Partitions: 1..2 Selected Subpartitions: ALL (32 rows) SELECT t1.c1, t2.c1 FROM ft4 t1 LEFT JOIN ft5 t2 ON (t1.c1 = t2.c1) ORDER BY t1.c1, t2.c1 OFFSET 10 LIMIT 10; c1 | c1 ----+---- 22 | 24 | 24 26 | 28 | 30 | 30 32 | 34 | 36 | 36 38 | 40 | (10 rows) -- left outer join three tables EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c2, t3.c3 FROM ft2 t1 LEFT JOIN ft2 t2 ON (t1.c1 = t2.c1) LEFT JOIN ft4 t3 ON (t2.c1 = t3.c1) OFFSET 10 LIMIT 10; QUERY PLAN -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: t1.c1, t2.c2, t3.c3 Node ID: 1 Relations: ((public.ft2 t1) LEFT JOIN (public.ft2 t2)) LEFT JOIN (public.ft4 t3) Remote SQL: SELECT r1."C 1", r2.c2, r4.c3 FROM (("S 1"."T 1" r1 LEFT JOIN "S 1"."T 1" r2 ON (((r1."C 1" = r2."C 1")))) LEFT JOIN "S 1"."T 3" r4 ON (((r2."C 1" = r4.c1)))) LIMIT 10::bigint OFFSET 10::bigint FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r1."C 1", r2.c2, r4.c3 FROM (("S 1"."T 1" r1 LEFT JOIN "S 1"."T 1" r2 ON (((r1."C 1" = r2."C 1")))) LEFT JOIN "S 1"."T 3" r4 ON (((r2."C 1" = r4.c1)))) LIMIT 10::bigint OFFSET 10::bigint Limit Output: r1."C 1", r2.c2, r4.c3 -> Hash Left Join Output: r1."C 1", r2.c2, r4.c3 Hash Cond: (r2."C 1" = r4.c1) -> Merge Left Join Output: r1."C 1", r2.c2, r2."C 1" Merge Cond: (r1."C 1" = r2."C 1") -> Partition Iterator Output: r1."C 1" Iterations: 2 -> Partitioned Index Only Scan using t1_pkey on "S 1"."T 1" r1 Output: r1."C 1" Selected Partitions: 1..2 -> Materialize Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 -> Partition Iterator Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 Iterations: 2 -> Partitioned Index Scan using t1_pkey on "S 1"."T 1" r2 Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 Selected Partitions: 1..2 -> Hash Output: r4.c3, r4.c1 -> Partition Iterator Output: r4.c3, r4.c1 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" r4 Output: r4.c3, r4.c1 Selected Partitions: 1..2 (39 rows) SELECT t1.c1, t2.c2, t3.c3 FROM ft2 t1 LEFT JOIN ft2 t2 ON (t1.c1 = t2.c1) LEFT JOIN ft4 t3 ON (t2.c1 = t3.c1) OFFSET 10 LIMIT 10; c1 | c2 | c3 ----+----+-------- 11 | 1 | 12 | 2 | AAA012 13 | 3 | 14 | 4 | AAA014 15 | 5 | 16 | 6 | AAA016 17 | 7 | 18 | 8 | AAA018 19 | 9 | 20 | 0 | AAA020 (10 rows) -- left outer join + placement of clauses. -- clauses within the nullable side are not pulled up, but top level clause on -- non-nullable side is pushed into non-nullable side EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t1.c2, t2.c1, t2.c2 FROM ft4 t1 LEFT JOIN (SELECT * FROM ft5 WHERE c1 < 10) t2 ON (t1.c1 = t2.c1) WHERE t1.c1 < 10; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Foreign Scan Output: t1.c1, t1.c2, ft5.c1, ft5.c2 Node ID: 1 Relations: (public.ft4 t1) LEFT JOIN (public.ft5) Remote SQL: SELECT r1.c1, r1.c2, r4.c1, r4.c2 FROM ("S 1"."T 3" r1 LEFT JOIN "S 1"."T 4" r4 ON (((r1.c1 = r4.c1)) AND ((r4.c1 < 10)))) WHERE ((r1.c1 < 10)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r1.c1, r1.c2, r4.c1, r4.c2 FROM ("S 1"."T 3" r1 LEFT JOIN "S 1"."T 4" r4 ON (((r1.c1 = r4.c1)) AND ((r4.c1 < 10)))) WHERE ((r1.c1 < 10)) Hash Left Join Output: r1.c1, r1.c2, r4.c1, r4.c2 Hash Cond: (r1.c1 = r4.c1) -> Partition Iterator Output: r1.c1, r1.c2, r1.c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" r1 Output: r1.c1, r1.c2, r1.c3 Filter: (r1.c1 < 10) Selected Partitions: 1..2 -> Hash Output: r4.c1, r4.c2 -> Partition Iterator Output: r4.c1, r4.c2 Iterations: 1, Sub Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 4" r4 Output: r4.c1, r4.c2 Filter: (r4.c1 < 10) Selected Partitions: 1 Selected Subpartitions: ALL (29 rows) SELECT t1.c1, t1.c2, t2.c1, t2.c2 FROM ft4 t1 LEFT JOIN (SELECT * FROM ft5 WHERE c1 < 10) t2 ON (t1.c1 = t2.c1) WHERE t1.c1 < 10; c1 | c2 | c1 | c2 ----+----+----+---- 4 | 5 | | 2 | 3 | | 6 | 7 | 6 | 7 8 | 9 | | (4 rows) -- clauses within the nullable side are not pulled up, but the top level clause -- on nullable side is not pushed down into nullable side EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t1.c2, t2.c1, t2.c2 FROM ft4 t1 LEFT JOIN (SELECT * FROM ft5 WHERE c1 < 10) t2 ON (t1.c1 = t2.c1) WHERE (t2.c1 < 10 OR t2.c1 IS NULL) AND t1.c1 < 10; QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: t1.c1, t1.c2, ft5.c1, ft5.c2 Node ID: 1 Relations: (public.ft4 t1) LEFT JOIN (public.ft5) Remote SQL: SELECT r1.c1, r1.c2, r4.c1, r4.c2 FROM ("S 1"."T 3" r1 LEFT JOIN "S 1"."T 4" r4 ON (((r1.c1 = r4.c1)) AND ((r4.c1 < 10)))) WHERE (((r4.c1 < 10) OR (r4.c1 IS NULL))) AND ((r1.c1 < 10)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r1.c1, r1.c2, r4.c1, r4.c2 FROM ("S 1"."T 3" r1 LEFT JOIN "S 1"."T 4" r4 ON (((r1.c1 = r4.c1)) AND ((r4.c1 < 10)))) WHERE (((r4.c1 < 10) OR (r4.c1 IS NULL))) AND ((r1.c1 < 10)) Hash Left Join Output: r1.c1, r1.c2, r4.c1, r4.c2 Hash Cond: (r1.c1 = r4.c1) Filter: ((r4.c1 < 10) OR (r4.c1 IS NULL)) -> Partition Iterator Output: r1.c1, r1.c2, r1.c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" r1 Output: r1.c1, r1.c2, r1.c3 Filter: (r1.c1 < 10) Selected Partitions: 1..2 -> Hash Output: r4.c1, r4.c2 -> Partition Iterator Output: r4.c1, r4.c2 Iterations: 1, Sub Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 4" r4 Output: r4.c1, r4.c2 Filter: (r4.c1 < 10) Selected Partitions: 1 Selected Subpartitions: ALL (30 rows) SELECT t1.c1, t1.c2, t2.c1, t2.c2 FROM ft4 t1 LEFT JOIN (SELECT * FROM ft5 WHERE c1 < 10) t2 ON (t1.c1 = t2.c1) WHERE (t2.c1 < 10 OR t2.c1 IS NULL) AND t1.c1 < 10; c1 | c2 | c1 | c2 ----+----+----+---- 4 | 5 | | 2 | 3 | | 6 | 7 | 6 | 7 8 | 9 | | (4 rows) -- right outer join EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c1 FROM ft5 t1 RIGHT JOIN ft4 t2 ON (t1.c1 = t2.c1) ORDER BY t2.c1, t1.c1 OFFSET 10 LIMIT 10; QUERY PLAN --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: t1.c1, t2.c1 Node ID: 1 Relations: (public.ft4 t2) LEFT JOIN (public.ft5 t1) Remote SQL: SELECT r1.c1, r2.c1 FROM ("S 1"."T 3" r2 LEFT JOIN "S 1"."T 4" r1 ON (((r1.c1 = r2.c1)))) ORDER BY r2.c1 ASC NULLS LAST, r1.c1 ASC NULLS LAST LIMIT 10::bigint OFFSET 10::bigint FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r1.c1, r2.c1 FROM ("S 1"."T 3" r2 LEFT JOIN "S 1"."T 4" r1 ON (((r1.c1 = r2.c1)))) ORDER BY r2.c1 ASC NULLS LAST, r1.c1 ASC NULLS LAST LIMIT 10::bigint OFFSET 10::bigint Limit Output: r1.c1, r2.c1 -> Sort Output: r1.c1, r2.c1 Sort Key: r2.c1, r1.c1 -> Hash Left Join Output: r1.c1, r2.c1 Hash Cond: (r2.c1 = r1.c1) -> Partition Iterator Output: r2.c1, r2.c2, r2.c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" r2 Output: r2.c1, r2.c2, r2.c3 Selected Partitions: 1..2 -> Hash Output: r1.c1 -> Partition Iterator Output: r1.c1 Iterations: 2, Sub Iterations: 4 -> Partitioned Seq Scan on "S 1"."T 4" r1 Output: r1.c1 Selected Partitions: 1..2 Selected Subpartitions: ALL (32 rows) SELECT t1.c1, t2.c1 FROM ft5 t1 RIGHT JOIN ft4 t2 ON (t1.c1 = t2.c1) ORDER BY t2.c1, t1.c1 OFFSET 10 LIMIT 10; c1 | c1 ----+---- | 22 24 | 24 | 26 | 28 30 | 30 | 32 | 34 36 | 36 | 38 | 40 (10 rows) -- right outer join three tables EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c2, t3.c3 FROM ft2 t1 RIGHT JOIN ft2 t2 ON (t1.c1 = t2.c1) RIGHT JOIN ft4 t3 ON (t2.c1 = t3.c1) OFFSET 10 LIMIT 10; QUERY PLAN -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: t1.c1, t2.c2, t3.c3 Node ID: 1 Relations: ((public.ft4 t3) LEFT JOIN (public.ft2 t2)) LEFT JOIN (public.ft2 t1) Remote SQL: SELECT r1."C 1", r2.c2, r4.c3 FROM (("S 1"."T 3" r4 LEFT JOIN "S 1"."T 1" r2 ON (((r2."C 1" = r4.c1)))) LEFT JOIN "S 1"."T 1" r1 ON (((r1."C 1" = r2."C 1")))) LIMIT 10::bigint OFFSET 10::bigint FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r1."C 1", r2.c2, r4.c3 FROM (("S 1"."T 3" r4 LEFT JOIN "S 1"."T 1" r2 ON (((r2."C 1" = r4.c1)))) LEFT JOIN "S 1"."T 1" r1 ON (((r1."C 1" = r2."C 1")))) LIMIT 10::bigint OFFSET 10::bigint Limit Output: r1."C 1", r2.c2, r4.c3 -> Merge Right Join Output: r1."C 1", r2.c2, r4.c3 Merge Cond: (r2."C 1" = r4.c1) -> Merge Left Join Output: r2.c2, r2."C 1", r1."C 1" Merge Cond: (r2."C 1" = r1."C 1") -> Partition Iterator Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 Iterations: 2 -> Partitioned Index Scan using t1_pkey on "S 1"."T 1" r2 Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 Selected Partitions: 1..2 -> Materialize Output: r1."C 1" -> Partition Iterator Output: r1."C 1" Iterations: 2 -> Partitioned Index Only Scan using t1_pkey on "S 1"."T 1" r1 Output: r1."C 1" Selected Partitions: 1..2 -> Sort Output: r4.c3, r4.c1 Sort Key: r4.c1 -> Partition Iterator Output: r4.c3, r4.c1 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" r4 Output: r4.c3, r4.c1 Selected Partitions: 1..2 (40 rows) SELECT t1.c1, t2.c2, t3.c3 FROM ft2 t1 RIGHT JOIN ft2 t2 ON (t1.c1 = t2.c1) RIGHT JOIN ft4 t3 ON (t2.c1 = t3.c1) OFFSET 10 LIMIT 10; c1 | c2 | c3 ----+----+-------- 22 | 2 | AAA022 24 | 4 | AAA024 26 | 6 | AAA026 28 | 8 | AAA028 30 | 0 | AAA030 32 | 2 | AAA032 34 | 4 | AAA034 36 | 6 | AAA036 38 | 8 | AAA038 40 | 0 | AAA040 (10 rows) -- full outer join EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c1 FROM ft4 t1 FULL JOIN ft5 t2 ON (t1.c1 = t2.c1) ORDER BY t1.c1, t2.c1 OFFSET 45 LIMIT 10; QUERY PLAN --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: t1.c1, t2.c1 Node ID: 1 Relations: (public.ft4 t1) FULL JOIN (public.ft5 t2) Remote SQL: SELECT r1.c1, r2.c1 FROM ("S 1"."T 3" r1 FULL JOIN "S 1"."T 4" r2 ON (((r1.c1 = r2.c1)))) ORDER BY r1.c1 ASC NULLS LAST, r2.c1 ASC NULLS LAST LIMIT 10::bigint OFFSET 45::bigint FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r1.c1, r2.c1 FROM ("S 1"."T 3" r1 FULL JOIN "S 1"."T 4" r2 ON (((r1.c1 = r2.c1)))) ORDER BY r1.c1 ASC NULLS LAST, r2.c1 ASC NULLS LAST LIMIT 10::bigint OFFSET 45::bigint Limit Output: r1.c1, r2.c1 -> Sort Output: r1.c1, r2.c1 Sort Key: r1.c1, r2.c1 -> Hash Full Join Output: r1.c1, r2.c1 Hash Cond: (r1.c1 = r2.c1) -> Partition Iterator Output: r1.c1, r1.c2, r1.c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" r1 Output: r1.c1, r1.c2, r1.c3 Selected Partitions: 1..2 -> Hash Output: r2.c1 -> Partition Iterator Output: r2.c1 Iterations: 2, Sub Iterations: 4 -> Partitioned Seq Scan on "S 1"."T 4" r2 Output: r2.c1 Selected Partitions: 1..2 Selected Subpartitions: ALL (32 rows) SELECT t1.c1, t2.c1 FROM ft4 t1 FULL JOIN ft5 t2 ON (t1.c1 = t2.c1) ORDER BY t1.c1, t2.c1 OFFSET 45 LIMIT 10; c1 | c1 -----+---- 92 | 94 | 96 | 96 98 | 100 | | 3 | 9 | 15 | 21 | 27 (10 rows) -- full outer join with restrictions on the joining relations -- a. the joining relations are both base relations EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c1 FROM (SELECT c1 FROM ft4 WHERE c1 between 50 and 60) t1 FULL JOIN (SELECT c1 FROM ft5 WHERE c1 between 50 and 60) t2 ON (t1.c1 = t2.c1) ORDER BY t1.c1, t2.c1; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Sort Output: ft4.c1, ft5.c1 Sort Key: ft4.c1, ft5.c1 -> Foreign Scan Output: ft4.c1, ft5.c1 Node ID: 1 Relations: (public.ft4) FULL JOIN (public.ft5) Remote SQL: SELECT s4.c1, s5.c1 FROM ((SELECT c1 FROM "S 1"."T 3" WHERE ((c1 >= 50)) AND ((c1 <= 60))) s4(c1) FULL JOIN (SELECT c1 FROM "S 1"."T 4" WHERE ((c1 >= 50)) AND ((c1 <= 60))) s5(c1) ON (((s4.c1 = s5.c1)))) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT s4.c1, s5.c1 FROM ((SELECT c1 FROM "S 1"."T 3" WHERE ((c1 >= 50)) AND ((c1 <= 60))) s4(c1) FULL JOIN (SELECT c1 FROM "S 1"."T 4" WHERE ((c1 >= 50)) AND ((c1 <= 60))) s5(c1) ON (((s4.c1 = s5.c1)))) Hash Full Join Output: "T 3".c1, "T 4".c1 Hash Cond: ("T 3".c1 = "T 4".c1) -> Partition Iterator Output: "T 3".c1, "T 3".c2, "T 3".c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" Output: "T 3".c1, "T 3".c2, "T 3".c3 Filter: (("T 3".c1 >= 50) AND ("T 3".c1 <= 60)) Selected Partitions: 1..2 -> Hash Output: "T 4".c1 -> Partition Iterator Output: "T 4".c1 Iterations: 1, Sub Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 4" Output: "T 4".c1 Filter: (("T 4".c1 >= 50) AND ("T 4".c1 <= 60)) Selected Partitions: 2 Selected Subpartitions: ALL (32 rows) SELECT t1.c1, t2.c1 FROM (SELECT c1 FROM ft4 WHERE c1 between 50 and 60) t1 FULL JOIN (SELECT c1 FROM ft5 WHERE c1 between 50 and 60) t2 ON (t1.c1 = t2.c1) ORDER BY t1.c1, t2.c1; c1 | c1 ----+---- 50 | 52 | 54 | 54 56 | 58 | 60 | 60 | 51 | 57 (8 rows) EXPLAIN (VERBOSE, COSTS OFF) SELECT 1 FROM (SELECT c1 FROM ft4 WHERE c1 between 50 and 60) t1 FULL JOIN (SELECT c1 FROM ft5 WHERE c1 between 50 and 60) t2 ON (TRUE) OFFSET 10 LIMIT 10; QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: 1 Node ID: 1 Relations: (public.ft4) FULL JOIN (public.ft5) Remote SQL: SELECT NULL FROM ((SELECT NULL FROM "S 1"."T 3" WHERE ((c1 >= 50)) AND ((c1 <= 60))) s4 FULL JOIN (SELECT NULL FROM "S 1"."T 4" WHERE ((c1 >= 50)) AND ((c1 <= 60))) s5 ON (TRUE)) LIMIT 10::bigint OFFSET 10::bigint FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT NULL FROM ((SELECT NULL FROM "S 1"."T 3" WHERE ((c1 >= 50)) AND ((c1 <= 60))) s4 FULL JOIN (SELECT NULL FROM "S 1"."T 4" WHERE ((c1 >= 50)) AND ((c1 <= 60))) s5 ON (TRUE)) LIMIT 10::bigint OFFSET 10::bigint Limit Output: (NULL::text) -> Subquery Scan on subquery Output: NULL::text -> Result Output: (NULL::text), (NULL::text) -> Append -> Nested Loop Left Join Output: (NULL::text), (NULL::text) -> Partition Iterator Output: NULL::text Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" Output: NULL::text Filter: (("S 1"."T 3".c1 >= 50) AND ("S 1"."T 3".c1 <= 60)) Selected Partitions: 1..2 -> Materialize Output: (NULL::text) -> Partition Iterator Output: NULL::text Iterations: 1, Sub Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 4" Output: NULL::text Filter: (("S 1"."T 4".c1 >= 50) AND ("S 1"."T 4".c1 <= 60)) Selected Partitions: 2 Selected Subpartitions: ALL -> Nested Loop Left Anti Full Join Output: (NULL::text), (NULL::text) -> Partition Iterator Output: NULL::text Iterations: 1, Sub Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 4" Output: NULL::text Filter: (("S 1"."T 4".c1 >= 50) AND ("S 1"."T 4".c1 <= 60)) Selected Partitions: 2 Selected Subpartitions: ALL -> Materialize Output: (NULL::text) -> Partition Iterator Output: NULL::text Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" Output: NULL::text Filter: (("S 1"."T 3".c1 >= 50) AND ("S 1"."T 3".c1 <= 60)) Selected Partitions: 1..2 (54 rows) SELECT 1 FROM (SELECT c1 FROM ft4 WHERE c1 between 50 and 60) t1 FULL JOIN (SELECT c1 FROM ft5 WHERE c1 between 50 and 60) t2 ON (TRUE) OFFSET 10 LIMIT 10; ?column? ---------- 1 1 1 1 1 1 1 1 1 1 (10 rows) EXPLAIN (VERBOSE, COSTS OFF) SELECT count(*) FROM (SELECT c1 FROM ft4 WHERE c1 between 50 and 60) t1 FULL JOIN (SELECT c1 FROM ft5 WHERE c1 between 50 and 60) t2 ON (TRUE) OFFSET 10 LIMIT 2; QUERY PLAN ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Limit Output: (count(*)) -> Aggregate Output: count(*) -> Foreign Scan Node ID: 1 Relations: (public.ft4) FULL JOIN (public.ft5) Remote SQL: SELECT NULL FROM ((SELECT NULL FROM "S 1"."T 3" WHERE ((c1 >= 50)) AND ((c1 <= 60))) s4 FULL JOIN (SELECT NULL FROM "S 1"."T 4" WHERE ((c1 >= 50)) AND ((c1 <= 60))) s5 ON (TRUE)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT NULL FROM ((SELECT NULL FROM "S 1"."T 3" WHERE ((c1 >= 50)) AND ((c1 <= 60))) s4 FULL JOIN (SELECT NULL FROM "S 1"."T 4" WHERE ((c1 >= 50)) AND ((c1 <= 60))) s5 ON (TRUE)) Subquery Scan on subquery Output: NULL::text -> Result Output: (NULL::text), (NULL::text) -> Append -> Nested Loop Left Join Output: (NULL::text), (NULL::text) -> Partition Iterator Output: NULL::text Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" Output: NULL::text Filter: (("S 1"."T 3".c1 >= 50) AND ("S 1"."T 3".c1 <= 60)) Selected Partitions: 1..2 -> Materialize Output: (NULL::text) -> Partition Iterator Output: NULL::text Iterations: 1, Sub Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 4" Output: NULL::text Filter: (("S 1"."T 4".c1 >= 50) AND ("S 1"."T 4".c1 <= 60)) Selected Partitions: 2 Selected Subpartitions: ALL -> Nested Loop Left Anti Full Join Output: (NULL::text), (NULL::text) -> Partition Iterator Output: NULL::text Iterations: 1, Sub Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 4" Output: NULL::text Filter: (("S 1"."T 4".c1 >= 50) AND ("S 1"."T 4".c1 <= 60)) Selected Partitions: 2 Selected Subpartitions: ALL -> Materialize Output: (NULL::text) -> Partition Iterator Output: NULL::text Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" Output: NULL::text Filter: (("S 1"."T 3".c1 >= 50) AND ("S 1"."T 3".c1 <= 60)) Selected Partitions: 1..2 (55 rows) SELECT count(*) FROM (SELECT c1 FROM ft4 WHERE c1 between 50 and 60) t1 FULL JOIN (SELECT c1 FROM ft5 WHERE c1 between 50 and 60) t2 ON (TRUE) OFFSET 10 LIMIT 2; count ------- (0 rows) -- b. one of the joining relations is a base relation and the other is a join -- relation EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, ss.a, ss.b FROM (SELECT c1 FROM ft4 WHERE c1 between 50 and 60) t1 FULL JOIN (SELECT t2.c1, t3.c1 FROM ft4 t2 LEFT JOIN ft5 t3 ON (t2.c1 = t3.c1) WHERE (t2.c1 between 50 and 60)) ss(a, b) ON (t1.c1 = ss.a) ORDER BY t1.c1, ss.a, ss.b; QUERY PLAN -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Sort Output: ft4.c1, t2.c1, t3.c1 Sort Key: ft4.c1, t2.c1, t3.c1 -> Foreign Scan Output: ft4.c1, t2.c1, t3.c1 Node ID: 1 Relations: (public.ft4) FULL JOIN ((public.ft4 t2) LEFT JOIN (public.ft5 t3)) Remote SQL: SELECT s4.c1, s8.c1, s8.c2 FROM ((SELECT c1 FROM "S 1"."T 3" WHERE ((c1 >= 50)) AND ((c1 <= 60))) s4(c1) FULL JOIN (SELECT r5.c1, r6.c1 FROM ("S 1"."T 3" r5 LEFT JOIN "S 1"."T 4" r6 ON (((r5.c1 = r6.c1)))) WHERE ((r5.c1 >= 50)) AND ((r5.c1 <= 60))) s8(c1, c2) ON (((s4.c1 = s8.c1)))) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT s4.c1, s8.c1, s8.c2 FROM ((SELECT c1 FROM "S 1"."T 3" WHERE ((c1 >= 50)) AND ((c1 <= 60))) s4(c1) FULL JOIN (SELECT r5.c1, r6.c1 FROM ("S 1"."T 3" r5 LEFT JOIN "S 1"."T 4" r6 ON (((r5.c1 = r6.c1)))) WHERE ((r5.c1 >= 50)) AND ((r5.c1 <= 60))) s8(c1, c2) ON (((s4.c1 = s8.c1)))) Hash Full Join Output: "T 3".c1, r5.c1, r6.c1 Hash Cond: (r5.c1 = "T 3".c1) -> Hash Right Join Output: r5.c1, r6.c1 Hash Cond: (r6.c1 = r5.c1) -> Partition Iterator Output: r6.c1, r6.c2, r6.c3 Iterations: 2, Sub Iterations: 4 -> Partitioned Seq Scan on "S 1"."T 4" r6 Output: r6.c1, r6.c2, r6.c3 Selected Partitions: 1..2 Selected Subpartitions: ALL -> Hash Output: r5.c1 -> Partition Iterator Output: r5.c1 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" r5 Output: r5.c1 Filter: ((r5.c1 >= 50) AND (r5.c1 <= 60)) Selected Partitions: 1..2 -> Hash Output: "T 3".c1 -> Partition Iterator Output: "T 3".c1 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" Output: "T 3".c1 Filter: (("T 3".c1 >= 50) AND ("T 3".c1 <= 60)) Selected Partitions: 1..2 (43 rows) SELECT t1.c1, ss.a, ss.b FROM (SELECT c1 FROM ft4 WHERE c1 between 50 and 60) t1 FULL JOIN (SELECT t2.c1, t3.c1 FROM ft4 t2 LEFT JOIN ft5 t3 ON (t2.c1 = t3.c1) WHERE (t2.c1 between 50 and 60)) ss(a, b) ON (t1.c1 = ss.a) ORDER BY t1.c1, ss.a, ss.b; c1 | a | b ----+----+---- 50 | 50 | 52 | 52 | 54 | 54 | 54 56 | 56 | 58 | 58 | 60 | 60 | 60 (6 rows) -- c. test deparsing the remote query as nested subqueries EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, ss.a, ss.b FROM (SELECT c1 FROM ft4 WHERE c1 between 50 and 60) t1 FULL JOIN (SELECT t2.c1, t3.c1 FROM (SELECT c1 FROM ft4 WHERE c1 between 50 and 60) t2 FULL JOIN (SELECT c1 FROM ft5 WHERE c1 between 50 and 60) t3 ON (t2.c1 = t3.c1) WHERE t2.c1 IS NULL OR t2.c1 IS NOT NULL) ss(a, b) ON (t1.c1 = ss.a) ORDER BY t1.c1, ss.a, ss.b; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Sort Output: public.ft4.c1, public.ft4.c1, ft5.c1 Sort Key: public.ft4.c1, public.ft4.c1, ft5.c1 -> Foreign Scan Output: public.ft4.c1, public.ft4.c1, ft5.c1 Node ID: 1 Relations: (public.ft4) FULL JOIN ((public.ft4) FULL JOIN (public.ft5)) Remote SQL: SELECT s4.c1, s10.c1, s10.c2 FROM ((SELECT c1 FROM "S 1"."T 3" WHERE ((c1 >= 50)) AND ((c1 <= 60))) s4(c1) FULL JOIN (SELECT s8.c1, s9.c1 FROM ((SELECT c1 FROM "S 1"."T 3" WHERE ((c1 >= 50)) AND ((c1 <= 60))) s8(c1) FULL JOIN (SELECT c1 FROM "S 1"."T 4" WHERE ((c1 >= 50)) AND ((c1 <= 60))) s9(c1) ON (((s8.c1 = s9.c1)))) WHERE (((s8.c1 IS NULL) OR (s8.c1 IS NOT NULL)))) s10(c1, c2) ON (((s4.c1 = s10.c1)))) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT s4.c1, s10.c1, s10.c2 FROM ((SELECT c1 FROM "S 1"."T 3" WHERE ((c1 >= 50)) AND ((c1 <= 60))) s4(c1) FULL JOIN (SELECT s8.c1, s9.c1 FROM ((SELECT c1 FROM "S 1"."T 3" WHERE ((c1 >= 50)) AND ((c1 <= 60))) s8(c1) FULL JOIN (SELECT c1 FROM "S 1"."T 4" WHERE ((c1 >= 50)) AND ((c1 <= 60))) s9(c1) ON (((s8.c1 = s9.c1)))) WHERE (((s8.c1 IS NULL) OR (s8.c1 IS NOT NULL)))) s10(c1, c2) ON (((s4.c1 = s10.c1)))) Hash Full Join Output: "S 1"."T 3".c1, "S 1"."T 3".c1, "T 4".c1 Hash Cond: ("S 1"."T 3".c1 = "S 1"."T 3".c1) -> Partition Iterator Output: "S 1"."T 3".c1, "S 1"."T 3".c2, "S 1"."T 3".c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" Output: "S 1"."T 3".c1, "S 1"."T 3".c2, "S 1"."T 3".c3 Filter: (("S 1"."T 3".c1 >= 50) AND ("S 1"."T 3".c1 <= 60)) Selected Partitions: 1..2 -> Hash Output: "S 1"."T 3".c1, "T 4".c1 -> Hash Full Join Output: "S 1"."T 3".c1, "T 4".c1 Hash Cond: ("S 1"."T 3".c1 = "T 4".c1) Filter: (("S 1"."T 3".c1 IS NULL) OR ("S 1"."T 3".c1 IS NOT NULL)) -> Partition Iterator Output: "S 1"."T 3".c1, "S 1"."T 3".c2, "S 1"."T 3".c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" Output: "S 1"."T 3".c1, "S 1"."T 3".c2, "S 1"."T 3".c3 Filter: (("S 1"."T 3".c1 >= 50) AND ("S 1"."T 3".c1 <= 60)) Selected Partitions: 1..2 -> Hash Output: "T 4".c1 -> Partition Iterator Output: "T 4".c1 Iterations: 1, Sub Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 4" Output: "T 4".c1 Filter: (("T 4".c1 >= 50) AND ("T 4".c1 <= 60)) Selected Partitions: 2 Selected Subpartitions: ALL (45 rows) SELECT t1.c1, ss.a, ss.b FROM (SELECT c1 FROM ft4 WHERE c1 between 50 and 60) t1 FULL JOIN (SELECT t2.c1, t3.c1 FROM (SELECT c1 FROM ft4 WHERE c1 between 50 and 60) t2 FULL JOIN (SELECT c1 FROM ft5 WHERE c1 between 50 and 60) t3 ON (t2.c1 = t3.c1) WHERE t2.c1 IS NULL OR t2.c1 IS NOT NULL) ss(a, b) ON (t1.c1 = ss.a) ORDER BY t1.c1, ss.a, ss.b; c1 | a | b ----+----+---- 50 | 50 | 52 | 52 | 54 | 54 | 54 56 | 56 | 58 | 58 | 60 | 60 | 60 | | 51 | | 57 (8 rows) -- d. test deparsing rowmarked relations as subqueries EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, ss.a, ss.b FROM (SELECT c1 FROM "S 1"."T 3" WHERE c1 = 50) t1 INNER JOIN (SELECT t2.c1, t3.c1 FROM (SELECT c1 FROM ft4 WHERE c1 between 50 and 60) t2 FULL JOIN (SELECT c1 FROM ft5 WHERE c1 between 50 and 60) t3 ON (t2.c1 = t3.c1) WHERE t2.c1 IS NULL OR t2.c1 IS NOT NULL) ss(a, b) ON (TRUE) ORDER BY t1.c1, ss.a, ss.b FOR UPDATE OF t1; QUERY PLAN -------------------------------------------------------------------------------------------------------------------- Sort Output: "T 3".c1, ft4.c1, ft5.c1, "T 3".ctid, "T 3".tableoid, ft4.*, ft5.* Sort Key: ft4.c1, ft5.c1 -> LockRows Output: "T 3".c1, ft4.c1, ft5.c1, "T 3".ctid, "T 3".tableoid, ft4.*, ft5.* -> Nested Loop Output: "T 3".c1, ft4.c1, ft5.c1, "T 3".ctid, "T 3".tableoid, ft4.*, ft5.* -> Partitioned Index Scan using t3_pkey on "S 1"."T 3" Output: "T 3".c1, "T 3".ctid, "T 3".tableoid Index Cond: ("T 3".c1 = 50) Selected Partitions: 2 -> Hash Full Join Output: ft4.c1, ft4.*, ft5.c1, ft5.* Hash Cond: (ft4.c1 = ft5.c1) Filter: ((ft4.c1 IS NULL) OR (ft4.c1 IS NOT NULL)) -> Foreign Scan on public.ft4 Output: ft4.c1, ft4.* Node ID: 1 Remote SQL: SELECT c1, c2, c3 FROM "S 1"."T 3" WHERE ((c1 >= 50)) AND ((c1 <= 60)) -> Hash Output: ft5.c1, ft5.* -> Foreign Scan on public.ft5 Output: ft5.c1, ft5.* Node ID: 2 Remote SQL: SELECT c1, c2, c3 FROM "S 1"."T 4" WHERE ((c1 >= 50)) AND ((c1 <= 60)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c1, c2, c3 FROM "S 1"."T 3" WHERE ((c1 >= 50)) AND ((c1 <= 60)) Partition Iterator Output: c1, c2, c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" Output: c1, c2, c3 Filter: (("T 3".c1 >= 50) AND ("T 3".c1 <= 60)) Selected Partitions: 1..2 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c1, c2, c3 FROM "S 1"."T 4" WHERE ((c1 >= 50)) AND ((c1 <= 60)) Partition Iterator Output: c1, c2, c3 Iterations: 1, Sub Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 4" Output: c1, c2, c3 Filter: (("T 4".c1 >= 50) AND ("T 4".c1 <= 60)) Selected Partitions: 2 Selected Subpartitions: ALL (45 rows) SELECT t1.c1, ss.a, ss.b FROM (SELECT c1 FROM "S 1"."T 3" WHERE c1 = 50) t1 INNER JOIN (SELECT t2.c1, t3.c1 FROM (SELECT c1 FROM ft4 WHERE c1 between 50 and 60) t2 FULL JOIN (SELECT c1 FROM ft5 WHERE c1 between 50 and 60) t3 ON (t2.c1 = t3.c1) WHERE t2.c1 IS NULL OR t2.c1 IS NOT NULL) ss(a, b) ON (TRUE) ORDER BY t1.c1, ss.a, ss.b FOR UPDATE OF t1; c1 | a | b ----+----+---- 50 | 50 | 50 | 52 | 50 | 54 | 54 50 | 56 | 50 | 58 | 50 | 60 | 60 50 | | 51 50 | | 57 (8 rows) -- full outer join + inner join EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c1, t3.c1 FROM ft4 t1 INNER JOIN ft5 t2 ON (t1.c1 = t2.c1 + 1 and t1.c1 between 50 and 60) FULL JOIN ft4 t3 ON (t2.c1 = t3.c1) ORDER BY t1.c1, t2.c1, t3.c1 LIMIT 10; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: t1.c1, t2.c1, t3.c1 Node ID: 1 Relations: ((public.ft4 t1) INNER JOIN (public.ft5 t2)) FULL JOIN (public.ft4 t3) Remote SQL: SELECT r1.c1, r2.c1, r4.c1 FROM (("S 1"."T 3" r1 INNER JOIN "S 1"."T 4" r2 ON (((r1.c1 = (r2.c1 + 1))) AND (((r2.c1 + 1) >= 50)) AND (((r2.c1 + 1) <= 60)) AND ((r1.c1 >= 50)) AND ((r1.c1 <= 60)))) FULL JOIN "S 1"."T 3" r4 ON (((r2.c1 = r4.c1)))) ORDER BY r1.c1 ASC NULLS LAST, r2.c1 ASC NULLS LAST, r4.c1 ASC NULLS LAST LIMIT 10::bigint FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r1.c1, r2.c1, r4.c1 FROM (("S 1"."T 3" r1 INNER JOIN "S 1"."T 4" r2 ON (((r1.c1 = (r2.c1 + 1))) AND (((r2.c1 + 1) >= 50)) AND (((r2.c1 + 1) <= 60)) AND ((r1.c1 >= 50)) AND ((r1.c1 <= 60)))) FULL JOIN "S 1"."T 3" r4 ON (((r2.c1 = r4.c1)))) ORDER BY r1.c1 ASC NULLS LAST, r2.c1 ASC NULLS LAST, r4.c1 ASC NULLS LAST LIMIT 10::bigint Limit Output: r1.c1, r2.c1, r4.c1 -> Sort Output: r1.c1, r2.c1, r4.c1 Sort Key: r1.c1, r2.c1, r4.c1 -> Hash Full Join Output: r1.c1, r2.c1, r4.c1 Hash Cond: (r4.c1 = r2.c1) -> Partition Iterator Output: r4.c1, r4.c2, r4.c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" r4 Output: r4.c1, r4.c2, r4.c3 Selected Partitions: 1..2 -> Hash Output: r1.c1, r2.c1 -> Nested Loop Output: r1.c1, r2.c1 Join Filter: (r1.c1 = (r2.c1 + 1)) -> Partition Iterator Output: r2.c1, r2.c2, r2.c3 Iterations: 2, Sub Iterations: 4 -> Partitioned Seq Scan on "S 1"."T 4" r2 Output: r2.c1, r2.c2, r2.c3 Filter: (((r2.c1 + 1) >= 50) AND ((r2.c1 + 1) <= 60)) Selected Partitions: 1..2 Selected Subpartitions: ALL -> Partition Iterator Output: r1.c1, r1.c2, r1.c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" r1 Output: r1.c1, r1.c2, r1.c3 Filter: ((r1.c1 >= 50) AND (r1.c1 <= 60)) Selected Partitions: 1..2 (43 rows) SELECT t1.c1, t2.c1, t3.c1 FROM ft4 t1 INNER JOIN ft5 t2 ON (t1.c1 = t2.c1 + 1 and t1.c1 between 50 and 60) FULL JOIN ft4 t3 ON (t2.c1 = t3.c1) ORDER BY t1.c1, t2.c1, t3.c1 LIMIT 10; c1 | c1 | c1 ----+----+---- 52 | 51 | 58 | 57 | | | 2 | | 4 | | 6 | | 8 | | 10 | | 12 | | 14 | | 16 (10 rows) -- full outer join three tables EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c2, t3.c3 FROM ft2 t1 FULL JOIN ft2 t2 ON (t1.c1 = t2.c1) FULL JOIN ft4 t3 ON (t2.c1 = t3.c1) OFFSET 10 LIMIT 10; QUERY PLAN -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: t1.c1, t2.c2, t3.c3 Node ID: 1 Relations: ((public.ft2 t1) FULL JOIN (public.ft2 t2)) FULL JOIN (public.ft4 t3) Remote SQL: SELECT r1."C 1", r2.c2, r4.c3 FROM (("S 1"."T 1" r1 FULL JOIN "S 1"."T 1" r2 ON (((r1."C 1" = r2."C 1")))) FULL JOIN "S 1"."T 3" r4 ON (((r2."C 1" = r4.c1)))) LIMIT 10::bigint OFFSET 10::bigint FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r1."C 1", r2.c2, r4.c3 FROM (("S 1"."T 1" r1 FULL JOIN "S 1"."T 1" r2 ON (((r1."C 1" = r2."C 1")))) FULL JOIN "S 1"."T 3" r4 ON (((r2."C 1" = r4.c1)))) LIMIT 10::bigint OFFSET 10::bigint Limit Output: r1."C 1", r2.c2, r4.c3 -> Hash Full Join Output: r1."C 1", r2.c2, r4.c3 Hash Cond: (r2."C 1" = r4.c1) -> Merge Full Join Output: r1."C 1", r2.c2, r2."C 1" Merge Cond: (r1."C 1" = r2."C 1") -> Partition Iterator Output: r1."C 1" Iterations: 2 -> Partitioned Index Only Scan using t1_pkey on "S 1"."T 1" r1 Output: r1."C 1" Selected Partitions: 1..2 -> Materialize Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 -> Partition Iterator Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 Iterations: 2 -> Partitioned Index Scan using t1_pkey on "S 1"."T 1" r2 Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 Selected Partitions: 1..2 -> Hash Output: r4.c3, r4.c1 -> Partition Iterator Output: r4.c3, r4.c1 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" r4 Output: r4.c3, r4.c1 Selected Partitions: 1..2 (39 rows) SELECT t1.c1, t2.c2, t3.c3 FROM ft2 t1 FULL JOIN ft2 t2 ON (t1.c1 = t2.c1) FULL JOIN ft4 t3 ON (t2.c1 = t3.c1) OFFSET 10 LIMIT 10; c1 | c2 | c3 ----+----+-------- 11 | 1 | 12 | 2 | AAA012 13 | 3 | 14 | 4 | AAA014 15 | 5 | 16 | 6 | AAA016 17 | 7 | 18 | 8 | AAA018 19 | 9 | 20 | 0 | AAA020 (10 rows) -- full outer join + right outer join EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c2, t3.c3 FROM ft2 t1 FULL JOIN ft2 t2 ON (t1.c1 = t2.c1) RIGHT JOIN ft4 t3 ON (t2.c1 = t3.c1) OFFSET 10 LIMIT 10; QUERY PLAN -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: t1.c1, t2.c2, t3.c3 Node ID: 1 Relations: ((public.ft4 t3) LEFT JOIN (public.ft2 t2)) LEFT JOIN (public.ft2 t1) Remote SQL: SELECT r1."C 1", r2.c2, r4.c3 FROM (("S 1"."T 3" r4 LEFT JOIN "S 1"."T 1" r2 ON (((r2."C 1" = r4.c1)))) LEFT JOIN "S 1"."T 1" r1 ON (((r1."C 1" = r2."C 1")))) LIMIT 10::bigint OFFSET 10::bigint FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r1."C 1", r2.c2, r4.c3 FROM (("S 1"."T 3" r4 LEFT JOIN "S 1"."T 1" r2 ON (((r2."C 1" = r4.c1)))) LEFT JOIN "S 1"."T 1" r1 ON (((r1."C 1" = r2."C 1")))) LIMIT 10::bigint OFFSET 10::bigint Limit Output: r1."C 1", r2.c2, r4.c3 -> Merge Right Join Output: r1."C 1", r2.c2, r4.c3 Merge Cond: (r2."C 1" = r4.c1) -> Merge Left Join Output: r2.c2, r2."C 1", r1."C 1" Merge Cond: (r2."C 1" = r1."C 1") -> Partition Iterator Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 Iterations: 2 -> Partitioned Index Scan using t1_pkey on "S 1"."T 1" r2 Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 Selected Partitions: 1..2 -> Materialize Output: r1."C 1" -> Partition Iterator Output: r1."C 1" Iterations: 2 -> Partitioned Index Only Scan using t1_pkey on "S 1"."T 1" r1 Output: r1."C 1" Selected Partitions: 1..2 -> Sort Output: r4.c3, r4.c1 Sort Key: r4.c1 -> Partition Iterator Output: r4.c3, r4.c1 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" r4 Output: r4.c3, r4.c1 Selected Partitions: 1..2 (40 rows) SELECT t1.c1, t2.c2, t3.c3 FROM ft2 t1 FULL JOIN ft2 t2 ON (t1.c1 = t2.c1) RIGHT JOIN ft4 t3 ON (t2.c1 = t3.c1) OFFSET 10 LIMIT 10; c1 | c2 | c3 ----+----+-------- 22 | 2 | AAA022 24 | 4 | AAA024 26 | 6 | AAA026 28 | 8 | AAA028 30 | 0 | AAA030 32 | 2 | AAA032 34 | 4 | AAA034 36 | 6 | AAA036 38 | 8 | AAA038 40 | 0 | AAA040 (10 rows) -- right outer join + full outer join EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c2, t3.c3 FROM ft2 t1 RIGHT JOIN ft2 t2 ON (t1.c1 = t2.c1) FULL JOIN ft4 t3 ON (t2.c1 = t3.c1) OFFSET 10 LIMIT 10; QUERY PLAN -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: t1.c1, t2.c2, t3.c3 Node ID: 1 Relations: ((public.ft2 t2) LEFT JOIN (public.ft2 t1)) FULL JOIN (public.ft4 t3) Remote SQL: SELECT r1."C 1", r2.c2, r4.c3 FROM (("S 1"."T 1" r2 LEFT JOIN "S 1"."T 1" r1 ON (((r1."C 1" = r2."C 1")))) FULL JOIN "S 1"."T 3" r4 ON (((r2."C 1" = r4.c1)))) LIMIT 10::bigint OFFSET 10::bigint FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r1."C 1", r2.c2, r4.c3 FROM (("S 1"."T 1" r2 LEFT JOIN "S 1"."T 1" r1 ON (((r1."C 1" = r2."C 1")))) FULL JOIN "S 1"."T 3" r4 ON (((r2."C 1" = r4.c1)))) LIMIT 10::bigint OFFSET 10::bigint Limit Output: r1."C 1", r2.c2, r4.c3 -> Hash Full Join Output: r1."C 1", r2.c2, r4.c3 Hash Cond: (r2."C 1" = r4.c1) -> Merge Left Join Output: r2.c2, r2."C 1", r1."C 1" Merge Cond: (r2."C 1" = r1."C 1") -> Partition Iterator Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 Iterations: 2 -> Partitioned Index Scan using t1_pkey on "S 1"."T 1" r2 Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 Selected Partitions: 1..2 -> Materialize Output: r1."C 1" -> Partition Iterator Output: r1."C 1" Iterations: 2 -> Partitioned Index Only Scan using t1_pkey on "S 1"."T 1" r1 Output: r1."C 1" Selected Partitions: 1..2 -> Hash Output: r4.c3, r4.c1 -> Partition Iterator Output: r4.c3, r4.c1 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" r4 Output: r4.c3, r4.c1 Selected Partitions: 1..2 (39 rows) SELECT t1.c1, t2.c2, t3.c3 FROM ft2 t1 RIGHT JOIN ft2 t2 ON (t1.c1 = t2.c1) FULL JOIN ft4 t3 ON (t2.c1 = t3.c1) OFFSET 10 LIMIT 10; c1 | c2 | c3 ----+----+-------- 11 | 1 | 12 | 2 | AAA012 13 | 3 | 14 | 4 | AAA014 15 | 5 | 16 | 6 | AAA016 17 | 7 | 18 | 8 | AAA018 19 | 9 | 20 | 0 | AAA020 (10 rows) -- full outer join + left outer join EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c2, t3.c3 FROM ft2 t1 FULL JOIN ft2 t2 ON (t1.c1 = t2.c1) LEFT JOIN ft4 t3 ON (t2.c1 = t3.c1) OFFSET 10 LIMIT 10; QUERY PLAN -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: t1.c1, t2.c2, t3.c3 Node ID: 1 Relations: ((public.ft2 t1) FULL JOIN (public.ft2 t2)) LEFT JOIN (public.ft4 t3) Remote SQL: SELECT r1."C 1", r2.c2, r4.c3 FROM (("S 1"."T 1" r1 FULL JOIN "S 1"."T 1" r2 ON (((r1."C 1" = r2."C 1")))) LEFT JOIN "S 1"."T 3" r4 ON (((r2."C 1" = r4.c1)))) LIMIT 10::bigint OFFSET 10::bigint FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r1."C 1", r2.c2, r4.c3 FROM (("S 1"."T 1" r1 FULL JOIN "S 1"."T 1" r2 ON (((r1."C 1" = r2."C 1")))) LEFT JOIN "S 1"."T 3" r4 ON (((r2."C 1" = r4.c1)))) LIMIT 10::bigint OFFSET 10::bigint Limit Output: r1."C 1", r2.c2, r4.c3 -> Hash Left Join Output: r1."C 1", r2.c2, r4.c3 Hash Cond: (r2."C 1" = r4.c1) -> Merge Full Join Output: r1."C 1", r2.c2, r2."C 1" Merge Cond: (r1."C 1" = r2."C 1") -> Partition Iterator Output: r1."C 1" Iterations: 2 -> Partitioned Index Only Scan using t1_pkey on "S 1"."T 1" r1 Output: r1."C 1" Selected Partitions: 1..2 -> Materialize Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 -> Partition Iterator Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 Iterations: 2 -> Partitioned Index Scan using t1_pkey on "S 1"."T 1" r2 Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 Selected Partitions: 1..2 -> Hash Output: r4.c3, r4.c1 -> Partition Iterator Output: r4.c3, r4.c1 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" r4 Output: r4.c3, r4.c1 Selected Partitions: 1..2 (39 rows) SELECT t1.c1, t2.c2, t3.c3 FROM ft2 t1 FULL JOIN ft2 t2 ON (t1.c1 = t2.c1) LEFT JOIN ft4 t3 ON (t2.c1 = t3.c1) OFFSET 10 LIMIT 10; c1 | c2 | c3 ----+----+-------- 11 | 1 | 12 | 2 | AAA012 13 | 3 | 14 | 4 | AAA014 15 | 5 | 16 | 6 | AAA016 17 | 7 | 18 | 8 | AAA018 19 | 9 | 20 | 0 | AAA020 (10 rows) -- left outer join + full outer join EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c2, t3.c3 FROM ft2 t1 LEFT JOIN ft2 t2 ON (t1.c1 = t2.c1) FULL JOIN ft4 t3 ON (t2.c1 = t3.c1) OFFSET 10 LIMIT 10; QUERY PLAN -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: t1.c1, t2.c2, t3.c3 Node ID: 1 Relations: ((public.ft2 t1) LEFT JOIN (public.ft2 t2)) FULL JOIN (public.ft4 t3) Remote SQL: SELECT r1."C 1", r2.c2, r4.c3 FROM (("S 1"."T 1" r1 LEFT JOIN "S 1"."T 1" r2 ON (((r1."C 1" = r2."C 1")))) FULL JOIN "S 1"."T 3" r4 ON (((r2."C 1" = r4.c1)))) LIMIT 10::bigint OFFSET 10::bigint FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r1."C 1", r2.c2, r4.c3 FROM (("S 1"."T 1" r1 LEFT JOIN "S 1"."T 1" r2 ON (((r1."C 1" = r2."C 1")))) FULL JOIN "S 1"."T 3" r4 ON (((r2."C 1" = r4.c1)))) LIMIT 10::bigint OFFSET 10::bigint Limit Output: r1."C 1", r2.c2, r4.c3 -> Hash Full Join Output: r1."C 1", r2.c2, r4.c3 Hash Cond: (r2."C 1" = r4.c1) -> Merge Left Join Output: r1."C 1", r2.c2, r2."C 1" Merge Cond: (r1."C 1" = r2."C 1") -> Partition Iterator Output: r1."C 1" Iterations: 2 -> Partitioned Index Only Scan using t1_pkey on "S 1"."T 1" r1 Output: r1."C 1" Selected Partitions: 1..2 -> Materialize Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 -> Partition Iterator Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 Iterations: 2 -> Partitioned Index Scan using t1_pkey on "S 1"."T 1" r2 Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 Selected Partitions: 1..2 -> Hash Output: r4.c3, r4.c1 -> Partition Iterator Output: r4.c3, r4.c1 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" r4 Output: r4.c3, r4.c1 Selected Partitions: 1..2 (39 rows) SELECT t1.c1, t2.c2, t3.c3 FROM ft2 t1 LEFT JOIN ft2 t2 ON (t1.c1 = t2.c1) FULL JOIN ft4 t3 ON (t2.c1 = t3.c1) OFFSET 10 LIMIT 10; c1 | c2 | c3 ----+----+-------- 11 | 1 | 12 | 2 | AAA012 13 | 3 | 14 | 4 | AAA014 15 | 5 | 16 | 6 | AAA016 17 | 7 | 18 | 8 | AAA018 19 | 9 | 20 | 0 | AAA020 (10 rows) SET enable_memoize TO off; --nspt ERROR: unrecognized configuration parameter "enable_memoize" -- right outer join + left outer join EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c2, t3.c3 FROM ft2 t1 RIGHT JOIN ft2 t2 ON (t1.c1 = t2.c1) LEFT JOIN ft4 t3 ON (t2.c1 = t3.c1) OFFSET 10 LIMIT 10; QUERY PLAN -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: t1.c1, t2.c2, t3.c3 Node ID: 1 Relations: ((public.ft2 t2) LEFT JOIN (public.ft2 t1)) LEFT JOIN (public.ft4 t3) Remote SQL: SELECT r1."C 1", r2.c2, r4.c3 FROM (("S 1"."T 1" r2 LEFT JOIN "S 1"."T 1" r1 ON (((r1."C 1" = r2."C 1")))) LEFT JOIN "S 1"."T 3" r4 ON (((r2."C 1" = r4.c1)))) LIMIT 10::bigint OFFSET 10::bigint FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r1."C 1", r2.c2, r4.c3 FROM (("S 1"."T 1" r2 LEFT JOIN "S 1"."T 1" r1 ON (((r1."C 1" = r2."C 1")))) LEFT JOIN "S 1"."T 3" r4 ON (((r2."C 1" = r4.c1)))) LIMIT 10::bigint OFFSET 10::bigint Limit Output: r1."C 1", r2.c2, r4.c3 -> Hash Left Join Output: r1."C 1", r2.c2, r4.c3 Hash Cond: (r2."C 1" = r4.c1) -> Merge Left Join Output: r2.c2, r2."C 1", r1."C 1" Merge Cond: (r2."C 1" = r1."C 1") -> Partition Iterator Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 Iterations: 2 -> Partitioned Index Scan using t1_pkey on "S 1"."T 1" r2 Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 Selected Partitions: 1..2 -> Materialize Output: r1."C 1" -> Partition Iterator Output: r1."C 1" Iterations: 2 -> Partitioned Index Only Scan using t1_pkey on "S 1"."T 1" r1 Output: r1."C 1" Selected Partitions: 1..2 -> Hash Output: r4.c3, r4.c1 -> Partition Iterator Output: r4.c3, r4.c1 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" r4 Output: r4.c3, r4.c1 Selected Partitions: 1..2 (39 rows) SELECT t1.c1, t2.c2, t3.c3 FROM ft2 t1 RIGHT JOIN ft2 t2 ON (t1.c1 = t2.c1) LEFT JOIN ft4 t3 ON (t2.c1 = t3.c1) OFFSET 10 LIMIT 10; c1 | c2 | c3 ----+----+-------- 11 | 1 | 12 | 2 | AAA012 13 | 3 | 14 | 4 | AAA014 15 | 5 | 16 | 6 | AAA016 17 | 7 | 18 | 8 | AAA018 19 | 9 | 20 | 0 | AAA020 (10 rows) RESET enable_memoize; --nspt ERROR: unrecognized configuration parameter "enable_memoize" -- left outer join + right outer join EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c2, t3.c3 FROM ft2 t1 LEFT JOIN ft2 t2 ON (t1.c1 = t2.c1) RIGHT JOIN ft4 t3 ON (t2.c1 = t3.c1) OFFSET 10 LIMIT 10; QUERY PLAN --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: t1.c1, t2.c2, t3.c3 Node ID: 1 Relations: (public.ft4 t3) LEFT JOIN ((public.ft2 t1) INNER JOIN (public.ft2 t2)) Remote SQL: SELECT r1."C 1", r2.c2, r4.c3 FROM ("S 1"."T 3" r4 LEFT JOIN ("S 1"."T 1" r1 INNER JOIN "S 1"."T 1" r2 ON (((r1."C 1" = r2."C 1")))) ON (((r2."C 1" = r4.c1)))) LIMIT 10::bigint OFFSET 10::bigint FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r1."C 1", r2.c2, r4.c3 FROM ("S 1"."T 3" r4 LEFT JOIN ("S 1"."T 1" r1 INNER JOIN "S 1"."T 1" r2 ON (((r1."C 1" = r2."C 1")))) ON (((r2."C 1" = r4.c1)))) LIMIT 10::bigint OFFSET 10::bigint Limit Output: r1."C 1", r2.c2, r4.c3 -> Merge Right Join Output: r1."C 1", r2.c2, r4.c3 Merge Cond: (r2."C 1" = r4.c1) -> Merge Join Output: r1."C 1", r2.c2, r2."C 1" Merge Cond: (r1."C 1" = r2."C 1") -> Partition Iterator Output: r1."C 1" Iterations: 2 -> Partitioned Index Only Scan using t1_pkey on "S 1"."T 1" r1 Output: r1."C 1" Selected Partitions: 1..2 -> Materialize Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 -> Partition Iterator Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 Iterations: 2 -> Partitioned Index Scan using t1_pkey on "S 1"."T 1" r2 Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 Selected Partitions: 1..2 -> Sort Output: r4.c3, r4.c1 Sort Key: r4.c1 -> Partition Iterator Output: r4.c3, r4.c1 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" r4 Output: r4.c3, r4.c1 Selected Partitions: 1..2 (40 rows) SELECT t1.c1, t2.c2, t3.c3 FROM ft2 t1 LEFT JOIN ft2 t2 ON (t1.c1 = t2.c1) RIGHT JOIN ft4 t3 ON (t2.c1 = t3.c1) OFFSET 10 LIMIT 10; c1 | c2 | c3 ----+----+-------- 22 | 2 | AAA022 24 | 4 | AAA024 26 | 6 | AAA026 28 | 8 | AAA028 30 | 0 | AAA030 32 | 2 | AAA032 34 | 4 | AAA034 36 | 6 | AAA036 38 | 8 | AAA038 40 | 0 | AAA040 (10 rows) -- full outer join + WHERE clause, only matched rows EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c1 FROM ft4 t1 FULL JOIN ft5 t2 ON (t1.c1 = t2.c1) WHERE (t1.c1 = t2.c1 OR t1.c1 IS NULL) ORDER BY t1.c1, t2.c1 OFFSET 10 LIMIT 10; QUERY PLAN --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Limit Output: t1.c1, t2.c1 -> Sort Output: t1.c1, t2.c1 Sort Key: t1.c1, t2.c1 -> Foreign Scan Output: t1.c1, t2.c1 Node ID: 1 Relations: (public.ft4 t1) FULL JOIN (public.ft5 t2) Remote SQL: SELECT r1.c1, r2.c1 FROM ("S 1"."T 3" r1 FULL JOIN "S 1"."T 4" r2 ON (((r1.c1 = r2.c1)))) WHERE (((r1.c1 = r2.c1) OR (r1.c1 IS NULL))) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r1.c1, r2.c1 FROM ("S 1"."T 3" r1 FULL JOIN "S 1"."T 4" r2 ON (((r1.c1 = r2.c1)))) WHERE (((r1.c1 = r2.c1) OR (r1.c1 IS NULL))) Hash Full Join Output: r1.c1, r2.c1 Hash Cond: (r1.c1 = r2.c1) Filter: ((r1.c1 = r2.c1) OR (r1.c1 IS NULL)) -> Partition Iterator Output: r1.c1, r1.c2, r1.c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" r1 Output: r1.c1, r1.c2, r1.c3 Selected Partitions: 1..2 -> Hash Output: r2.c1 -> Partition Iterator Output: r2.c1 Iterations: 2, Sub Iterations: 4 -> Partitioned Seq Scan on "S 1"."T 4" r2 Output: r2.c1 Selected Partitions: 1..2 Selected Subpartitions: ALL (33 rows) SELECT t1.c1, t2.c1 FROM ft4 t1 FULL JOIN ft5 t2 ON (t1.c1 = t2.c1) WHERE (t1.c1 = t2.c1 OR t1.c1 IS NULL) ORDER BY t1.c1, t2.c1 OFFSET 10 LIMIT 10; c1 | c1 ----+---- 66 | 66 72 | 72 78 | 78 84 | 84 90 | 90 96 | 96 | 3 | 9 | 15 | 21 (10 rows) -- full outer join + WHERE clause with shippable extensions set EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c2, t1.c3 FROM ft1 t1 FULL JOIN ft2 t2 ON (t1.c1 = t2.c1) WHERE postgres_fdw_abs(t1.c1) > 0 OFFSET 10 LIMIT 10; QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------------------------- Limit Output: t1.c1, t2.c2, t1.c3 -> Foreign Scan Output: t1.c1, t2.c2, t1.c3 Filter: (postgres_fdw_abs(t1.c1) > 0) Node ID: 1 Relations: (public.ft1 t1) FULL JOIN (public.ft2 t2) Remote SQL: SELECT r1."C 1", r1.c3, r2.c2 FROM ("S 1"."T 1" r1 FULL JOIN "S 1"."T 1" r2 ON (((r1."C 1" = r2."C 1")))) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r1."C 1", r1.c3, r2.c2 FROM ("S 1"."T 1" r1 FULL JOIN "S 1"."T 1" r2 ON (((r1."C 1" = r2."C 1")))) Hash Full Join Output: r1."C 1", r1.c3, r2.c2 Hash Cond: (r1."C 1" = r2."C 1") -> Partition Iterator Output: r1."C 1", r1.c2, r1.c3, r1.c4, r1.c5, r1.c6, r1.c7, r1.c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" r1 Output: r1."C 1", r1.c2, r1.c3, r1.c4, r1.c5, r1.c6, r1.c7, r1.c8 Selected Partitions: 1..2 -> Hash Output: r2.c2, r2."C 1" -> Partition Iterator Output: r2.c2, r2."C 1" Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" r2 Output: r2.c2, r2."C 1" Selected Partitions: 1..2 (29 rows) ALTER SERVER loopback OPTIONS (DROP extensions); --nspt ERROR: option "extensions" not found -- full outer join + WHERE clause with shippable extensions not set EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c2, t1.c3 FROM ft1 t1 FULL JOIN ft2 t2 ON (t1.c1 = t2.c1) WHERE postgres_fdw_abs(t1.c1) > 0 OFFSET 10 LIMIT 10; QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------------------------- Limit Output: t1.c1, t2.c2, t1.c3 -> Foreign Scan Output: t1.c1, t2.c2, t1.c3 Filter: (postgres_fdw_abs(t1.c1) > 0) Node ID: 1 Relations: (public.ft1 t1) FULL JOIN (public.ft2 t2) Remote SQL: SELECT r1."C 1", r1.c3, r2.c2 FROM ("S 1"."T 1" r1 FULL JOIN "S 1"."T 1" r2 ON (((r1."C 1" = r2."C 1")))) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r1."C 1", r1.c3, r2.c2 FROM ("S 1"."T 1" r1 FULL JOIN "S 1"."T 1" r2 ON (((r1."C 1" = r2."C 1")))) Hash Full Join Output: r1."C 1", r1.c3, r2.c2 Hash Cond: (r1."C 1" = r2."C 1") -> Partition Iterator Output: r1."C 1", r1.c2, r1.c3, r1.c4, r1.c5, r1.c6, r1.c7, r1.c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" r1 Output: r1."C 1", r1.c2, r1.c3, r1.c4, r1.c5, r1.c6, r1.c7, r1.c8 Selected Partitions: 1..2 -> Hash Output: r2.c2, r2."C 1" -> Partition Iterator Output: r2.c2, r2."C 1" Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" r2 Output: r2.c2, r2."C 1" Selected Partitions: 1..2 (29 rows) ALTER SERVER loopback OPTIONS (ADD extensions 'postgres_fdw'); --nspt ERROR: invalid option "extensions" HINT: Valid options in this context are: service, connect_timeout, dbname, host, remote_nodename, hostaddr, port, localhost, localport, application_name, fencedUdfRPCMode, keepalives, keepalives_idle, keepalives_interval, keepalives_count, tcp_user_timeout, rw_timeout, sslmode, sslcompression, sslcert, sslkey, sslrootcert, sslcrl, requirepeer, krbsrvname, prototype, connection_info, connectionExtraInfo, target_session_attrs, use_remote_estimate, fdw_startup_cost, fdw_tuple_cost, updatable -- join two tables with FOR UPDATE clause -- tests whole-row reference for row marks EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c1 FROM ft1 t1 JOIN ft2 t2 ON (t1.c1 = t2.c1) ORDER BY t1.c3, t1.c1 OFFSET 100 LIMIT 10 FOR UPDATE OF t1; QUERY PLAN --------------------------------------------------------------------------------------------------------------- Limit Output: t1.c1, t2.c1, t1.c3, t1.*, t2.* -> Sort Output: t1.c1, t2.c1, t1.c3, t1.*, t2.* Sort Key: t1.c3, t1.c1 -> LockRows Output: t1.c1, t2.c1, t1.c3, t1.*, t2.* -> Hash Join Output: t1.c1, t2.c1, t1.c3, t1.*, t2.* Hash Cond: (t1.c1 = t2.c1) -> Foreign Scan on public.ft1 t1 Output: t1.c1, t1.c3, t1.* Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" FOR UPDATE -> Hash Output: t2.c1, t2.* -> Foreign Scan on public.ft2 t2 Output: t2.c1, t2.* Node ID: 2 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" FOR UPDATE LockRows Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid -> Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid Selected Partitions: 1..2 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Selected Partitions: 1..2 (39 rows) SELECT t1.c1, t2.c1 FROM ft1 t1 JOIN ft2 t2 ON (t1.c1 = t2.c1) ORDER BY t1.c3, t1.c1 OFFSET 100 LIMIT 10 FOR UPDATE OF t1; c1 | c1 -----+----- 101 | 101 102 | 102 103 | 103 104 | 104 105 | 105 106 | 106 107 | 107 108 | 108 109 | 109 110 | 110 (10 rows) EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c1 FROM ft1 t1 JOIN ft2 t2 ON (t1.c1 = t2.c1) ORDER BY t1.c3, t1.c1 OFFSET 100 LIMIT 10 FOR UPDATE; QUERY PLAN ------------------------------------------------------------------------------------------------------------------ Limit Output: t1.c1, t2.c1, t1.c3, t1.*, t2.* -> Sort Output: t1.c1, t2.c1, t1.c3, t1.*, t2.* Sort Key: t1.c3, t1.c1 -> LockRows Output: t1.c1, t2.c1, t1.c3, t1.*, t2.* -> Hash Join Output: t1.c1, t2.c1, t1.c3, t1.*, t2.* Hash Cond: (t2.c1 = t1.c1) -> Foreign Scan on public.ft2 t2 Output: t2.c1, t2.* Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" FOR UPDATE -> Hash Output: t1.c1, t1.c3, t1.* -> Foreign Scan on public.ft1 t1 Output: t1.c1, t1.c3, t1.* Node ID: 2 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" FOR UPDATE FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" FOR UPDATE LockRows Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid -> Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid Selected Partitions: 1..2 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" FOR UPDATE LockRows Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid -> Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid Selected Partitions: 1..2 (41 rows) SELECT t1.c1, t2.c1 FROM ft1 t1 JOIN ft2 t2 ON (t1.c1 = t2.c1) ORDER BY t1.c3, t1.c1 OFFSET 100 LIMIT 10 FOR UPDATE; c1 | c1 -----+----- 101 | 101 102 | 102 103 | 103 104 | 104 105 | 105 106 | 106 107 | 107 108 | 108 109 | 109 110 | 110 (10 rows) -- join two tables with FOR SHARE clause EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c1 FROM ft1 t1 JOIN ft2 t2 ON (t1.c1 = t2.c1) ORDER BY t1.c3, t1.c1 OFFSET 100 LIMIT 10 FOR SHARE OF t1; QUERY PLAN -------------------------------------------------------------------------------------------------------------- Limit Output: t1.c1, t2.c1, t1.c3, t1.*, t2.* -> Sort Output: t1.c1, t2.c1, t1.c3, t1.*, t2.* Sort Key: t1.c3, t1.c1 -> LockRows Output: t1.c1, t2.c1, t1.c3, t1.*, t2.* -> Hash Join Output: t1.c1, t2.c1, t1.c3, t1.*, t2.* Hash Cond: (t1.c1 = t2.c1) -> Foreign Scan on public.ft1 t1 Output: t1.c1, t1.c3, t1.* Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" FOR SHARE -> Hash Output: t2.c1, t2.* -> Foreign Scan on public.ft2 t2 Output: t2.c1, t2.* Node ID: 2 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" FOR SHARE LockRows Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid -> Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid Selected Partitions: 1..2 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Selected Partitions: 1..2 (39 rows) SELECT t1.c1, t2.c1 FROM ft1 t1 JOIN ft2 t2 ON (t1.c1 = t2.c1) ORDER BY t1.c3, t1.c1 OFFSET 100 LIMIT 10 FOR SHARE OF t1; c1 | c1 -----+----- 101 | 101 102 | 102 103 | 103 104 | 104 105 | 105 106 | 106 107 | 107 108 | 108 109 | 109 110 | 110 (10 rows) EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c1 FROM ft1 t1 JOIN ft2 t2 ON (t1.c1 = t2.c1) ORDER BY t1.c3, t1.c1 OFFSET 100 LIMIT 10 FOR SHARE; QUERY PLAN ----------------------------------------------------------------------------------------------------------------- Limit Output: t1.c1, t2.c1, t1.c3, t1.*, t2.* -> Sort Output: t1.c1, t2.c1, t1.c3, t1.*, t2.* Sort Key: t1.c3, t1.c1 -> LockRows Output: t1.c1, t2.c1, t1.c3, t1.*, t2.* -> Hash Join Output: t1.c1, t2.c1, t1.c3, t1.*, t2.* Hash Cond: (t2.c1 = t1.c1) -> Foreign Scan on public.ft2 t2 Output: t2.c1, t2.* Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" FOR SHARE -> Hash Output: t1.c1, t1.c3, t1.* -> Foreign Scan on public.ft1 t1 Output: t1.c1, t1.c3, t1.* Node ID: 2 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" FOR SHARE FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" FOR SHARE LockRows Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid -> Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid Selected Partitions: 1..2 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" FOR SHARE LockRows Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid -> Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid Selected Partitions: 1..2 (41 rows) SELECT t1.c1, t2.c1 FROM ft1 t1 JOIN ft2 t2 ON (t1.c1 = t2.c1) ORDER BY t1.c3, t1.c1 OFFSET 100 LIMIT 10 FOR SHARE; c1 | c1 -----+----- 101 | 101 102 | 102 103 | 103 104 | 104 105 | 105 106 | 106 107 | 107 108 | 108 109 | 109 110 | 110 (10 rows) -- join in CTE EXPLAIN (VERBOSE, COSTS OFF) WITH t (c1_1, c1_3, c2_1) AS MATERIALIZED (SELECT t1.c1, t1.c3, t2.c1 FROM ft1 t1 JOIN ft2 t2 ON (t1.c1 = t2.c1)) SELECT c1_1, c2_1 FROM t ORDER BY c1_3, c1_1 OFFSET 100 LIMIT 10; QUERY PLAN -------------------------------------------------------------------------------------------------------------------------------------------------------- Limit Output: t.c1_1, t.c2_1, t.c1_3 CTE t -> Foreign Scan Output: t1.c1, t1.c3, t2.c1 Node ID: 1 Relations: (public.ft1 t1) INNER JOIN (public.ft2 t2) Remote SQL: SELECT r1."C 1", r1.c3, r2."C 1" FROM ("S 1"."T 1" r1 INNER JOIN "S 1"."T 1" r2 ON (((r1."C 1" = r2."C 1")))) -> Sort Output: t.c1_1, t.c2_1, t.c1_3 Sort Key: t.c1_3, t.c1_1 -> CTE Scan on t Output: t.c1_1, t.c2_1, t.c1_3 FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r1."C 1", r1.c3, r2."C 1" FROM ("S 1"."T 1" r1 INNER JOIN "S 1"."T 1" r2 ON (((r1."C 1" = r2."C 1")))) Hash Join Output: r1."C 1", r1.c3, r2."C 1" Hash Cond: (r1."C 1" = r2."C 1") -> Partition Iterator Output: r1."C 1", r1.c2, r1.c3, r1.c4, r1.c5, r1.c6, r1.c7, r1.c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" r1 Output: r1."C 1", r1.c2, r1.c3, r1.c4, r1.c5, r1.c6, r1.c7, r1.c8 Selected Partitions: 1..2 -> Hash Output: r2."C 1" -> Partition Iterator Output: r2."C 1" Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" r2 Output: r2."C 1" Selected Partitions: 1..2 (34 rows) WITH t (c1_1, c1_3, c2_1) AS MATERIALIZED (SELECT t1.c1, t1.c3, t2.c1 FROM ft1 t1 JOIN ft2 t2 ON (t1.c1 = t2.c1)) SELECT c1_1, c2_1 FROM t ORDER BY c1_3, c1_1 OFFSET 100 LIMIT 10; c1_1 | c2_1 ------+------ 101 | 101 102 | 102 103 | 103 104 | 104 105 | 105 106 | 106 107 | 107 108 | 108 109 | 109 110 | 110 (10 rows) -- ctid with whole-row reference, currently, does not support system column EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.ctid, t1, t2, t1.c1 FROM ft1 t1 JOIN ft2 t2 ON (t1.c1 = t2.c1) ORDER BY t1.c3, t1.c1 OFFSET 100 LIMIT 10; ERROR: column t1.ctid does not exist LINE 2: SELECT t1.ctid, t1, t2, t1.c1 FROM ft1 t1 JOIN ft2 t2 ON (t1... ^ CONTEXT: referenced column: ctid -- SEMI JOIN, not pushed down EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1 FROM ft1 t1 WHERE EXISTS (SELECT 1 FROM ft2 t2 WHERE t1.c1 = t2.c1) ORDER BY t1.c1 OFFSET 100 LIMIT 10; QUERY PLAN ------------------------------------------------------------------------ Limit Output: t1.c1 -> Sort Output: t1.c1 Sort Key: t1.c1 -> Hash Semi Join Output: t1.c1 Hash Cond: (t1.c1 = t2.c1) -> Foreign Scan on public.ft1 t1 Output: t1.c1 Node ID: 1 Remote SQL: SELECT "C 1" FROM "S 1"."T 1" -> Hash Output: t2.c1 -> Foreign Scan on public.ft2 t2 Output: t2.c1 Node ID: 2 Remote SQL: SELECT "C 1" FROM "S 1"."T 1" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1" FROM "S 1"."T 1" Partition Iterator Output: "C 1" Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1" Selected Partitions: 1..2 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1" FROM "S 1"."T 1" Partition Iterator Output: "C 1" Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1" Selected Partitions: 1..2 (35 rows) SELECT t1.c1 FROM ft1 t1 WHERE EXISTS (SELECT 1 FROM ft2 t2 WHERE t1.c1 = t2.c1) ORDER BY t1.c1 OFFSET 100 LIMIT 10; c1 ----- 101 102 103 104 105 106 107 108 109 110 (10 rows) -- ANTI JOIN, not pushed down EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1 FROM ft1 t1 WHERE NOT EXISTS (SELECT 1 FROM ft2 t2 WHERE t1.c1 = t2.c2) ORDER BY t1.c1 OFFSET 100 LIMIT 10; QUERY PLAN ------------------------------------------------------------------------------------------------------ Limit Output: t1.c1 -> Merge Anti Join Output: t1.c1 Merge Cond: (t1.c1 = t2.c2) -> Foreign Scan on public.ft1 t1 Output: t1.c1 Node ID: 1 Remote SQL: SELECT "C 1" FROM "S 1"."T 1" ORDER BY "C 1" ASC NULLS LAST -> Materialize Output: t2.c2 -> Foreign Scan on public.ft2 t2 Output: t2.c2 Node ID: 2 Remote SQL: SELECT c2 FROM "S 1"."T 1" ORDER BY c2 ASC NULLS LAST FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1" FROM "S 1"."T 1" ORDER BY "C 1" ASC NULLS LAST Partition Iterator Output: "C 1" Iterations: 2 -> Partitioned Index Only Scan using t1_pkey on "S 1"."T 1" Output: "C 1" Selected Partitions: 1..2 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c2 FROM "S 1"."T 1" ORDER BY c2 ASC NULLS LAST Sort Output: c2 Sort Key: "T 1".c2 -> Partition Iterator Output: c2 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: c2 Selected Partitions: 1..2 (35 rows) SELECT t1.c1 FROM ft1 t1 WHERE NOT EXISTS (SELECT 1 FROM ft2 t2 WHERE t1.c1 = t2.c2) ORDER BY t1.c1 OFFSET 100 LIMIT 10; c1 ----- 110 111 112 113 114 115 116 117 118 119 (10 rows) -- CROSS JOIN can be pushed down EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c1 FROM ft1 t1 CROSS JOIN ft2 t2 ORDER BY t1.c1, t2.c1 OFFSET 100 LIMIT 10; QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: t1.c1, t2.c1 Node ID: 1 Relations: (public.ft1 t1) INNER JOIN (public.ft2 t2) Remote SQL: SELECT r1."C 1", r2."C 1" FROM ("S 1"."T 1" r1 INNER JOIN "S 1"."T 1" r2 ON (TRUE)) ORDER BY r1."C 1" ASC NULLS LAST, r2."C 1" ASC NULLS LAST LIMIT 10::bigint OFFSET 100::bigint FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r1."C 1", r2."C 1" FROM ("S 1"."T 1" r1 INNER JOIN "S 1"."T 1" r2 ON (TRUE)) ORDER BY r1."C 1" ASC NULLS LAST, r2."C 1" ASC NULLS LAST LIMIT 10::bigint OFFSET 100::bigint Limit Output: r1."C 1", r2."C 1" -> Sort Output: r1."C 1", r2."C 1" Sort Key: r1."C 1", r2."C 1" -> Nested Loop Output: r1."C 1", r2."C 1" -> Partition Iterator Output: r1."C 1", r1.c2, r1.c3, r1.c4, r1.c5, r1.c6, r1.c7, r1.c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" r1 Output: r1."C 1", r1.c2, r1.c3, r1.c4, r1.c5, r1.c6, r1.c7, r1.c8 Selected Partitions: 1..2 -> Materialize Output: r2."C 1" -> Partition Iterator Output: r2."C 1" Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" r2 Output: r2."C 1" Selected Partitions: 1..2 (30 rows) SELECT t1.c1, t2.c1 FROM ft1 t1 CROSS JOIN ft2 t2 ORDER BY t1.c1, t2.c1 OFFSET 100 LIMIT 10; c1 | c1 ----+----- 1 | 101 1 | 102 1 | 103 1 | 104 1 | 105 1 | 106 1 | 107 1 | 108 1 | 109 1 | 110 (10 rows) -- different server, not pushed down. No result expected. EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c1 FROM ft5 t1 JOIN ft6 t2 ON (t1.c1 = t2.c1) ORDER BY t1.c1, t2.c1 OFFSET 100 LIMIT 10; QUERY PLAN ------------------------------------------------------------------------------------------------ Limit Output: t1.c1, t2.c1 -> Merge Join Output: t1.c1, t2.c1 Merge Cond: (t1.c1 = t2.c1) -> Foreign Scan on public.ft5 t1 Output: t1.c1 Node ID: 1 Remote SQL: SELECT c1 FROM "S 1"."T 4" ORDER BY c1 ASC NULLS LAST -> Materialize Output: t2.c1 -> Foreign Scan on public.ft6 t2 Output: t2.c1 Node ID: 2 Remote SQL: SELECT c1 FROM "S 1"."T 4" ORDER BY c1 ASC NULLS LAST FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c1 FROM "S 1"."T 4" ORDER BY c1 ASC NULLS LAST Sort Output: c1 Sort Key: "T 4".c1 -> Partition Iterator Output: c1 Iterations: 2, Sub Iterations: 4 -> Partitioned Seq Scan on "S 1"."T 4" Output: c1 Selected Partitions: 1..2 Selected Subpartitions: ALL Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c1 FROM "S 1"."T 4" ORDER BY c1 ASC NULLS LAST Sort Output: c1 Sort Key: "T 4".c1 -> Partition Iterator Output: c1 Iterations: 2, Sub Iterations: 4 -> Partitioned Seq Scan on "S 1"."T 4" Output: c1 Selected Partitions: 1..2 Selected Subpartitions: ALL (40 rows) SELECT t1.c1, t2.c1 FROM ft5 t1 JOIN ft6 t2 ON (t1.c1 = t2.c1) ORDER BY t1.c1, t2.c1 OFFSET 100 LIMIT 10; c1 | c1 ----+---- (0 rows) -- unsafe join conditions (c8 has a UDT), not pushed down. Practically a CROSS -- JOIN since c8 in both tables has same value. EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c1 FROM ft1 t1 LEFT JOIN ft2 t2 ON (t1.c8 = t2.c8) ORDER BY t1.c1, t2.c1 OFFSET 100 LIMIT 10; QUERY PLAN ---------------------------------------------------------------------------- Limit Output: t1.c1, t2.c1 -> Sort Output: t1.c1, t2.c1 Sort Key: t1.c1, t2.c1 -> Hash Left Join Output: t1.c1, t2.c1 Hash Cond: (t1.c8 = t2.c8) -> Foreign Scan on public.ft1 t1 Output: t1.c1, t1.c8 Node ID: 1 Remote SQL: SELECT "C 1", c8 FROM "S 1"."T 1" -> Hash Output: t2.c1, t2.c8 -> Foreign Scan on public.ft2 t2 Output: t2.c1, t2.c8 Node ID: 2 Remote SQL: SELECT "C 1", c8 FROM "S 1"."T 1" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c8 FROM "S 1"."T 1" Partition Iterator Output: "C 1", c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c8 Selected Partitions: 1..2 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c8 FROM "S 1"."T 1" Partition Iterator Output: "C 1", c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c8 Selected Partitions: 1..2 (35 rows) SELECT t1.c1, t2.c1 FROM ft1 t1 LEFT JOIN ft2 t2 ON (t1.c8 = t2.c8) ORDER BY t1.c1, t2.c1 OFFSET 100 LIMIT 10; c1 | c1 ----+----- 1 | 101 1 | 102 1 | 103 1 | 104 1 | 105 1 | 106 1 | 107 1 | 108 1 | 109 1 | 110 (10 rows) -- unsafe conditions on one side (c8 has a UDT), not pushed down. EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c1 FROM ft1 t1 LEFT JOIN ft2 t2 ON (t1.c1 = t2.c1) WHERE t1.c8 = 'foo' ORDER BY t1.c3, t1.c1 OFFSET 100 LIMIT 10; QUERY PLAN -------------------------------------------------------------------------------- Limit Output: t1.c1, t2.c1, t1.c3 -> Sort Output: t1.c1, t2.c1, t1.c3 Sort Key: t1.c3, t1.c1 -> Hash Left Join Output: t1.c1, t2.c1, t1.c3 Hash Cond: (t1.c1 = t2.c1) -> Foreign Scan on public.ft1 t1 Output: t1.c1, t1.c3 Filter: (t1.c8 = 'foo'::user_enum) Node ID: 1 Remote SQL: SELECT "C 1", c3, c8 FROM "S 1"."T 1" -> Hash Output: t2.c1 -> Foreign Scan on public.ft2 t2 Output: t2.c1 Node ID: 2 Remote SQL: SELECT "C 1" FROM "S 1"."T 1" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c3, c8 FROM "S 1"."T 1" Partition Iterator Output: "C 1", c3, c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c3, c8 Selected Partitions: 1..2 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1" FROM "S 1"."T 1" Partition Iterator Output: "C 1" Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1" Selected Partitions: 1..2 (36 rows) SELECT t1.c1, t2.c1 FROM ft1 t1 LEFT JOIN ft2 t2 ON (t1.c1 = t2.c1) WHERE t1.c8 = 'foo' ORDER BY t1.c3, t1.c1 OFFSET 100 LIMIT 10; c1 | c1 -----+----- 101 | 101 102 | 102 103 | 103 104 | 104 105 | 105 106 | 106 107 | 107 108 | 108 109 | 109 110 | 110 (10 rows) -- join where unsafe to pushdown condition in WHERE clause has a column not -- in the SELECT clause. In this test unsafe clause needs to have column -- references from both joining sides so that the clause is not pushed down -- into one of the joining sides. EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c1 FROM ft1 t1 JOIN ft2 t2 ON (t1.c1 = t2.c1) WHERE t1.c8 = t2.c8 ORDER BY t1.c3, t1.c1 OFFSET 100 LIMIT 10; QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- Limit Output: t1.c1, t2.c1, t1.c3 -> Sort Output: t1.c1, t2.c1, t1.c3 Sort Key: t1.c3, t1.c1 -> Foreign Scan Output: t1.c1, t2.c1, t1.c3 Filter: (t1.c8 = t2.c8) Node ID: 1 Relations: (public.ft1 t1) INNER JOIN (public.ft2 t2) Remote SQL: SELECT r1."C 1", r1.c3, r2."C 1", r1.c8, r2.c8 FROM ("S 1"."T 1" r1 INNER JOIN "S 1"."T 1" r2 ON (((r1."C 1" = r2."C 1")))) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r1."C 1", r1.c3, r2."C 1", r1.c8, r2.c8 FROM ("S 1"."T 1" r1 INNER JOIN "S 1"."T 1" r2 ON (((r1."C 1" = r2."C 1")))) Hash Join Output: r1."C 1", r1.c3, r2."C 1", r1.c8, r2.c8 Hash Cond: (r1."C 1" = r2."C 1") -> Partition Iterator Output: r1."C 1", r1.c2, r1.c3, r1.c4, r1.c5, r1.c6, r1.c7, r1.c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" r1 Output: r1."C 1", r1.c2, r1.c3, r1.c4, r1.c5, r1.c6, r1.c7, r1.c8 Selected Partitions: 1..2 -> Hash Output: r2."C 1", r2.c8 -> Partition Iterator Output: r2."C 1", r2.c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" r2 Output: r2."C 1", r2.c8 Selected Partitions: 1..2 (32 rows) SELECT t1.c1, t2.c1 FROM ft1 t1 JOIN ft2 t2 ON (t1.c1 = t2.c1) WHERE t1.c8 = t2.c8 ORDER BY t1.c3, t1.c1 OFFSET 100 LIMIT 10; c1 | c1 -----+----- 101 | 101 102 | 102 103 | 103 104 | 104 105 | 105 106 | 106 107 | 107 108 | 108 109 | 109 110 | 110 (10 rows) -- Aggregate after UNION, for testing setrefs EXPLAIN (VERBOSE, COSTS OFF) SELECT t1c1, avg(t1c1 + t2c1) FROM (SELECT t1.c1, t2.c1 FROM ft1 t1 JOIN ft2 t2 ON (t1.c1 = t2.c1) UNION SELECT t1.c1, t2.c1 FROM ft1 t1 JOIN ft2 t2 ON (t1.c1 = t2.c1)) AS t (t1c1, t2c1) GROUP BY t1c1 ORDER BY t1c1 OFFSET 100 LIMIT 10; QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------------------------- Limit Output: t1.c1, (avg((t1.c1 + t2.c1))) -> Sort Output: t1.c1, (avg((t1.c1 + t2.c1))) Sort Key: t1.c1 -> HashAggregate Output: t1.c1, avg((t1.c1 + t2.c1)) Group By Key: t1.c1 -> HashAggregate Output: t1.c1, t2.c1 Group By Key: t1.c1, t2.c1 -> Append -> Foreign Scan Output: t1.c1, t2.c1 Node ID: 1 Relations: (public.ft1 t1) INNER JOIN (public.ft2 t2) Remote SQL: SELECT r1."C 1", r2."C 1" FROM ("S 1"."T 1" r1 INNER JOIN "S 1"."T 1" r2 ON (((r1."C 1" = r2."C 1")))) -> Foreign Scan Output: t1.c1, t2.c1 Node ID: 2 Relations: (public.ft1 t1) INNER JOIN (public.ft2 t2) Remote SQL: SELECT r1."C 1", r2."C 1" FROM ("S 1"."T 1" r1 INNER JOIN "S 1"."T 1" r2 ON (((r1."C 1" = r2."C 1")))) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r1."C 1", r2."C 1" FROM ("S 1"."T 1" r1 INNER JOIN "S 1"."T 1" r2 ON (((r1."C 1" = r2."C 1")))) Hash Join Output: r1."C 1", r2."C 1" Hash Cond: (r1."C 1" = r2."C 1") -> Partition Iterator Output: r1."C 1", r1.c2, r1.c3, r1.c4, r1.c5, r1.c6, r1.c7, r1.c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" r1 Output: r1."C 1", r1.c2, r1.c3, r1.c4, r1.c5, r1.c6, r1.c7, r1.c8 Selected Partitions: 1..2 -> Hash Output: r2."C 1" -> Partition Iterator Output: r2."C 1" Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" r2 Output: r2."C 1" Selected Partitions: 1..2 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r1."C 1", r2."C 1" FROM ("S 1"."T 1" r1 INNER JOIN "S 1"."T 1" r2 ON (((r1."C 1" = r2."C 1")))) Hash Join Output: r1."C 1", r2."C 1" Hash Cond: (r1."C 1" = r2."C 1") -> Partition Iterator Output: r1."C 1", r1.c2, r1.c3, r1.c4, r1.c5, r1.c6, r1.c7, r1.c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" r1 Output: r1."C 1", r1.c2, r1.c3, r1.c4, r1.c5, r1.c6, r1.c7, r1.c8 Selected Partitions: 1..2 -> Hash Output: r2."C 1" -> Partition Iterator Output: r2."C 1" Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" r2 Output: r2."C 1" Selected Partitions: 1..2 (61 rows) SELECT t1c1, avg(t1c1 + t2c1) FROM (SELECT t1.c1, t2.c1 FROM ft1 t1 JOIN ft2 t2 ON (t1.c1 = t2.c1) UNION SELECT t1.c1, t2.c1 FROM ft1 t1 JOIN ft2 t2 ON (t1.c1 = t2.c1)) AS t (t1c1, t2c1) GROUP BY t1c1 ORDER BY t1c1 OFFSET 100 LIMIT 10; t1c1 | avg ------+---------------------- 101 | 202.0000000000000000 102 | 204.0000000000000000 103 | 206.0000000000000000 104 | 208.0000000000000000 105 | 210.0000000000000000 106 | 212.0000000000000000 107 | 214.0000000000000000 108 | 216.0000000000000000 109 | 218.0000000000000000 110 | 220.0000000000000000 (10 rows) -- join with lateral reference EXPLAIN (VERBOSE, COSTS OFF) -- openGauss not support LATERAL SELECT t1."C 1" FROM "S 1"."T 1" t1, LATERAL (SELECT DISTINCT t2.c1, t3.c1 FROM ft1 t2, ft2 t3 WHERE t2.c1 = t3.c1 AND t2.c2 = t1.c2) q ORDER BY t1."C 1" OFFSET 10 LIMIT 10; ERROR: syntax error at or near "SELECT" LINE 2: SELECT t1."C 1" FROM "S 1"."T 1" t1, LATERAL (SELECT DISTINC... ^ SELECT t1."C 1" FROM "S 1"."T 1" t1, LATERAL (SELECT DISTINCT t2.c1, t3.c1 FROM ft1 t2, ft2 t3 WHERE t2.c1 = t3.c1 AND t2.c2 = t1.c2) q ORDER BY t1."C 1" OFFSET 10 LIMIT 10; ERROR: syntax error at or near "SELECT" LINE 1: SELECT t1."C 1" FROM "S 1"."T 1" t1, LATERAL (SELECT DISTINC... ^ -- non-Var items in targetlist of the nullable rel of a join preventing -- push-down in some cases -- unable to push {ft1, ft2} EXPLAIN (VERBOSE, COSTS OFF) SELECT q.a, ft2.c1 FROM (SELECT 13 FROM ft1 WHERE c1 = 13) q(a) RIGHT JOIN ft2 ON (q.a = ft2.c1) WHERE ft2.c1 BETWEEN 10 AND 15; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------ Nested Loop Left Join Output: (13), ft2.c1 Join Filter: (13 = ft2.c1) -> Foreign Scan on public.ft2 Output: ft2.c1 Node ID: 1 Remote SQL: SELECT "C 1" FROM "S 1"."T 1" WHERE (("C 1" >= 10)) AND (("C 1" <= 15)) ORDER BY "C 1" ASC NULLS LAST -> Materialize Output: (13) -> Foreign Scan on public.ft1 Output: 13 Node ID: 2 Remote SQL: SELECT NULL FROM "S 1"."T 1" WHERE (("C 1" = 13)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1" FROM "S 1"."T 1" WHERE (("C 1" >= 10)) AND (("C 1" <= 15)) ORDER BY "C 1" ASC NULLS LAST Partitioned Index Only Scan using t1_pkey on "S 1"."T 1" Output: "C 1" Index Cond: (("T 1"."C 1" >= 10) AND ("T 1"."C 1" <= 15)) Selected Partitions: 1 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT NULL FROM "S 1"."T 1" WHERE (("C 1" = 13)) Partitioned Index Only Scan using t1_pkey on "S 1"."T 1" Output: NULL::text Index Cond: ("T 1"."C 1" = 13) Selected Partitions: 1 (26 rows) SELECT q.a, ft2.c1 FROM (SELECT 13 FROM ft1 WHERE c1 = 13) q(a) RIGHT JOIN ft2 ON (q.a = ft2.c1) WHERE ft2.c1 BETWEEN 10 AND 15; a | c1 ----+---- | 10 | 11 | 12 13 | 13 | 14 | 15 (6 rows) -- ok to push {ft1, ft2} but not {ft1, ft2, ft4} EXPLAIN (VERBOSE, COSTS OFF) SELECT ft4.c1, q.* FROM ft4 LEFT JOIN (SELECT 13, ft1.c1, ft2.c1 FROM ft1 RIGHT JOIN ft2 ON (ft1.c1 = ft2.c1) WHERE ft1.c1 = 12) q(a, b, c) ON (ft4.c1 = q.b) WHERE ft4.c1 BETWEEN 10 AND 15; QUERY PLAN -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Nested Loop Left Join Output: ft4.c1, (13), ft1.c1, ft2.c1 Join Filter: (ft4.c1 = ft1.c1) -> Foreign Scan on public.ft4 Output: ft4.c1 Node ID: 1 Remote SQL: SELECT c1 FROM "S 1"."T 3" WHERE ((c1 >= 10)) AND ((c1 <= 15)) -> Materialize Output: ft1.c1, ft2.c1, (13) -> Foreign Scan Output: ft1.c1, ft2.c1, 13 Node ID: 2 Relations: (public.ft1) INNER JOIN (public.ft2) Remote SQL: SELECT r4."C 1", r5."C 1" FROM ("S 1"."T 1" r4 INNER JOIN "S 1"."T 1" r5 ON (((r5."C 1" = 12)) AND ((r4."C 1" = 12)))) ORDER BY r4."C 1" ASC NULLS LAST FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c1 FROM "S 1"."T 3" WHERE ((c1 >= 10)) AND ((c1 <= 15)) Partition Iterator Output: c1 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" Output: c1 Filter: (("T 3".c1 >= 10) AND ("T 3".c1 <= 15)) Selected Partitions: 1..2 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r4."C 1", r5."C 1" FROM ("S 1"."T 1" r4 INNER JOIN "S 1"."T 1" r5 ON (((r5."C 1" = 12)) AND ((r4."C 1" = 12)))) ORDER BY r4."C 1" ASC NULLS LAST Nested Loop Output: r4."C 1", r5."C 1" -> Partitioned Index Only Scan using t1_pkey on "S 1"."T 1" r4 Output: r4."C 1" Index Cond: (r4."C 1" = 12) Selected Partitions: 1 -> Partitioned Index Only Scan using t1_pkey on "S 1"."T 1" r5 Output: r5."C 1" Index Cond: (r5."C 1" = 12) Selected Partitions: 1 (36 rows) SELECT ft4.c1, q.* FROM ft4 LEFT JOIN (SELECT 13, ft1.c1, ft2.c1 FROM ft1 RIGHT JOIN ft2 ON (ft1.c1 = ft2.c1) WHERE ft1.c1 = 12) q(a, b, c) ON (ft4.c1 = q.b) WHERE ft4.c1 BETWEEN 10 AND 15; c1 | a | b | c ----+----+----+---- 10 | | | 14 | | | 12 | 13 | 12 | 12 (3 rows) -- join with nullable side with some columns with null values UPDATE ft5 SET c3 = null where c1 % 9 = 0; EXPLAIN (VERBOSE, COSTS OFF) SELECT ft5, ft5.c1, ft5.c2, ft5.c3, ft4.c1, ft4.c2 FROM ft5 left join ft4 on ft5.c1 = ft4.c1 WHERE ft4.c1 BETWEEN 10 and 30 ORDER BY ft5.c1, ft4.c1; QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Sort Output: ft5.*, ft5.c1, ft5.c2, ft5.c3, ft4.c1, ft4.c2 Sort Key: ft5.c1 -> Foreign Scan Output: ft5.*, ft5.c1, ft5.c2, ft5.c3, ft4.c1, ft4.c2 Node ID: 1 Relations: (public.ft5) INNER JOIN (public.ft4) Remote SQL: SELECT CASE WHEN (r1.*)::text IS NOT NULL THEN ROW(r1.c1, r1.c2, r1.c3) END, r1.c1, r1.c2, r1.c3, r2.c1, r2.c2 FROM ("S 1"."T 4" r1 INNER JOIN "S 1"."T 3" r2 ON (((r1.c1 = r2.c1)) AND ((r2.c1 >= 10)) AND ((r2.c1 <= 30)) AND ((r1.c1 >= 10)) AND ((r1.c1 <= 30)))) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT CASE WHEN (r1.*)::text IS NOT NULL THEN ROW(r1.c1, r1.c2, r1.c3) END, r1.c1, r1.c2, r1.c3, r2.c1, r2.c2 FROM ("S 1"."T 4" r1 INNER JOIN "S 1"."T 3" r2 ON (((r1.c1 = r2.c1)) AND ((r2.c1 >= 10)) AND ((r2.c1 <= 30)) AND ((r1.c1 >= 10)) AND ((r1.c1 <= 30)))) Hash Join Output: CASE WHEN ((r1.*)::text IS NOT NULL) THEN ROW(r1.c1, r1.c2, r1.c3) ELSE NULL::record END, r1.c1, r1.c2, r1.c3, r2.c1, r2.c2 Hash Cond: (r2.c1 = r1.c1) -> Partition Iterator Output: r2.c1, r2.c2, r2.c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" r2 Output: r2.c1, r2.c2, r2.c3 Filter: ((r2.c1 >= 10) AND (r2.c1 <= 30)) Selected Partitions: 1..2 -> Hash Output: r1.*, r1.c1, r1.c2, r1.c3 -> Partition Iterator Output: r1.*, r1.c1, r1.c2, r1.c3 Iterations: 1, Sub Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 4" r1 Output: r1.*, r1.c1, r1.c2, r1.c3 Filter: ((r1.c1 >= 10) AND (r1.c1 <= 30)) Selected Partitions: 1 Selected Subpartitions: ALL (32 rows) SELECT ft5, ft5.c1, ft5.c2, ft5.c3, ft4.c1, ft4.c2 FROM ft5 left join ft4 on ft5.c1 = ft4.c1 WHERE ft4.c1 BETWEEN 10 and 30 ORDER BY ft5.c1, ft4.c1; ft5 | c1 | c2 | c3 | c1 | c2 ----------------+----+----+--------+----+---- (12,13,AAA012) | 12 | 13 | AAA012 | 12 | 13 (18,19,) | 18 | 19 | | 18 | 19 (24,25,AAA024) | 24 | 25 | AAA024 | 24 | 25 (30,31,AAA030) | 30 | 31 | AAA030 | 30 | 31 (4 rows) -- multi-way join involving multiple merge joins -- (this case used to have EPQ-related planning problems) CREATE TABLE local_tbl (c1 int NOT NULL, c2 int NOT NULL, c3 text, CONSTRAINT local_tbl_pkey PRIMARY KEY (c1)); NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index "local_tbl_pkey" for table "local_tbl" INSERT INTO local_tbl SELECT id, id % 10, to_char(id, 'FM0000') FROM generate_series(1, 1000) id; ANALYZE local_tbl; SET enable_nestloop TO false; SET enable_hashjoin TO false; EXPLAIN (VERBOSE, COSTS OFF) SELECT * FROM ft1, ft2, ft4, ft5, local_tbl WHERE ft1.c1 = ft2.c1 AND ft1.c2 = ft4.c1 AND ft1.c2 = ft5.c1 AND ft1.c2 = local_tbl.c1 AND ft1.c1 < 100 AND ft2.c1 < 100 FOR UPDATE; QUERY PLAN -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- LockRows Output: ft1.c1, ft1.c2, ft1.c3, ft1.c4, ft1.c5, ft1.c6, ft1.c7, ft1.c8, ft2.c1, ft2.c2, ft2.c3, ft2.c4, ft2.c5, ft2.c6, ft2.c7, ft2.c8, ft4.c1, ft4.c2, ft4.c3, ft5.c1, ft5.c2, ft5.c3, local_tbl.c1, local_tbl.c2, local_tbl.c3, local_tbl.ctid, ft1.*, ft2.*, ft4.*, ft5.* -> Merge Join Output: ft1.c1, ft1.c2, ft1.c3, ft1.c4, ft1.c5, ft1.c6, ft1.c7, ft1.c8, ft2.c1, ft2.c2, ft2.c3, ft2.c4, ft2.c5, ft2.c6, ft2.c7, ft2.c8, ft4.c1, ft4.c2, ft4.c3, ft5.c1, ft5.c2, ft5.c3, local_tbl.c1, local_tbl.c2, local_tbl.c3, local_tbl.ctid, ft1.*, ft2.*, ft4.*, ft5.* Merge Cond: (ft2.c1 = ft1.c1) -> Foreign Scan on public.ft2 Output: ft2.c1, ft2.c2, ft2.c3, ft2.c4, ft2.c5, ft2.c6, ft2.c7, ft2.c8, ft2.* Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" < 100)) ORDER BY "C 1" ASC NULLS LAST FOR UPDATE -> Sort Output: ft1.c1, ft1.c2, ft1.c3, ft1.c4, ft1.c5, ft1.c6, ft1.c7, ft1.c8, ft1.*, ft4.c1, ft4.c2, ft4.c3, ft4.*, ft5.c1, ft5.c2, ft5.c3, ft5.*, local_tbl.c1, local_tbl.c2, local_tbl.c3, local_tbl.ctid Sort Key: ft1.c1 -> Merge Join Output: ft1.c1, ft1.c2, ft1.c3, ft1.c4, ft1.c5, ft1.c6, ft1.c7, ft1.c8, ft1.*, ft4.c1, ft4.c2, ft4.c3, ft4.*, ft5.c1, ft5.c2, ft5.c3, ft5.*, local_tbl.c1, local_tbl.c2, local_tbl.c3, local_tbl.ctid Merge Cond: (ft4.c1 = ft1.c2) -> Merge Join Output: ft4.c1, ft4.c2, ft4.c3, ft4.*, ft5.c1, ft5.c2, ft5.c3, ft5.*, local_tbl.c1, local_tbl.c2, local_tbl.c3, local_tbl.ctid Merge Cond: (ft4.c1 = local_tbl.c1) -> Merge Join Output: ft4.c1, ft4.c2, ft4.c3, ft4.*, ft5.c1, ft5.c2, ft5.c3, ft5.* Merge Cond: (ft4.c1 = ft5.c1) -> Sort Output: ft4.c1, ft4.c2, ft4.c3, ft4.* Sort Key: ft4.c1 -> Foreign Scan on public.ft4 Output: ft4.c1, ft4.c2, ft4.c3, ft4.* Node ID: 2 Remote SQL: SELECT c1, c2, c3 FROM "S 1"."T 3" FOR UPDATE -> Sort Output: ft5.c1, ft5.c2, ft5.c3, ft5.* Sort Key: ft5.c1 -> Foreign Scan on public.ft5 Output: ft5.c1, ft5.c2, ft5.c3, ft5.* Node ID: 3 Remote SQL: SELECT c1, c2, c3 FROM "S 1"."T 4" FOR UPDATE -> Index Scan using local_tbl_pkey on public.local_tbl Output: local_tbl.c1, local_tbl.c2, local_tbl.c3, local_tbl.ctid -> Sort Output: ft1.c1, ft1.c2, ft1.c3, ft1.c4, ft1.c5, ft1.c6, ft1.c7, ft1.c8, ft1.* Sort Key: ft1.c2 -> Foreign Scan on public.ft1 Output: ft1.c1, ft1.c2, ft1.c3, ft1.c4, ft1.c5, ft1.c6, ft1.c7, ft1.c8, ft1.* Node ID: 4 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" < 100)) FOR UPDATE FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" < 100)) ORDER BY "C 1" ASC NULLS LAST FOR UPDATE LockRows Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid -> Partitioned Index Scan using t1_pkey on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid Index Cond: ("T 1"."C 1" < 100) Selected Partitions: 1 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c1, c2, c3 FROM "S 1"."T 3" FOR UPDATE LockRows Output: c1, c2, c3, ctid, tableoid -> Partition Iterator Output: c1, c2, c3, ctid, tableoid Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" Output: c1, c2, c3, ctid, tableoid Selected Partitions: 1..2 Node 3: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c1, c2, c3 FROM "S 1"."T 4" FOR UPDATE LockRows Output: c1, c2, c3, ctid, tableoid -> Partition Iterator Output: c1, c2, c3, ctid, tableoid Iterations: 2, Sub Iterations: 4 -> Partitioned Seq Scan on "S 1"."T 4" Output: c1, c2, c3, ctid, tableoid Selected Partitions: 1..2 Selected Subpartitions: ALL Node 4: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" < 100)) FOR UPDATE LockRows Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid -> Partitioned Index Scan using t1_pkey on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid Index Cond: ("T 1"."C 1" < 100) Selected Partitions: 1 (80 rows) SELECT * FROM ft1, ft2, ft4, ft5, local_tbl WHERE ft1.c1 = ft2.c1 AND ft1.c2 = ft4.c1 AND ft1.c2 = ft5.c1 AND ft1.c2 = local_tbl.c1 AND ft1.c1 < 100 AND ft2.c1 < 100 FOR UPDATE; c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 | c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 | c1 | c2 | c3 | c1 | c2 | c3 | c1 | c2 | c3 ----+----+-------+------------------------------+--------------------------+----+------------+-----+----+----+-------+------------------------------+--------------------------+----+------------+-----+----+----+--------+----+----+--------+----+----+------ 6 | 6 | 00006 | Wed Jan 07 00:00:00 1970 PST | Wed Jan 07 00:00:00 1970 | 6 | 6 | foo | 6 | 6 | 00006 | Wed Jan 07 00:00:00 1970 PST | Wed Jan 07 00:00:00 1970 | 6 | 6 | foo | 6 | 7 | AAA006 | 6 | 7 | AAA006 | 6 | 6 | 0006 16 | 6 | 00016 | Sat Jan 17 00:00:00 1970 PST | Sat Jan 17 00:00:00 1970 | 6 | 6 | foo | 16 | 6 | 00016 | Sat Jan 17 00:00:00 1970 PST | Sat Jan 17 00:00:00 1970 | 6 | 6 | foo | 6 | 7 | AAA006 | 6 | 7 | AAA006 | 6 | 6 | 0006 26 | 6 | 00026 | Tue Jan 27 00:00:00 1970 PST | Tue Jan 27 00:00:00 1970 | 6 | 6 | foo | 26 | 6 | 00026 | Tue Jan 27 00:00:00 1970 PST | Tue Jan 27 00:00:00 1970 | 6 | 6 | foo | 6 | 7 | AAA006 | 6 | 7 | AAA006 | 6 | 6 | 0006 36 | 6 | 00036 | Fri Feb 06 00:00:00 1970 PST | Fri Feb 06 00:00:00 1970 | 6 | 6 | foo | 36 | 6 | 00036 | Fri Feb 06 00:00:00 1970 PST | Fri Feb 06 00:00:00 1970 | 6 | 6 | foo | 6 | 7 | AAA006 | 6 | 7 | AAA006 | 6 | 6 | 0006 46 | 6 | 00046 | Mon Feb 16 00:00:00 1970 PST | Mon Feb 16 00:00:00 1970 | 6 | 6 | foo | 46 | 6 | 00046 | Mon Feb 16 00:00:00 1970 PST | Mon Feb 16 00:00:00 1970 | 6 | 6 | foo | 6 | 7 | AAA006 | 6 | 7 | AAA006 | 6 | 6 | 0006 56 | 6 | 00056 | Thu Feb 26 00:00:00 1970 PST | Thu Feb 26 00:00:00 1970 | 6 | 6 | foo | 56 | 6 | 00056 | Thu Feb 26 00:00:00 1970 PST | Thu Feb 26 00:00:00 1970 | 6 | 6 | foo | 6 | 7 | AAA006 | 6 | 7 | AAA006 | 6 | 6 | 0006 66 | 6 | 00066 | Sun Mar 08 00:00:00 1970 PST | Sun Mar 08 00:00:00 1970 | 6 | 6 | foo | 66 | 6 | 00066 | Sun Mar 08 00:00:00 1970 PST | Sun Mar 08 00:00:00 1970 | 6 | 6 | foo | 6 | 7 | AAA006 | 6 | 7 | AAA006 | 6 | 6 | 0006 76 | 6 | 00076 | Wed Mar 18 00:00:00 1970 PST | Wed Mar 18 00:00:00 1970 | 6 | 6 | foo | 76 | 6 | 00076 | Wed Mar 18 00:00:00 1970 PST | Wed Mar 18 00:00:00 1970 | 6 | 6 | foo | 6 | 7 | AAA006 | 6 | 7 | AAA006 | 6 | 6 | 0006 86 | 6 | 00086 | Sat Mar 28 00:00:00 1970 PST | Sat Mar 28 00:00:00 1970 | 6 | 6 | foo | 86 | 6 | 00086 | Sat Mar 28 00:00:00 1970 PST | Sat Mar 28 00:00:00 1970 | 6 | 6 | foo | 6 | 7 | AAA006 | 6 | 7 | AAA006 | 6 | 6 | 0006 96 | 6 | 00096 | Tue Apr 07 00:00:00 1970 PST | Tue Apr 07 00:00:00 1970 | 6 | 6 | foo | 96 | 6 | 00096 | Tue Apr 07 00:00:00 1970 PST | Tue Apr 07 00:00:00 1970 | 6 | 6 | foo | 6 | 7 | AAA006 | 6 | 7 | AAA006 | 6 | 6 | 0006 (10 rows) RESET enable_nestloop; RESET enable_hashjoin; DROP TABLE local_tbl; -- check join pushdown in situations where multiple userids are involved CREATE ROLE regress_view_owner_partition sysadmin password 'QWERT@12345'; CREATE USER MAPPING FOR regress_view_owner_partition SERVER loopback; GRANT SELECT ON ft4 TO regress_view_owner_partition; GRANT SELECT ON ft5 TO regress_view_owner_partition; CREATE VIEW v4 AS SELECT * FROM ft4; CREATE VIEW v5 AS SELECT * FROM ft5; ALTER VIEW v5 OWNER TO regress_view_owner_partition; EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c2 FROM v4 t1 LEFT JOIN v5 t2 ON (t1.c1 = t2.c1) ORDER BY t1.c1, t2.c1 OFFSET 10 LIMIT 10; -- can't be pushed down, different view owners QUERY PLAN ------------------------------------------------------------------------- Limit Output: ft4.c1, ft5.c2, ft5.c1 -> Sort Output: ft4.c1, ft5.c2, ft5.c1 Sort Key: ft4.c1, ft5.c1 -> Hash Left Join Output: ft4.c1, ft5.c2, ft5.c1 Hash Cond: (ft4.c1 = ft5.c1) -> Foreign Scan on public.ft4 Output: ft4.c1 Node ID: 1 Remote SQL: SELECT c1 FROM "S 1"."T 3" -> Hash Output: ft5.c2, ft5.c1 -> Foreign Scan on public.ft5 Output: ft5.c2, ft5.c1 Node ID: 2 Remote SQL: SELECT c1, c2 FROM "S 1"."T 4" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c1 FROM "S 1"."T 3" Partition Iterator Output: c1 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" Output: c1 Selected Partitions: 1..2 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c1, c2 FROM "S 1"."T 4" Partition Iterator Output: c1, c2 Iterations: 2, Sub Iterations: 4 -> Partitioned Seq Scan on "S 1"."T 4" Output: c1, c2 Selected Partitions: 1..2 Selected Subpartitions: ALL (36 rows) SELECT t1.c1, t2.c2 FROM v4 t1 LEFT JOIN v5 t2 ON (t1.c1 = t2.c1) ORDER BY t1.c1, t2.c1 OFFSET 10 LIMIT 10; c1 | c2 ----+---- 22 | 24 | 25 26 | 28 | 30 | 31 32 | 34 | 36 | 37 38 | 40 | (10 rows) ALTER VIEW v4 OWNER TO regress_view_owner_partition; EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c2 FROM v4 t1 LEFT JOIN v5 t2 ON (t1.c1 = t2.c1) ORDER BY t1.c1, t2.c1 OFFSET 10 LIMIT 10; -- can be pushed down QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: ft4.c1, ft5.c2, ft5.c1 Node ID: 1 Relations: (public.ft4) LEFT JOIN (public.ft5) Remote SQL: SELECT r6.c1, r9.c2, r9.c1 FROM ("S 1"."T 3" r6 LEFT JOIN "S 1"."T 4" r9 ON (((r6.c1 = r9.c1)))) ORDER BY r6.c1 ASC NULLS LAST, r9.c1 ASC NULLS LAST LIMIT 10::bigint OFFSET 10::bigint FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r6.c1, r9.c2, r9.c1 FROM ("S 1"."T 3" r6 LEFT JOIN "S 1"."T 4" r9 ON (((r6.c1 = r9.c1)))) ORDER BY r6.c1 ASC NULLS LAST, r9.c1 ASC NULLS LAST LIMIT 10::bigint OFFSET 10::bigint Limit Output: r6.c1, r9.c2, r9.c1 -> Sort Output: r6.c1, r9.c2, r9.c1 Sort Key: r6.c1, r9.c1 -> Hash Left Join Output: r6.c1, r9.c2, r9.c1 Hash Cond: (r6.c1 = r9.c1) -> Partition Iterator Output: r6.c1, r6.c2, r6.c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" r6 Output: r6.c1, r6.c2, r6.c3 Selected Partitions: 1..2 -> Hash Output: r9.c2, r9.c1 -> Partition Iterator Output: r9.c2, r9.c1 Iterations: 2, Sub Iterations: 4 -> Partitioned Seq Scan on "S 1"."T 4" r9 Output: r9.c2, r9.c1 Selected Partitions: 1..2 Selected Subpartitions: ALL (32 rows) SELECT t1.c1, t2.c2 FROM v4 t1 LEFT JOIN v5 t2 ON (t1.c1 = t2.c1) ORDER BY t1.c1, t2.c1 OFFSET 10 LIMIT 10; c1 | c2 ----+---- 22 | 24 | 25 26 | 28 | 30 | 31 32 | 34 | 36 | 37 38 | 40 | (10 rows) EXPLAIN (VERBOSE, COSTS OFF) SELECT t1.c1, t2.c2 FROM v4 t1 LEFT JOIN ft5 t2 ON (t1.c1 = t2.c1) ORDER BY t1.c1, t2.c1 OFFSET 10 LIMIT 10; -- can't be pushed down, view owner not current user QUERY PLAN ------------------------------------------------------------------------- Limit Output: ft4.c1, t2.c2, t2.c1 -> Sort Output: ft4.c1, t2.c2, t2.c1 Sort Key: ft4.c1, t2.c1 -> Hash Left Join Output: ft4.c1, t2.c2, t2.c1 Hash Cond: (ft4.c1 = t2.c1) -> Foreign Scan on public.ft4 Output: ft4.c1 Node ID: 1 Remote SQL: SELECT c1 FROM "S 1"."T 3" -> Hash Output: t2.c2, t2.c1 -> Foreign Scan on public.ft5 t2 Output: t2.c2, t2.c1 Node ID: 2 Remote SQL: SELECT c1, c2 FROM "S 1"."T 4" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c1 FROM "S 1"."T 3" Partition Iterator Output: c1 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" Output: c1 Selected Partitions: 1..2 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c1, c2 FROM "S 1"."T 4" Partition Iterator Output: c1, c2 Iterations: 2, Sub Iterations: 4 -> Partitioned Seq Scan on "S 1"."T 4" Output: c1, c2 Selected Partitions: 1..2 Selected Subpartitions: ALL (36 rows) SELECT t1.c1, t2.c2 FROM v4 t1 LEFT JOIN ft5 t2 ON (t1.c1 = t2.c1) ORDER BY t1.c1, t2.c1 OFFSET 10 LIMIT 10; c1 | c2 ----+---- 22 | 24 | 25 26 | 28 | 30 | 31 32 | 34 | 36 | 37 38 | 40 | (10 rows) ALTER VIEW v4 OWNER TO regress_view_owner_partition; -- PlaceHolder explain(verbose, costs off) select * from ft1 t1 left join (select c1, case when c2 is not null then 1 else 0 end as cc from ft2) t2 on t1.c1 = t2.c1; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------ Hash Left Join Output: t1.c1, t1.c2, t1.c3, t1.c4, t1.c5, t1.c6, t1.c7, t1.c8, ft2.c1, (CASE WHEN (ft2.c2 IS NOT NULL) THEN 1 ELSE 0 END) Hash Cond: (t1.c1 = ft2.c1) -> Foreign Scan on public.ft1 t1 Output: t1.c1, t1.c2, t1.c3, t1.c4, t1.c5, t1.c6, t1.c7, t1.c8 Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" -> Hash Output: ft2.c1, (CASE WHEN (ft2.c2 IS NOT NULL) THEN 1 ELSE 0 END) -> Foreign Scan on public.ft2 Output: ft2.c1, CASE WHEN (ft2.c2 IS NOT NULL) THEN 1 ELSE 0 END Node ID: 2 Remote SQL: SELECT "C 1", c2 FROM "S 1"."T 1" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Selected Partitions: 1..2 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2 FROM "S 1"."T 1" Partition Iterator Output: "C 1", c2 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2 Selected Partitions: 1..2 (30 rows) -- cleanup DROP OWNED BY regress_view_owner_partition; DROP ROLE regress_view_owner_partition; -- ====================================================================================================================================== -- TEST-MODULE: Aggregate and grouping queries -- -------------------------------------- -- openGauss not support filter -- ====================================================================================================================================== -- Simple aggregates explain (verbose, costs off) select count(c6), sum(c1), avg(c1), min(c2), max(c1), stddev(c2), sum(c1) * (random() <= 1)::int as sum2 from ft1 where c2 < 5 group by c2 order by 1, 2; QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: (count(c6)), (sum(c1)), (avg(c1)), (min(c2)), (max(c1)), (stddev(c2)), ((sum(c1)) * ((random() <= 1::double precision))::integer), c2 Node ID: 1 Relations: Aggregate on (public.ft1) Remote SQL: SELECT count(c6), sum("C 1"), avg("C 1"), min(c2), max("C 1"), stddev(c2), c2 FROM "S 1"."T 1" WHERE ((c2 < 5)) GROUP BY 7 ORDER BY count(c6) ASC NULLS LAST, sum("C 1") ASC NULLS LAST FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT count(c6), sum("C 1"), avg("C 1"), min(c2), max("C 1"), stddev(c2), c2 FROM "S 1"."T 1" WHERE ((c2 < 5)) GROUP BY 7 ORDER BY count(c6) ASC NULLS LAST, sum("C 1") ASC NULLS LAST Sort Output: (count(c6)), (sum("C 1")), (avg("C 1")), (min(c2)), (max("C 1")), (stddev(c2)), c2 Sort Key: (count("T 1".c6)), (sum("T 1"."C 1")) -> HashAggregate Output: count(c6), sum("C 1"), avg("C 1"), min(c2), max("C 1"), stddev(c2), c2 Group By Key: "T 1".c2 -> Partition Iterator Output: c2, c6, "C 1" Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: c2, c6, "C 1" Filter: ("T 1".c2 < 5) Selected Partitions: 1..2 (22 rows) select count(c6), sum(c1), avg(c1), min(c2), max(c1), stddev(c2), sum(c1) * (random() <= 1)::int as sum2 from ft1 where c2 < 5 group by c2 order by 1, 2; count | sum | avg | min | max | stddev | sum2 -------+-------+----------------------+-----+------+--------+------- 100 | 49600 | 496.0000000000000000 | 1 | 991 | 0 | 49600 100 | 49700 | 497.0000000000000000 | 2 | 992 | 0 | 49700 100 | 49800 | 498.0000000000000000 | 3 | 993 | 0 | 49800 100 | 49900 | 499.0000000000000000 | 4 | 994 | 0 | 49900 100 | 50500 | 505.0000000000000000 | 0 | 1000 | 0 | 50500 (5 rows) explain (verbose, costs off) select count(c6), sum(c1), avg(c1), min(c2), max(c1), stddev(c2), sum(c1) * (random() <= 1)::int as sum2 from ft1 where c2 < 5 group by c2 order by 1, 2 limit 1; QUERY PLAN -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: (count(c6)), (sum(c1)), (avg(c1)), (min(c2)), (max(c1)), (stddev(c2)), ((sum(c1)) * ((random() <= 1::double precision))::integer), c2 Node ID: 1 Relations: Aggregate on (public.ft1) Remote SQL: SELECT count(c6), sum("C 1"), avg("C 1"), min(c2), max("C 1"), stddev(c2), c2 FROM "S 1"."T 1" WHERE ((c2 < 5)) GROUP BY 7 ORDER BY count(c6) ASC NULLS LAST, sum("C 1") ASC NULLS LAST LIMIT 1::bigint FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT count(c6), sum("C 1"), avg("C 1"), min(c2), max("C 1"), stddev(c2), c2 FROM "S 1"."T 1" WHERE ((c2 < 5)) GROUP BY 7 ORDER BY count(c6) ASC NULLS LAST, sum("C 1") ASC NULLS LAST LIMIT 1::bigint Limit Output: (count(c6)), (sum("C 1")), (avg("C 1")), (min(c2)), (max("C 1")), (stddev(c2)), c2 -> Sort Output: (count(c6)), (sum("C 1")), (avg("C 1")), (min(c2)), (max("C 1")), (stddev(c2)), c2 Sort Key: (count("T 1".c6)), (sum("T 1"."C 1")) -> HashAggregate Output: count(c6), sum("C 1"), avg("C 1"), min(c2), max("C 1"), stddev(c2), c2 Group By Key: "T 1".c2 -> Partition Iterator Output: c2, c6, "C 1" Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: c2, c6, "C 1" Filter: ("T 1".c2 < 5) Selected Partitions: 1..2 (24 rows) select count(c6), sum(c1), avg(c1), min(c2), max(c1), stddev(c2), sum(c1) * (random() <= 1)::int as sum2 from ft1 where c2 < 5 group by c2 order by 1, 2 limit 1; count | sum | avg | min | max | stddev | sum2 -------+-------+----------------------+-----+-----+--------+------- 100 | 49600 | 496.0000000000000000 | 1 | 991 | 0 | 49600 (1 row) -- Aggregate is not pushed down as aggregation contains random() explain (verbose, costs off) select sum(c1 * (random() <= 1)::int) as sum, avg(c1) from ft1; QUERY PLAN ----------------------------------------------------------------------------- Aggregate Output: sum((c1 * ((random() <= 1::double precision))::integer)), avg(c1) -> Foreign Scan on public.ft1 Output: c1 Node ID: 1 Remote SQL: SELECT "C 1" FROM "S 1"."T 1" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1" FROM "S 1"."T 1" Partition Iterator Output: "C 1" Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1" Selected Partitions: 1..2 (16 rows) -- Aggregate over join query explain (verbose, costs off) select count(*), sum(t1.c1), avg(t2.c1) from ft1 t1 inner join ft1 t2 on (t1.c2 = t2.c2) where t1.c2 = 6; QUERY PLAN ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: (count(*)), (sum(t1.c1)), (avg(t2.c1)) Node ID: 1 Relations: Aggregate on ((public.ft1 t1) INNER JOIN (public.ft1 t2)) Remote SQL: SELECT count(*), sum(r1."C 1"), avg(r2."C 1") FROM ("S 1"."T 1" r1 INNER JOIN "S 1"."T 1" r2 ON (((r2.c2 = 6)) AND ((r1.c2 = 6)))) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT count(*), sum(r1."C 1"), avg(r2."C 1") FROM ("S 1"."T 1" r1 INNER JOIN "S 1"."T 1" r2 ON (((r2.c2 = 6)) AND ((r1.c2 = 6)))) Aggregate Output: count(*), sum(r1."C 1"), avg(r2."C 1") -> Nested Loop Output: r1."C 1", r2."C 1" -> Partition Iterator Output: r1."C 1", r1.c2, r1.c3, r1.c4, r1.c5, r1.c6, r1.c7, r1.c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" r1 Output: r1."C 1", r1.c2, r1.c3, r1.c4, r1.c5, r1.c6, r1.c7, r1.c8 Filter: (r1.c2 = 6) Selected Partitions: 1..2 -> Materialize Output: r2."C 1" -> Partition Iterator Output: r2."C 1" Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" r2 Output: r2."C 1" Filter: (r2.c2 = 6) Selected Partitions: 1..2 (29 rows) select count(*), sum(t1.c1), avg(t2.c1) from ft1 t1 inner join ft1 t2 on (t1.c2 = t2.c2) where t1.c2 = 6; count | sum | avg -------+---------+---------------------- 10000 | 5010000 | 501.0000000000000000 (1 row) -- Not pushed down due to local conditions present in underneath input rel explain (verbose, costs off) select sum(t1.c1), count(t2.c1) from ft1 t1 inner join ft2 t2 on (t1.c1 = t2.c1) where ((t1.c1 * t2.c1)/(t1.c1 * t2.c1)) * random() <= 1; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------- Aggregate Output: sum(t1.c1), count(t2.c1) -> Foreign Scan Output: t1.c1, t2.c1 Filter: ((((t1.c1 * t2.c1) / (t1.c1 * t2.c1)) * random()) <= 1::double precision) Node ID: 1 Relations: (public.ft1 t1) INNER JOIN (public.ft2 t2) Remote SQL: SELECT r1."C 1", r2."C 1" FROM ("S 1"."T 1" r1 INNER JOIN "S 1"."T 1" r2 ON (((r1."C 1" = r2."C 1")))) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r1."C 1", r2."C 1" FROM ("S 1"."T 1" r1 INNER JOIN "S 1"."T 1" r2 ON (((r1."C 1" = r2."C 1")))) Hash Join Output: r1."C 1", r2."C 1" Hash Cond: (r1."C 1" = r2."C 1") -> Partition Iterator Output: r1."C 1", r1.c2, r1.c3, r1.c4, r1.c5, r1.c6, r1.c7, r1.c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" r1 Output: r1."C 1", r1.c2, r1.c3, r1.c4, r1.c5, r1.c6, r1.c7, r1.c8 Selected Partitions: 1..2 -> Hash Output: r2."C 1" -> Partition Iterator Output: r2."C 1" Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" r2 Output: r2."C 1" Selected Partitions: 1..2 (29 rows) -- GROUP BY clause having expressions explain (verbose, costs off) select c2/2, sum(c2) * (c2/2) from ft1 group by c2/2 order by c2/2; QUERY PLAN --------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: ((c2 / 2)), (((sum(c2))::double precision * (c2 / 2))) Node ID: 1 Relations: Aggregate on (public.ft1) Remote SQL: SELECT (c2 / 2), (sum(c2) * (c2 / 2)) FROM "S 1"."T 1" GROUP BY 1 ORDER BY (c2 / 2) ASC NULLS LAST FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT (c2 / 2), (sum(c2) * (c2 / 2)) FROM "S 1"."T 1" GROUP BY 1 ORDER BY (c2 / 2) ASC NULLS LAST Sort Output: ((c2 / 2)), (((sum(c2))::double precision * ((c2 / 2)))) Sort Key: (("T 1".c2 / 2)) -> HashAggregate Output: ((c2 / 2)), ((sum(c2))::double precision * ((c2 / 2))) Group By Key: ("T 1".c2 / 2) -> Partition Iterator Output: (c2 / 2), c2 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: (c2 / 2), c2 Selected Partitions: 1..2 (21 rows) select c2/2, sum(c2) * (c2/2) from ft1 group by c2/2 order by c2/2; ?column? | ?column? ----------+---------- 0 | 0 .5 | 50 1 | 200 1.5 | 450 2 | 800 2.5 | 1250 3 | 1800 3.5 | 2450 4 | 3200 4.5 | 4050 (10 rows) -- Aggregates in subquery are pushed down. explain (verbose, costs off) select count(x.a), sum(x.a) from (select c2 a, sum(c1) b from ft1 group by c2, sqrt(c1) order by 1, 2) x; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------------------------ Aggregate Output: count(ft1.c2), sum(ft1.c2) -> Foreign Scan Output: ft1.c2, (sum(ft1.c1)), (sqrt((ft1.c1)::double precision)) Node ID: 1 Relations: Aggregate on (public.ft1) Remote SQL: SELECT c2, sum("C 1"), sqrt("C 1") FROM "S 1"."T 1" GROUP BY 1, 3 ORDER BY c2 ASC NULLS LAST, sum("C 1") ASC NULLS LAST FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c2, sum("C 1"), sqrt("C 1") FROM "S 1"."T 1" GROUP BY 1, 3 ORDER BY c2 ASC NULLS LAST, sum("C 1") ASC NULLS LAST Sort Output: c2, (sum("C 1")), (sqrt(("C 1")::double precision)) Sort Key: "T 1".c2, (sum("T 1"."C 1")) -> HashAggregate Output: c2, sum("C 1"), (sqrt(("C 1")::double precision)) Group By Key: "T 1".c2, sqrt(("T 1"."C 1")::double precision) -> Partition Iterator Output: c2, sqrt(("C 1")::double precision), "C 1" Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: c2, sqrt(("C 1")::double precision), "C 1" Selected Partitions: 1..2 (23 rows) select count(x.a), sum(x.a) from (select c2 a, sum(c1) b from ft1 group by c2, sqrt(c1) order by 1, 2) x; count | sum -------+------ 1000 | 4500 (1 row) -- Aggregate is still pushed down by taking unshippable expression out explain (verbose, costs off) select c2 * (random() <= 1)::int as sum1, sum(c1) * c2 as sum2 from ft1 group by c2 order by 1, 2; QUERY PLAN ------------------------------------------------------------------------------------------------- Sort Output: ((c2 * ((random() <= 1::double precision))::integer)), ((sum(c1) * c2)), c2 Sort Key: ((ft1.c2 * ((random() <= 1::double precision))::integer)), ((sum(ft1.c1) * ft1.c2)) -> HashAggregate Output: (c2 * ((random() <= 1::double precision))::integer), (sum(c1) * c2), c2 Group By Key: ft1.c2 -> Foreign Scan on public.ft1 Output: c2, c1 Node ID: 1 Remote SQL: SELECT "C 1", c2 FROM "S 1"."T 1" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2 FROM "S 1"."T 1" Partition Iterator Output: "C 1", c2 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2 Selected Partitions: 1..2 (20 rows) select c2 * (random() <= 1)::int as sum1, sum(c1) * c2 as sum2 from ft1 group by c2 order by 1, 2; sum1 | sum2 ------+-------- 0 | 0 1 | 49600 2 | 99400 3 | 149400 4 | 199600 5 | 250000 6 | 300600 7 | 351400 8 | 402400 9 | 453600 (10 rows) -- Aggregate with unshippable GROUP BY clause are not pushed explain (verbose, costs off) select c2 * (random() <= 1)::int as c2 from ft2 group by c2 * (random() <= 1)::int order by 1; QUERY PLAN ----------------------------------------------------------------------------- Group Output: ((c2 * ((random() <= 1::double precision))::integer)) Group By Key: ((ft2.c2 * ((random() <= 1::double precision))::integer)) -> Sort Output: ((c2 * ((random() <= 1::double precision))::integer)) Sort Key: ((ft2.c2 * ((random() <= 1::double precision))::integer)) -> Foreign Scan on public.ft2 Output: (c2 * ((random() <= 1::double precision))::integer) Node ID: 1 Remote SQL: SELECT c2 FROM "S 1"."T 1" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c2 FROM "S 1"."T 1" Partition Iterator Output: c2 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: c2 Selected Partitions: 1..2 (20 rows) -- GROUP BY clause in various forms, cardinal, alias and constant expression explain (verbose, costs off) select count(c2) w, c2 x, 5 y, 7.0 z from ft1 group by 2, y, 9.0::int order by 2; QUERY PLAN --------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: (count(c2)), c2, (5), (7.0), (9) Node ID: 1 Relations: Aggregate on (public.ft1) Remote SQL: SELECT count(c2), c2, 5, 7.0, 9 FROM "S 1"."T 1" GROUP BY 2, 3, 5 ORDER BY c2 ASC NULLS LAST FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT count(c2), c2, 5, 7.0, 9 FROM "S 1"."T 1" GROUP BY 2, 3, 5 ORDER BY c2 ASC NULLS LAST Sort Output: (count(c2)), c2, (5), (7.0), (9) Sort Key: "T 1".c2 -> HashAggregate Output: count(c2), c2, (5), 7.0, (9) Group By Key: "T 1".c2, 5, 9 -> Partition Iterator Output: c2, 5, 9 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: c2, 5, 9 Selected Partitions: 1..2 (21 rows) select count(c2) w, c2 x, 5 y, 7.0 z from ft1 group by 2, y, 9.0::int order by 2; w | x | y | z -----+---+---+----- 100 | 0 | 5 | 7.0 100 | 1 | 5 | 7.0 100 | 2 | 5 | 7.0 100 | 3 | 5 | 7.0 100 | 4 | 5 | 7.0 100 | 5 | 5 | 7.0 100 | 6 | 5 | 7.0 100 | 7 | 5 | 7.0 100 | 8 | 5 | 7.0 100 | 9 | 5 | 7.0 (10 rows) -- GROUP BY clause referring to same column multiple times -- Also, ORDER BY contains an aggregate function explain (verbose, costs off) select c2, c2 from ft1 where c2 > 6 group by 1, 2 order by sum(c1); QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: c2, c2, (sum(c1)) Node ID: 1 Relations: Aggregate on (public.ft1) Remote SQL: SELECT c2, c2, sum("C 1") FROM "S 1"."T 1" WHERE ((c2 > 6)) GROUP BY 1, 2 ORDER BY sum("C 1") ASC NULLS LAST FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c2, c2, sum("C 1") FROM "S 1"."T 1" WHERE ((c2 > 6)) GROUP BY 1, 2 ORDER BY sum("C 1") ASC NULLS LAST Sort Output: c2, c2, (sum("C 1")) Sort Key: (sum("T 1"."C 1")) -> HashAggregate Output: c2, c2, sum("C 1") Group By Key: "T 1".c2, "T 1".c2 -> Partition Iterator Output: c2, "C 1" Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: c2, "C 1" Filter: ("T 1".c2 > 6) Selected Partitions: 1..2 (22 rows) select c2, c2 from ft1 where c2 > 6 group by 1, 2 order by sum(c1); c2 | c2 ----+---- 7 | 7 8 | 8 9 | 9 (3 rows) -- Testing HAVING clause shippability explain (verbose, costs off) select c2, sum(c1) from ft2 group by c2 having avg(c1) < 500 and sum(c1) < 49800 order by c2; QUERY PLAN --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: c2, (sum(c1)) Node ID: 1 Relations: Aggregate on (public.ft2) Remote SQL: SELECT c2, sum("C 1") FROM "S 1"."T 1" GROUP BY 1 HAVING ((avg("C 1") < 500::numeric)) AND ((sum("C 1") < 49800)) ORDER BY c2 ASC NULLS LAST FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c2, sum("C 1") FROM "S 1"."T 1" GROUP BY 1 HAVING ((avg("C 1") < 500::numeric)) AND ((sum("C 1") < 49800)) ORDER BY c2 ASC NULLS LAST Sort Output: c2, (sum("C 1")) Sort Key: "T 1".c2 -> HashAggregate Output: c2, sum("C 1") Group By Key: "T 1".c2 Filter: ((avg("T 1"."C 1") < 500::numeric) AND (sum("T 1"."C 1") < 49800)) -> Partition Iterator Output: c2, "C 1" Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: c2, "C 1" Selected Partitions: 1..2 (22 rows) select c2, sum(c1) from ft2 group by c2 having avg(c1) < 500 and sum(c1) < 49800 order by c2; c2 | sum ----+------- 1 | 49600 2 | 49700 (2 rows) -- Unshippable HAVING clause will be evaluated locally, and other qual in HAVING clause is pushed down explain (verbose, costs off) select count(*) from (select c5, count(c1) from ft1 group by c5, sqrt(c2) having (avg(c1) / avg(c1)) * random() <= 1 and avg(c1) < 500) x; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------------------ Aggregate Output: count(*) -> Foreign Scan Output: ft1.c5, (count(ft1.c1)), (sqrt((ft1.c2)::double precision)) Filter: (((((avg(ft1.c1)) / (avg(ft1.c1))))::double precision * random()) <= 1::double precision) Node ID: 1 Relations: Aggregate on (public.ft1) Remote SQL: SELECT c5, count("C 1"), sqrt(c2), avg("C 1") FROM "S 1"."T 1" GROUP BY 1, 3 HAVING ((avg("C 1") < 500::numeric)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c5, count("C 1"), sqrt(c2), avg("C 1") FROM "S 1"."T 1" GROUP BY 1, 3 HAVING ((avg("C 1") < 500::numeric)) HashAggregate Output: c5, count("C 1"), (sqrt((c2)::double precision)), avg("C 1") Group By Key: "T 1".c5, sqrt(("T 1".c2)::double precision) Filter: (avg("T 1"."C 1") < 500::numeric) -> Partition Iterator Output: c5, sqrt((c2)::double precision), "C 1" Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: c5, sqrt((c2)::double precision), "C 1" Selected Partitions: 1..2 (22 rows) select count(*) from (select c5, count(c1) from ft1 group by c5, sqrt(c2) having (avg(c1) / avg(c1)) * random() <= 1 and avg(c1) < 500) x; count ------- 49 (1 row) -- Aggregate in HAVING clause is not pushable, and thus aggregation is not pushed down explain (verbose, costs off) select sum(c1) from ft1 group by c2 having avg(c1 * (random() <= 1)::int) > 100 order by 1; QUERY PLAN ----------------------------------------------------------------------------------------------- Sort Output: (sum(c1)), c2 Sort Key: (sum(ft1.c1)) -> HashAggregate Output: sum(c1), c2 Group By Key: ft1.c2 Filter: (avg((ft1.c1 * ((random() <= 1::double precision))::integer)) > 100::numeric) -> Foreign Scan on public.ft1 Output: c2, c1 Node ID: 1 Remote SQL: SELECT "C 1", c2 FROM "S 1"."T 1" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2 FROM "S 1"."T 1" Partition Iterator Output: "C 1", c2 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2 Selected Partitions: 1..2 (21 rows) -- Remote aggregate in combination with a local Param (for the output -- of an initplan) can be trouble, per bug #15781 explain (verbose, costs off) select exists(select 1 from pg_enum), sum(c1) from ft1; QUERY PLAN ----------------------------------------------------------------------------- Foreign Scan Output: $0, (sum(ft1.c1)) Node ID: 1 Relations: Aggregate on (public.ft1) Remote SQL: SELECT sum("C 1") FROM "S 1"."T 1" InitPlan 1 (returns $0) -> Seq Scan on pg_catalog.pg_enum FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT sum("C 1") FROM "S 1"."T 1" Aggregate Output: sum("C 1") -> Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Selected Partitions: 1..2 (19 rows) select exists(select 1 from pg_enum), sum(c1) from ft1; exists | sum --------+-------- t | 500500 (1 row) explain (verbose, costs off) select exists(select 1 from pg_enum), sum(c1) from ft1 group by 1; QUERY PLAN ------------------------------------------------------------------------ GroupAggregate Output: ($0), sum(ft1.c1) Group By Key: $0 InitPlan 1 (returns $0) -> Seq Scan on pg_catalog.pg_enum -> Foreign Scan on public.ft1 Output: $0, ft1.c1 Node ID: 1 Remote SQL: SELECT "C 1" FROM "S 1"."T 1" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1" FROM "S 1"."T 1" Partition Iterator Output: "C 1" Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1" Selected Partitions: 1..2 (19 rows) select exists(select 1 from pg_enum), sum(c1) from ft1 group by 1; exists | sum --------+-------- t | 500500 (1 row) -- Testing ORDER BY, DISTINCT, FILTER, Ordered-sets and VARIADIC within aggregates -- ORDER BY within aggregate, same column used to order explain (verbose, costs off) select array_agg(c1 order by c1) from ft1 where c1 < 100 group by c2 order by 1; QUERY PLAN ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: (array_agg(c1 ORDER BY c1)), c2 Node ID: 1 Relations: Aggregate on (public.ft1) Remote SQL: SELECT array_agg("C 1" ORDER BY "C 1" ASC NULLS LAST), c2 FROM "S 1"."T 1" WHERE (("C 1" < 100)) GROUP BY 2 ORDER BY array_agg("C 1" ORDER BY "C 1" ASC NULLS LAST) ASC NULLS LAST FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT array_agg("C 1" ORDER BY "C 1" ASC NULLS LAST), c2 FROM "S 1"."T 1" WHERE (("C 1" < 100)) GROUP BY 2 ORDER BY array_agg("C 1" ORDER BY "C 1" ASC NULLS LAST) ASC NULLS LAST Sort Output: (array_agg("C 1" ORDER BY "C 1")), c2 Sort Key: (array_agg("T 1"."C 1" ORDER BY "T 1"."C 1")) -> GroupAggregate Output: array_agg("C 1" ORDER BY "C 1"), c2 Group By Key: "T 1".c2 -> Sort Output: c2, "C 1" Sort Key: "T 1".c2 -> Partitioned Index Scan using t1_pkey on "S 1"."T 1" Output: c2, "C 1" Index Cond: ("T 1"."C 1" < 100) Selected Partitions: 1 (22 rows) select array_agg(c1 order by c1) from ft1 where c1 < 100 group by c2 order by 1; array_agg -------------------------------- {1,11,21,31,41,51,61,71,81,91} {2,12,22,32,42,52,62,72,82,92} {3,13,23,33,43,53,63,73,83,93} {4,14,24,34,44,54,64,74,84,94} {5,15,25,35,45,55,65,75,85,95} {6,16,26,36,46,56,66,76,86,96} {7,17,27,37,47,57,67,77,87,97} {8,18,28,38,48,58,68,78,88,98} {9,19,29,39,49,59,69,79,89,99} {10,20,30,40,50,60,70,80,90} (10 rows) -- ORDER BY within aggregate, different column used to order also using DESC explain (verbose, costs off) select array_agg(c5 order by c1 desc) from ft2 where c2 = 6 and c1 < 50; QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: (array_agg(c5 ORDER BY c1 DESC)) Node ID: 1 Relations: Aggregate on (public.ft2) Remote SQL: SELECT array_agg(c5 ORDER BY "C 1" DESC NULLS FIRST) FROM "S 1"."T 1" WHERE (("C 1" < 50)) AND ((c2 = 6)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT array_agg(c5 ORDER BY "C 1" DESC NULLS FIRST) FROM "S 1"."T 1" WHERE (("C 1" < 50)) AND ((c2 = 6)) Aggregate Output: array_agg(c5 ORDER BY "C 1" DESC) -> Partitioned Index Scan using t1_pkey on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Index Cond: ("T 1"."C 1" < 50) Filter: ("T 1".c2 = 6) Selected Partitions: 1 (16 rows) select array_agg(c5 order by c1 desc) from ft2 where c2 = 6 and c1 < 50; array_agg ------------------------------------------------------------------------------------------------------------------------------------------ {"Mon Feb 16 00:00:00 1970","Fri Feb 06 00:00:00 1970","Tue Jan 27 00:00:00 1970","Sat Jan 17 00:00:00 1970","Wed Jan 07 00:00:00 1970"} (1 row) -- DISTINCT within aggregate explain (verbose, costs off) select array_agg(distinct (t1.c1)%5) from ft4 t1 full join ft5 t2 on (t1.c1 = t2.c1) where t1.c1 < 20 or (t1.c1 is null and t2.c1 < 5) group by (t2.c1)%3 order by 1; QUERY PLAN --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: (array_agg(DISTINCT (t1.c1 % 5))), ((t2.c1 % 3)) Node ID: 1 Relations: Aggregate on ((public.ft4 t1) FULL JOIN (public.ft5 t2)) Remote SQL: SELECT array_agg(DISTINCT (r1.c1 % 5)), (r2.c1 % 3) FROM ("S 1"."T 3" r1 FULL JOIN "S 1"."T 4" r2 ON (((r1.c1 = r2.c1)))) WHERE (((r1.c1 < 20) OR ((r1.c1 IS NULL) AND (r2.c1 < 5)))) GROUP BY 2 ORDER BY array_agg(DISTINCT (r1.c1 % 5)) ASC NULLS LAST FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT array_agg(DISTINCT (r1.c1 % 5)), (r2.c1 % 3) FROM ("S 1"."T 3" r1 FULL JOIN "S 1"."T 4" r2 ON (((r1.c1 = r2.c1)))) WHERE (((r1.c1 < 20) OR ((r1.c1 IS NULL) AND (r2.c1 < 5)))) GROUP BY 2 ORDER BY array_agg(DISTINCT (r1.c1 % 5)) ASC NULLS LAST Sort Output: (array_agg(DISTINCT (r1.c1 % 5))), ((r2.c1 % 3)) Sort Key: (array_agg(DISTINCT (r1.c1 % 5))) -> GroupAggregate Output: array_agg(DISTINCT (r1.c1 % 5)), ((r2.c1 % 3)) Group By Key: ((r2.c1 % 3)) -> Sort Output: ((r2.c1 % 3)), r1.c1 Sort Key: ((r2.c1 % 3)) -> Hash Full Join Output: (r2.c1 % 3), r1.c1 Hash Cond: (r1.c1 = r2.c1) Filter: ((r1.c1 < 20) OR ((r1.c1 IS NULL) AND (r2.c1 < 5))) -> Partition Iterator Output: r1.c1, r1.c2, r1.c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" r1 Output: r1.c1, r1.c2, r1.c3 Selected Partitions: 1..2 -> Hash Output: r2.c1 -> Partition Iterator Output: r2.c1 Iterations: 2, Sub Iterations: 4 -> Partitioned Seq Scan on "S 1"."T 4" r2 Output: r2.c1 Selected Partitions: 1..2 Selected Subpartitions: ALL (37 rows) select array_agg(distinct (t1.c1)%5) from ft4 t1 full join ft5 t2 on (t1.c1 = t2.c1) where t1.c1 < 20 or (t1.c1 is null and t2.c1 < 5) group by (t2.c1)%3 order by 1; array_agg -------------- {0,1,2,3,4} {1,2,3,NULL} (2 rows) -- DISTINCT combined with ORDER BY within aggregate explain (verbose, costs off) select array_agg(distinct (t1.c1)%5 order by (t1.c1)%5) from ft4 t1 full join ft5 t2 on (t1.c1 = t2.c1) where t1.c1 < 20 or (t1.c1 is null and t2.c1 < 5) group by (t2.c1)%3 order by 1; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: (array_agg(DISTINCT (t1.c1 % 5) ORDER BY (t1.c1 % 5))), ((t2.c1 % 3)) Node ID: 1 Relations: Aggregate on ((public.ft4 t1) FULL JOIN (public.ft5 t2)) Remote SQL: SELECT array_agg(DISTINCT (r1.c1 % 5) ORDER BY ((r1.c1 % 5)) ASC NULLS LAST), (r2.c1 % 3) FROM ("S 1"."T 3" r1 FULL JOIN "S 1"."T 4" r2 ON (((r1.c1 = r2.c1)))) WHERE (((r1.c1 < 20) OR ((r1.c1 IS NULL) AND (r2.c1 < 5)))) GROUP BY 2 ORDER BY array_agg(DISTINCT (r1.c1 % 5) ORDER BY ((r1.c1 % 5)) ASC NULLS LAST) ASC NULLS LAST FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT array_agg(DISTINCT (r1.c1 % 5) ORDER BY ((r1.c1 % 5)) ASC NULLS LAST), (r2.c1 % 3) FROM ("S 1"."T 3" r1 FULL JOIN "S 1"."T 4" r2 ON (((r1.c1 = r2.c1)))) WHERE (((r1.c1 < 20) OR ((r1.c1 IS NULL) AND (r2.c1 < 5)))) GROUP BY 2 ORDER BY array_agg(DISTINCT (r1.c1 % 5) ORDER BY ((r1.c1 % 5)) ASC NULLS LAST) ASC NULLS LAST Sort Output: (array_agg(DISTINCT (r1.c1 % 5) ORDER BY (r1.c1 % 5))), ((r2.c1 % 3)) Sort Key: (array_agg(DISTINCT (r1.c1 % 5) ORDER BY (r1.c1 % 5))) -> GroupAggregate Output: array_agg(DISTINCT (r1.c1 % 5) ORDER BY (r1.c1 % 5)), ((r2.c1 % 3)) Group By Key: ((r2.c1 % 3)) -> Sort Output: ((r2.c1 % 3)), r1.c1 Sort Key: ((r2.c1 % 3)) -> Hash Full Join Output: (r2.c1 % 3), r1.c1 Hash Cond: (r1.c1 = r2.c1) Filter: ((r1.c1 < 20) OR ((r1.c1 IS NULL) AND (r2.c1 < 5))) -> Partition Iterator Output: r1.c1, r1.c2, r1.c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" r1 Output: r1.c1, r1.c2, r1.c3 Selected Partitions: 1..2 -> Hash Output: r2.c1 -> Partition Iterator Output: r2.c1 Iterations: 2, Sub Iterations: 4 -> Partitioned Seq Scan on "S 1"."T 4" r2 Output: r2.c1 Selected Partitions: 1..2 Selected Subpartitions: ALL (37 rows) select array_agg(distinct (t1.c1)%5 order by (t1.c1)%5) from ft4 t1 full join ft5 t2 on (t1.c1 = t2.c1) where t1.c1 < 20 or (t1.c1 is null and t2.c1 < 5) group by (t2.c1)%3 order by 1; array_agg -------------- {0,1,2,3,4} {1,2,3,NULL} (2 rows) explain (verbose, costs off) select array_agg(distinct (t1.c1)%5 order by (t1.c1)%5 desc nulls last) from ft4 t1 full join ft5 t2 on (t1.c1 = t2.c1) where t1.c1 < 20 or (t1.c1 is null and t2.c1 < 5) group by (t2.c1)%3 order by 1; QUERY PLAN --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: (array_agg(DISTINCT (t1.c1 % 5) ORDER BY (t1.c1 % 5) DESC NULLS LAST)), ((t2.c1 % 3)) Node ID: 1 Relations: Aggregate on ((public.ft4 t1) FULL JOIN (public.ft5 t2)) Remote SQL: SELECT array_agg(DISTINCT (r1.c1 % 5) ORDER BY ((r1.c1 % 5)) DESC NULLS LAST), (r2.c1 % 3) FROM ("S 1"."T 3" r1 FULL JOIN "S 1"."T 4" r2 ON (((r1.c1 = r2.c1)))) WHERE (((r1.c1 < 20) OR ((r1.c1 IS NULL) AND (r2.c1 < 5)))) GROUP BY 2 ORDER BY array_agg(DISTINCT (r1.c1 % 5) ORDER BY ((r1.c1 % 5)) DESC NULLS LAST) ASC NULLS LAST FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT array_agg(DISTINCT (r1.c1 % 5) ORDER BY ((r1.c1 % 5)) DESC NULLS LAST), (r2.c1 % 3) FROM ("S 1"."T 3" r1 FULL JOIN "S 1"."T 4" r2 ON (((r1.c1 = r2.c1)))) WHERE (((r1.c1 < 20) OR ((r1.c1 IS NULL) AND (r2.c1 < 5)))) GROUP BY 2 ORDER BY array_agg(DISTINCT (r1.c1 % 5) ORDER BY ((r1.c1 % 5)) DESC NULLS LAST) ASC NULLS LAST Sort Output: (array_agg(DISTINCT (r1.c1 % 5) ORDER BY (r1.c1 % 5) DESC NULLS LAST)), ((r2.c1 % 3)) Sort Key: (array_agg(DISTINCT (r1.c1 % 5) ORDER BY (r1.c1 % 5) DESC NULLS LAST)) -> GroupAggregate Output: array_agg(DISTINCT (r1.c1 % 5) ORDER BY (r1.c1 % 5) DESC NULLS LAST), ((r2.c1 % 3)) Group By Key: ((r2.c1 % 3)) -> Sort Output: ((r2.c1 % 3)), r1.c1 Sort Key: ((r2.c1 % 3)) -> Hash Full Join Output: (r2.c1 % 3), r1.c1 Hash Cond: (r1.c1 = r2.c1) Filter: ((r1.c1 < 20) OR ((r1.c1 IS NULL) AND (r2.c1 < 5))) -> Partition Iterator Output: r1.c1, r1.c2, r1.c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" r1 Output: r1.c1, r1.c2, r1.c3 Selected Partitions: 1..2 -> Hash Output: r2.c1 -> Partition Iterator Output: r2.c1 Iterations: 2, Sub Iterations: 4 -> Partitioned Seq Scan on "S 1"."T 4" r2 Output: r2.c1 Selected Partitions: 1..2 Selected Subpartitions: ALL (37 rows) select array_agg(distinct (t1.c1)%5 order by (t1.c1)%5 desc nulls last) from ft4 t1 full join ft5 t2 on (t1.c1 = t2.c1) where t1.c1 < 20 or (t1.c1 is null and t2.c1 < 5) group by (t2.c1)%3 order by 1; array_agg -------------- {3,2,1,NULL} {4,3,2,1,0} (2 rows) --nspt FILTER within aggregate -- openGauss not support FILTER within aggregate, leve a err case, make others run as normal explain (verbose, costs off) select sum(c1) filter (where c1 < 100 and c2 > 5) from ft1 group by c2 order by 1 nulls last; ERROR: syntax error at or near "filter" LINE 2: select sum(c1) filter (where c1 < 100 and c2 > 5) from ft1 g... ^ select sum(c1) filter (where c1 < 100 and c2 > 5) from ft1 group by c2 order by 1 nulls last; ERROR: syntax error at or near "filter" LINE 1: select sum(c1) filter (where c1 < 100 and c2 > 5) from ft1 g... ^ explain (verbose, costs off) select sum(c1)/* filter (where c1 < 100 and c2 > 5)*/ from ft1 group by c2 order by 1 nulls last; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: (sum(c1)), c2 Node ID: 1 Relations: Aggregate on (public.ft1) Remote SQL: SELECT sum("C 1"), c2 FROM "S 1"."T 1" GROUP BY 2 ORDER BY sum("C 1") ASC NULLS LAST FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT sum("C 1"), c2 FROM "S 1"."T 1" GROUP BY 2 ORDER BY sum("C 1") ASC NULLS LAST Sort Output: (sum("C 1")), c2 Sort Key: (sum("T 1"."C 1")) -> HashAggregate Output: sum("C 1"), c2 Group By Key: "T 1".c2 -> Partition Iterator Output: c2, "C 1" Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: c2, "C 1" Selected Partitions: 1..2 (21 rows) select sum(c1)/* filter (where c1 < 100 and c2 > 5)*/ from ft1 group by c2 order by 1 nulls last; sum ------- 49600 49700 49800 49900 50000 50100 50200 50300 50400 50500 (10 rows) -- DISTINCT, ORDER BY and FILTER within aggregate explain (verbose, costs off) select sum(c1%3), sum(distinct c1%3 order by c1%3)/* filter (where c1%3 < 2)*/, c2 from ft1 where c2 = 6 group by c2; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Foreign Scan Output: (sum((c1 % 3))), (sum(DISTINCT (c1 % 3) ORDER BY (c1 % 3))), c2 Node ID: 1 Relations: Aggregate on (public.ft1) Remote SQL: SELECT sum(("C 1" % 3)), sum(DISTINCT ("C 1" % 3) ORDER BY (("C 1" % 3)) ASC NULLS LAST), c2 FROM "S 1"."T 1" WHERE ((c2 = 6)) GROUP BY 3 FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT sum(("C 1" % 3)), sum(DISTINCT ("C 1" % 3) ORDER BY (("C 1" % 3)) ASC NULLS LAST), c2 FROM "S 1"."T 1" WHERE ((c2 = 6)) GROUP BY 3 GroupAggregate Output: sum(("C 1" % 3)), sum(DISTINCT ("C 1" % 3) ORDER BY ("C 1" % 3)), c2 Group By Key: "T 1".c2 -> Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Filter: ("T 1".c2 = 6) Selected Partitions: 1..2 (19 rows) select sum(c1%3), sum(distinct c1%3 order by c1%3)/* filter (where c1%3 < 2)*/, c2 from ft1 where c2 = 6 group by c2; sum | sum | c2 -----+-----+---- 99 | 3 | 6 (1 row) -- Outer query is aggregation query explain (verbose, costs off) select distinct (select count(*) /*filter (where t2.c2 = 6 and t2.c1 < 10)*/ from ft1 t1 where t1.c1 = 6) from ft2 t2 where t2.c2 % 6 = 0 order by 1; QUERY PLAN ---------------------------------------------------------------------------------------------- Unique Output: ($0) InitPlan 1 (returns $0) -> Aggregate Output: count(*) -> Foreign Scan on public.ft1 t1 Node ID: 1 Remote SQL: SELECT NULL FROM "S 1"."T 1" WHERE (("C 1" = 6)) -> Foreign Scan on public.ft2 t2 Output: $0 Node ID: 2 Remote SQL: SELECT NULL FROM "S 1"."T 1" WHERE (((c2 % 6) = 0)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT NULL FROM "S 1"."T 1" WHERE (("C 1" = 6)) Partitioned Index Only Scan using t1_pkey on "S 1"."T 1" Output: NULL::text Index Cond: ("T 1"."C 1" = 6) Selected Partitions: 1 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT NULL FROM "S 1"."T 1" WHERE (((c2 % 6) = 0)) Partition Iterator Output: NULL::text Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: NULL::text Filter: (("T 1".c2 % 6) = 0) Selected Partitions: 1..2 (28 rows) select distinct (select count(*) /*filter (where t2.c2 = 6 and t2.c1 < 10)*/ from ft1 t1 where t1.c1 = 6) from ft2 t2 where t2.c2 % 6 = 0 order by 1; count ------- 1 (1 row) -- Inner query is aggregation query explain (verbose, costs off) select distinct (select count(t1.c1) /*filter (where t2.c2 = 6 and t2.c1 < 10)*/ from ft1 t1 where t1.c1 = 6) from ft2 t2 where t2.c2 % 6 = 0 order by 1; QUERY PLAN ---------------------------------------------------------------------------------------------- Unique Output: ($0) InitPlan 1 (returns $0) -> Aggregate Output: count(t1.c1) -> Foreign Scan on public.ft1 t1 Output: t1.c1 Node ID: 1 Remote SQL: SELECT "C 1" FROM "S 1"."T 1" WHERE (("C 1" = 6)) -> Foreign Scan on public.ft2 t2 Output: $0 Node ID: 2 Remote SQL: SELECT NULL FROM "S 1"."T 1" WHERE (((c2 % 6) = 0)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1" FROM "S 1"."T 1" WHERE (("C 1" = 6)) Partitioned Index Only Scan using t1_pkey on "S 1"."T 1" Output: "C 1" Index Cond: ("T 1"."C 1" = 6) Selected Partitions: 1 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT NULL FROM "S 1"."T 1" WHERE (((c2 % 6) = 0)) Partition Iterator Output: NULL::text Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: NULL::text Filter: (("T 1".c2 % 6) = 0) Selected Partitions: 1..2 (29 rows) select distinct (select count(t1.c1) /*filter (where t2.c2 = 6 and t2.c1 < 10)*/ from ft1 t1 where t1.c1 = 6) from ft2 t2 where t2.c2 % 6 = 0 order by 1; count ------- 1 (1 row) -- Aggregate not pushed down as FILTER condition is not pushable explain (verbose, costs off) select sum(c1) /*filter (where (c1 / c1) * random() <= 1)*/ from ft1 group by c2 order by 1; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: (sum(c1)), c2 Node ID: 1 Relations: Aggregate on (public.ft1) Remote SQL: SELECT sum("C 1"), c2 FROM "S 1"."T 1" GROUP BY 2 ORDER BY sum("C 1") ASC NULLS LAST FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT sum("C 1"), c2 FROM "S 1"."T 1" GROUP BY 2 ORDER BY sum("C 1") ASC NULLS LAST Sort Output: (sum("C 1")), c2 Sort Key: (sum("T 1"."C 1")) -> HashAggregate Output: sum("C 1"), c2 Group By Key: "T 1".c2 -> Partition Iterator Output: c2, "C 1" Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: c2, "C 1" Selected Partitions: 1..2 (21 rows) explain (verbose, costs off) select sum(c2) /*filter (where c2 in (select c2 from ft1 where c2 < 5))*/ from ft1; QUERY PLAN -------------------------------------------------------------------------- Foreign Scan Output: (sum(c2)) Node ID: 1 Relations: Aggregate on (public.ft1) Remote SQL: SELECT sum(c2) FROM "S 1"."T 1" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT sum(c2) FROM "S 1"."T 1" Aggregate Output: sum(c2) -> Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Selected Partitions: 1..2 (17 rows) --nspt Ordered-sets within aggregate --nspt Using multiple arguments within aggregates -- User defined function for user defined aggregate, VARIADIC create function least_accum(anyelement, variadic anyarray) returns anyelement language sql as 'select least($1, min($2[i])) from generate_subscripts($2,1) g(i)'; create aggregate least_agg(variadic items anyarray) ( stype = anyelement, sfunc = least_accum ); ERROR: syntax error at or near "variadic" LINE 1: create aggregate least_agg(variadic items anyarray) ( ^ -- Disable hash aggregation for plan stability. set enable_hashagg to false; -- Not pushed down due to user defined aggregate explain (verbose, costs off) select c2, least_agg(c1) from ft1 group by c2 order by c2; ERROR: function least_agg(integer) does not exist LINE 2: select c2, least_agg(c1) from ft1 group by c2 order by c2; ^ HINT: No function matches the given name and argument types. You might need to add explicit type casts. CONTEXT: referenced column: least_agg -- Add function and aggregate into extension alter extension postgres_fdw add function least_accum(anyelement, variadic anyarray); alter extension postgres_fdw add aggregate least_agg(variadic items anyarray); ERROR: syntax error at or near "variadic" LINE 1: ...er extension postgres_fdw add aggregate least_agg(variadic i... ^ alter server loopback options (set extensions 'postgres_fdw'); ERROR: option "extensions" not found -- Now aggregate will be pushed. Aggregate will display VARIADIC argument. explain (verbose, costs off) select c2, least_agg(c1) from ft1 where c2 < 100 group by c2 order by c2; ERROR: function least_agg(integer) does not exist LINE 2: select c2, least_agg(c1) from ft1 where c2 < 100 group by c2... ^ HINT: No function matches the given name and argument types. You might need to add explicit type casts. CONTEXT: referenced column: least_agg select c2, least_agg(c1) from ft1 where c2 < 100 group by c2 order by c2; ERROR: function least_agg(integer) does not exist LINE 1: select c2, least_agg(c1) from ft1 where c2 < 100 group by c2... ^ HINT: No function matches the given name and argument types. You might need to add explicit type casts. CONTEXT: referenced column: least_agg -- Remove function and aggregate from extension alter extension postgres_fdw drop function least_accum(anyelement, variadic anyarray); alter extension postgres_fdw drop aggregate least_agg(variadic items anyarray); ERROR: syntax error at or near "variadic" LINE 1: ...r extension postgres_fdw drop aggregate least_agg(variadic i... ^ alter server loopback options (set extensions 'postgres_fdw'); ERROR: option "extensions" not found -- Not pushed down as we have dropped objects from extension. explain (verbose, costs off) select c2, least_agg(c1) from ft1 group by c2 order by c2; ERROR: function least_agg(integer) does not exist LINE 2: select c2, least_agg(c1) from ft1 group by c2 order by c2; ^ HINT: No function matches the given name and argument types. You might need to add explicit type casts. CONTEXT: referenced column: least_agg -- Cleanup reset enable_hashagg; drop aggregate least_agg(variadic items anyarray); ERROR: syntax error at or near "variadic" LINE 1: drop aggregate least_agg(variadic items anyarray); ^ drop function least_accum(anyelement, variadic anyarray); --nspt Testing USING OPERATOR() in ORDER BY within aggregate. --nspt For this, we need user defined operators along with operator family and --nspt operator class. Create those and then add them in extension. Note that --nspt user defined objects are considered unshippable unless they are part of --nspt the extension. create operator public.<^ ( leftarg = int4, rightarg = int4, procedure = int4eq ); create operator public.=^ ( leftarg = int4, rightarg = int4, procedure = int4lt ); create operator public.>^ ( leftarg = int4, rightarg = int4, procedure = int4gt ); create operator family my_op_family using btree; create function my_op_cmp(a int, b int) returns int as $$begin return btint4cmp(a, b); end $$ language plpgsql; create operator class my_op_class for type int using btree family my_op_family as operator 1 public.<^, operator 3 public.=^, operator 5 public.>^, function 1 my_op_cmp(int, int); -- NOTICES: -- openGauss not support create operator class. remove the case. If you want to restore the test case later, refer to README in the file header. -- This will not be pushed as sort operator is now removed from the extension. explain (verbose, costs off) select array_agg(c1 order by c1 using operator(public.<^)) from ft2 where c2 = 6 and c1 < 100 group by c2; QUERY PLAN ----------------------------------------------------------------------------------------------------------------- GroupAggregate Output: array_agg(c1 ORDER BY c1 USING <^ NULLS LAST), c2 Group By Key: ft2.c2 -> Foreign Scan on public.ft2 Output: c2, c1 Node ID: 1 Remote SQL: SELECT "C 1", c2 FROM "S 1"."T 1" WHERE (("C 1" < 100)) AND ((c2 = 6)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2 FROM "S 1"."T 1" WHERE (("C 1" < 100)) AND ((c2 = 6)) Partitioned Index Scan using t1_pkey on "S 1"."T 1" Output: "C 1", c2 Index Cond: ("T 1"."C 1" < 100) Filter: ("T 1".c2 = 6) Selected Partitions: 1 (16 rows) -- Cleanup drop operator class my_op_class using btree; drop function my_op_cmp(a int, b int); drop operator family my_op_family using btree; drop operator public.>^(int, int); drop operator public.=^(int, int); drop operator public.<^(int, int); -- Input relation to aggregate push down hook is not safe to pushdown and thus -- the aggregate cannot be pushed down to foreign server. explain (verbose, costs off) select count(t1.c3) from ft2 t1 left join ft2 t2 on (t1.c1 = random() * t2.c2); QUERY PLAN ------------------------------------------------------------------------------------------- Aggregate Output: count(t1.c3) -> Nested Loop Left Join Output: t1.c3 Join Filter: ((t1.c1)::double precision = (random() * (t2.c2)::double precision)) -> Foreign Scan on public.ft2 t1 Output: t1.c3, t1.c1 Node ID: 1 Remote SQL: SELECT "C 1", c3 FROM "S 1"."T 1" -> Materialize Output: t2.c2 -> Foreign Scan on public.ft2 t2 Output: t2.c2 Node ID: 2 Remote SQL: SELECT c2 FROM "S 1"."T 1" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c3 FROM "S 1"."T 1" Partition Iterator Output: "C 1", c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c3 Selected Partitions: 1..2 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c2 FROM "S 1"."T 1" Partition Iterator Output: c2 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: c2 Selected Partitions: 1..2 (32 rows) -- Subquery in FROM clause having aggregate explain (verbose, costs off) select count(*), x.b from ft1, (select c2 a, sum(c1) b from ft1 group by c2) x where ft1.c2 = x.a group by x.b order by 1, 2; QUERY PLAN ----------------------------------------------------------------------------------------------- Sort Output: (count(*)), x.b Sort Key: (count(*)), x.b -> HashAggregate Output: count(*), x.b Group By Key: x.b -> Hash Join Output: x.b Hash Cond: (public.ft1.c2 = x.a) -> Foreign Scan on public.ft1 Output: public.ft1.c2 Node ID: 1 Remote SQL: SELECT c2 FROM "S 1"."T 1" -> Hash Output: x.b, x.a -> Subquery Scan on x Output: x.b, x.a -> Foreign Scan Output: public.ft1.c2, (sum(public.ft1.c1)) Node ID: 2 Relations: Aggregate on (public.ft1) Remote SQL: SELECT c2, sum("C 1") FROM "S 1"."T 1" GROUP BY 1 FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c2 FROM "S 1"."T 1" Partition Iterator Output: c2 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: c2 Selected Partitions: 1..2 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c2, sum("C 1") FROM "S 1"."T 1" GROUP BY 1 HashAggregate Output: c2, sum("C 1") Group By Key: "T 1".c2 -> Partition Iterator Output: c2, "C 1" Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: c2, "C 1" Selected Partitions: 1..2 (42 rows) select count(*), x.b from ft1, (select c2 a, sum(c1) b from ft1 group by c2) x where ft1.c2 = x.a group by x.b order by 1, 2; count | b -------+------- 100 | 49600 100 | 49700 100 | 49800 100 | 49900 100 | 50000 100 | 50100 100 | 50200 100 | 50300 100 | 50400 100 | 50500 (10 rows) -- FULL join with IS NULL check in HAVING explain (verbose, costs off) select avg(t1.c1), sum(t2.c1) from ft4 t1 full join ft5 t2 on (t1.c1 = t2.c1) group by t2.c1 having (avg(t1.c1) is null and sum(t2.c1) < 10) or sum(t2.c1) is null order by 1 nulls last, 2; QUERY PLAN -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: (avg(t1.c1)), (sum(t2.c1)), t2.c1 Node ID: 1 Relations: Aggregate on ((public.ft4 t1) FULL JOIN (public.ft5 t2)) Remote SQL: SELECT avg(r1.c1), sum(r2.c1), r2.c1 FROM ("S 1"."T 3" r1 FULL JOIN "S 1"."T 4" r2 ON (((r1.c1 = r2.c1)))) GROUP BY 3 HAVING ((((avg(r1.c1) IS NULL) AND (sum(r2.c1) < 10)) OR (sum(r2.c1) IS NULL))) ORDER BY avg(r1.c1) ASC NULLS LAST, sum(r2.c1) ASC NULLS LAST FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT avg(r1.c1), sum(r2.c1), r2.c1 FROM ("S 1"."T 3" r1 FULL JOIN "S 1"."T 4" r2 ON (((r1.c1 = r2.c1)))) GROUP BY 3 HAVING ((((avg(r1.c1) IS NULL) AND (sum(r2.c1) < 10)) OR (sum(r2.c1) IS NULL))) ORDER BY avg(r1.c1) ASC NULLS LAST, sum(r2.c1) ASC NULLS LAST Sort Output: (avg(r1.c1)), (sum(r2.c1)), r2.c1 Sort Key: (avg(r1.c1)), (sum(r2.c1)) -> HashAggregate Output: avg(r1.c1), sum(r2.c1), r2.c1 Group By Key: r2.c1 Filter: (((avg(r1.c1) IS NULL) AND (sum(r2.c1) < 10)) OR (sum(r2.c1) IS NULL)) -> Hash Full Join Output: r1.c1, r2.c1 Hash Cond: (r1.c1 = r2.c1) -> Partition Iterator Output: r1.c1, r1.c2, r1.c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" r1 Output: r1.c1, r1.c2, r1.c3 Selected Partitions: 1..2 -> Hash Output: r2.c1 -> Partition Iterator Output: r2.c1 Iterations: 2, Sub Iterations: 4 -> Partitioned Seq Scan on "S 1"."T 4" r2 Output: r2.c1 Selected Partitions: 1..2 Selected Subpartitions: ALL (34 rows) select avg(t1.c1), sum(t2.c1) from ft4 t1 full join ft5 t2 on (t1.c1 = t2.c1) group by t2.c1 having (avg(t1.c1) is null and sum(t2.c1) < 10) or sum(t2.c1) is null order by 1 nulls last, 2; avg | sum ---------------------+----- 51.0000000000000000 | | 3 | 9 (3 rows) -- Aggregate over FULL join needing to deparse the joining relations as -- subqueries. explain (verbose, costs off) select count(*), sum(t1.c1), avg(t2.c1) from (select c1 from ft4 where c1 between 50 and 60) t1 full join (select c1 from ft5 where c1 between 50 and 60) t2 on (t1.c1 = t2.c1); QUERY PLAN -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: (count(*)), (sum(ft4.c1)), (avg(ft5.c1)) Node ID: 1 Relations: Aggregate on ((public.ft4) FULL JOIN (public.ft5)) Remote SQL: SELECT count(*), sum(s4.c1), avg(s5.c1) FROM ((SELECT c1 FROM "S 1"."T 3" WHERE ((c1 >= 50)) AND ((c1 <= 60))) s4(c1) FULL JOIN (SELECT c1 FROM "S 1"."T 4" WHERE ((c1 >= 50)) AND ((c1 <= 60))) s5(c1) ON (((s4.c1 = s5.c1)))) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT count(*), sum(s4.c1), avg(s5.c1) FROM ((SELECT c1 FROM "S 1"."T 3" WHERE ((c1 >= 50)) AND ((c1 <= 60))) s4(c1) FULL JOIN (SELECT c1 FROM "S 1"."T 4" WHERE ((c1 >= 50)) AND ((c1 <= 60))) s5(c1) ON (((s4.c1 = s5.c1)))) Aggregate Output: count(*), sum("T 3".c1), avg("T 4".c1) -> Hash Full Join Output: "T 3".c1, "T 4".c1 Hash Cond: ("T 3".c1 = "T 4".c1) -> Partition Iterator Output: "T 3".c1, "T 3".c2, "T 3".c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" Output: "T 3".c1, "T 3".c2, "T 3".c3 Filter: (("T 3".c1 >= 50) AND ("T 3".c1 <= 60)) Selected Partitions: 1..2 -> Hash Output: "T 4".c1 -> Partition Iterator Output: "T 4".c1 Iterations: 1, Sub Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 4" Output: "T 4".c1 Filter: (("T 4".c1 >= 50) AND ("T 4".c1 <= 60)) Selected Partitions: 2 Selected Subpartitions: ALL (31 rows) select count(*), sum(t1.c1), avg(t2.c1) from (select c1 from ft4 where c1 between 50 and 60) t1 full join (select c1 from ft5 where c1 between 50 and 60) t2 on (t1.c1 = t2.c1); count | sum | avg -------+-----+--------------------- 8 | 330 | 55.5000000000000000 (1 row) -- ORDER BY expression is part of the target list but not pushed down to -- foreign server. explain (verbose, costs off) select sum(c2) * (random() <= 1)::int as sum from ft1 order by 1; QUERY PLAN ---------------------------------------------------------------------------- Sort Output: ((sum(c2) * ((random() <= 1::double precision))::integer)) Sort Key: ((sum(ft1.c2) * ((random() <= 1::double precision))::integer)) -> Aggregate Output: (sum(c2) * ((random() <= 1::double precision))::integer) -> Foreign Scan on public.ft1 Output: c2 Node ID: 1 Remote SQL: SELECT c2 FROM "S 1"."T 1" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c2 FROM "S 1"."T 1" Partition Iterator Output: c2 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: c2 Selected Partitions: 1..2 (19 rows) select sum(c2) * (random() <= 1)::int as sum from ft1 order by 1; sum ------ 4500 (1 row) --nspt LATERAL join, with parameterization -- NOTICES: -- openGauss not support create operator class. remove the case. If you want to restore the test case later, refer to README in the file header. -- Check with placeHolderVars explain (verbose, costs off) select sum(q.a), count(q.b) from ft4 left join (select 13, avg(ft1.c1), sum(ft2.c1) from ft1 right join ft2 on (ft1.c1 = ft2.c1)) q(a, b, c) on (ft4.c1 <= q.b); QUERY PLAN -------------------------------------------------------------------------------------------------------------------------------------------------------------- Aggregate Output: sum(q.a), count(q.b) -> Nested Loop Left Join Output: q.a, q.b Join Filter: ((ft4.c1)::numeric <= q.b) -> Foreign Scan on public.ft4 Output: ft4.c1 Node ID: 1 Remote SQL: SELECT c1 FROM "S 1"."T 3" -> Materialize Output: q.a, q.b -> Subquery Scan on q Output: q.a, q.b -> Foreign Scan Output: (13), (avg(ft1.c1)), (sum(ft2.c1)) Node ID: 2 Relations: Aggregate on ((public.ft2) LEFT JOIN (public.ft1)) Remote SQL: SELECT 13, avg(r1."C 1"), sum(r2."C 1") FROM ("S 1"."T 1" r2 LEFT JOIN "S 1"."T 1" r1 ON (((r1."C 1" = r2."C 1")))) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c1 FROM "S 1"."T 3" Partition Iterator Output: c1 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" Output: c1 Selected Partitions: 1..2 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT 13, avg(r1."C 1"), sum(r2."C 1") FROM ("S 1"."T 1" r2 LEFT JOIN "S 1"."T 1" r1 ON (((r1."C 1" = r2."C 1")))) Aggregate Output: 13, avg(r1."C 1"), sum(r2."C 1") -> Hash Left Join Output: r2."C 1", r1."C 1" Hash Cond: (r2."C 1" = r1."C 1") -> Partition Iterator Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" r2 Output: r2."C 1", r2.c2, r2.c3, r2.c4, r2.c5, r2.c6, r2.c7, r2.c8 Selected Partitions: 1..2 -> Hash Output: r1."C 1" -> Partition Iterator Output: r1."C 1" Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" r1 Output: r1."C 1" Selected Partitions: 1..2 (48 rows) select sum(q.a), count(q.b) from ft4 left join (select 13, avg(ft1.c1), sum(ft2.c1) from ft1 right join ft2 on (ft1.c1 = ft2.c1)) q(a, b, c) on (ft4.c1 <= q.b); sum | count -----+------- 650 | 50 (1 row) -- Not supported cases -- Grouping sets explain (verbose, costs off) select c2, sum(c1) from ft1 where c2 < 3 group by rollup(c2) order by 1 nulls last; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------ Sort Output: c2, (sum(c1)) Sort Key: ft1.c2 -> GroupAggregate Output: c2, sum(c1) Group By Key: ft1.c2 Group By Key: () -> Foreign Scan on public.ft1 Output: c2, c1 Node ID: 1 Remote SQL: SELECT "C 1", c2 FROM "S 1"."T 1" WHERE ((c2 < 3)) ORDER BY c2 ASC NULLS LAST FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2 FROM "S 1"."T 1" WHERE ((c2 < 3)) ORDER BY c2 ASC NULLS LAST Sort Output: "C 1", c2 Sort Key: "T 1".c2 -> Partition Iterator Output: "C 1", c2 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2 Filter: ("T 1".c2 < 3) Selected Partitions: 1..2 (25 rows) select c2, sum(c1) from ft1 where c2 < 3 group by rollup(c2) order by 1 nulls last; c2 | sum ----+-------- 0 | 50500 1 | 49600 2 | 49700 | 149800 (4 rows) explain (verbose, costs off) select c2, sum(c1) from ft1 where c2 < 3 group by cube(c2) order by 1 nulls last; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------ Sort Output: c2, (sum(c1)) Sort Key: ft1.c2 -> GroupAggregate Output: c2, sum(c1) Group By Key: ft1.c2 Group By Key: () -> Foreign Scan on public.ft1 Output: c2, c1 Node ID: 1 Remote SQL: SELECT "C 1", c2 FROM "S 1"."T 1" WHERE ((c2 < 3)) ORDER BY c2 ASC NULLS LAST FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2 FROM "S 1"."T 1" WHERE ((c2 < 3)) ORDER BY c2 ASC NULLS LAST Sort Output: "C 1", c2 Sort Key: "T 1".c2 -> Partition Iterator Output: "C 1", c2 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2 Filter: ("T 1".c2 < 3) Selected Partitions: 1..2 (25 rows) select c2, sum(c1) from ft1 where c2 < 3 group by cube(c2) order by 1 nulls last; c2 | sum ----+-------- 0 | 50500 1 | 49600 2 | 49700 | 149800 (4 rows) explain (verbose, costs off) select c2, c6, sum(c1) from ft1 where c2 < 3 group by grouping sets(c2, c6) order by 1 nulls last, 2 nulls last; QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------- Sort Output: c2, c6, (sum(c1)) Sort Key: ft1.c2, ft1.c6 -> GroupAggregate Output: c2, c6, sum(c1) Group By Key: ft1.c2 Sort Key: ft1.c6 Group By Key: ft1.c6 -> Foreign Scan on public.ft1 Output: c2, c6, c1 Node ID: 1 Remote SQL: SELECT "C 1", c2, c6 FROM "S 1"."T 1" WHERE ((c2 < 3)) ORDER BY c2 ASC NULLS LAST FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c6 FROM "S 1"."T 1" WHERE ((c2 < 3)) ORDER BY c2 ASC NULLS LAST Sort Output: "C 1", c2, c6 Sort Key: "T 1".c2 -> Partition Iterator Output: "C 1", c2, c6 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c6 Filter: ("T 1".c2 < 3) Selected Partitions: 1..2 (26 rows) select c2, c6, sum(c1) from ft1 where c2 < 3 group by grouping sets(c2, c6) order by 1 nulls last, 2 nulls last; c2 | c6 | sum ----+----+------- 0 | | 50500 1 | | 49600 2 | | 49700 | 0 | 50500 | 1 | 49600 | 2 | 49700 (6 rows) explain (verbose, costs off) select c2, sum(c1), grouping(c2) from ft1 where c2 < 3 group by c2 order by 1 nulls last; QUERY PLAN --------------------------------------------------------------------------------------------- Sort Output: c2, (sum(c1)), (GROUPING(c2)) Sort Key: ft1.c2 -> HashAggregate Output: c2, sum(c1), GROUPING(c2) Group By Key: ft1.c2 -> Foreign Scan on public.ft1 Output: c2, c1 Node ID: 1 Remote SQL: SELECT "C 1", c2 FROM "S 1"."T 1" WHERE ((c2 < 3)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2 FROM "S 1"."T 1" WHERE ((c2 < 3)) Partition Iterator Output: "C 1", c2 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2 Filter: ("T 1".c2 < 3) Selected Partitions: 1..2 (21 rows) select c2, sum(c1), grouping(c2) from ft1 where c2 < 3 group by c2 order by 1 nulls last; c2 | sum | grouping ----+-------+---------- 0 | 50500 | 0 1 | 49600 | 0 2 | 49700 | 0 (3 rows) -- DISTINCT itself is not pushed down, whereas underneath aggregate is pushed explain (verbose, costs off) select distinct sum(c1)/1000 s from ft2 where c2 < 6 group by c2 order by 1; QUERY PLAN --------------------------------------------------------------------------------------------- Unique Output: ((sum(c1) / 1000)), c2 -> Sort Output: ((sum(c1) / 1000)), c2 Sort Key: ((sum(ft2.c1) / 1000)) -> HashAggregate Output: (sum(c1) / 1000), c2 Group By Key: ft2.c2 -> Foreign Scan on public.ft2 Output: c2, c1 Node ID: 1 Remote SQL: SELECT "C 1", c2 FROM "S 1"."T 1" WHERE ((c2 < 6)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2 FROM "S 1"."T 1" WHERE ((c2 < 6)) Partition Iterator Output: "C 1", c2 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2 Filter: ("T 1".c2 < 6) Selected Partitions: 1..2 (23 rows) select distinct sum(c1)/1000 s from ft2 where c2 < 6 group by c2 order by 1; s ------ 49.6 49.7 49.8 49.9 50 50.5 (6 rows) -- WindowAgg explain (verbose, costs off) select c2, sum(c2), count(c2) over (partition by c2%2) from ft2 where c2 < 10 group by c2 order by 1; QUERY PLAN ------------------------------------------------------------------------------------------ Sort Output: c2, (sum(c2)), (count(c2) OVER (PARTITION BY ((c2 % 2)))), ((c2 % 2)) Sort Key: ft2.c2 -> WindowAgg Output: c2, (sum(c2)), count(c2) OVER (PARTITION BY ((c2 % 2))), ((c2 % 2)) -> Sort Output: c2, ((c2 % 2)), (sum(c2)) Sort Key: ((ft2.c2 % 2)) -> GroupAggregate Output: c2, (c2 % 2), sum(c2) Group By Key: ft2.c2 -> Sort Output: c2 Sort Key: ft2.c2 -> Foreign Scan on public.ft2 Output: c2 Node ID: 1 Remote SQL: SELECT c2 FROM "S 1"."T 1" WHERE ((c2 < 10)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c2 FROM "S 1"."T 1" WHERE ((c2 < 10)) Partition Iterator Output: c2 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: c2 Filter: ("T 1".c2 < 10) Selected Partitions: 1..2 (29 rows) select c2, sum(c2), count(c2) over (partition by c2%2) from ft2 where c2 < 10 group by c2 order by 1; c2 | sum | count ----+-----+------- 0 | 0 | 5 1 | 100 | 5 2 | 200 | 5 3 | 300 | 5 4 | 400 | 5 5 | 500 | 5 6 | 600 | 5 7 | 700 | 5 8 | 800 | 5 9 | 900 | 5 (10 rows) explain (verbose, costs off) select c2, array_agg(c2) over (partition by c2%2 order by c2 desc) from ft1 where c2 < 10 group by c2 order by 1; QUERY PLAN ------------------------------------------------------------------------------------------------------------- Sort Output: c2, (array_agg(c2) OVER (PARTITION BY ((c2 % 2)) ORDER BY c2 USING = NULLS LAST)), ((c2 % 2)) Sort Key: ft1.c2 -> WindowAgg Output: c2, array_agg(c2) OVER (PARTITION BY ((c2 % 2)) ORDER BY c2 USING = NULLS LAST), ((c2 % 2)) -> Sort Output: c2, ((c2 % 2)) Sort Key: ((ft1.c2 % 2)), ft1.c2 DESC -> HashAggregate Output: c2, (c2 % 2) Group By Key: ft1.c2 -> Foreign Scan on public.ft1 Output: c2 Node ID: 1 Remote SQL: SELECT c2 FROM "S 1"."T 1" WHERE ((c2 < 10)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c2 FROM "S 1"."T 1" WHERE ((c2 < 10)) Partition Iterator Output: c2 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: c2 Filter: ("T 1".c2 < 10) Selected Partitions: 1..2 (26 rows) select c2, array_agg(c2) over (partition by c2%2 order by c2 desc) from ft1 where c2 < 10 group by c2 order by 1; c2 | array_agg ----+------------- 0 | {8,6,4,2,0} 1 | {9,7,5,3,1} 2 | {8,6,4,2} 3 | {9,7,5,3} 4 | {8,6,4} 5 | {9,7,5} 6 | {8,6} 7 | {9,7} 8 | {8} 9 | {9} (10 rows) explain (verbose, costs off) select c2, array_agg(c2) over (partition by c2%2 order by c2 range between current row and unbounded following) from ft1 where c2 < 10 group by c2 order by 1; QUERY PLAN --------------------------------------------------------------------------------------------------------------------------------------------------------------- Sort Output: c2, (array_agg(c2) OVER (PARTITION BY ((c2 % 2)) ORDER BY c2 USING = NULLS LAST RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING)), ((c2 % 2)) Sort Key: ft1.c2 -> WindowAgg Output: c2, array_agg(c2) OVER (PARTITION BY ((c2 % 2)) ORDER BY c2 USING = NULLS LAST RANGE BETWEEN CURRENT ROW AND UNBOUNDED FOLLOWING), ((c2 % 2)) -> Sort Output: c2, ((c2 % 2)) Sort Key: ((ft1.c2 % 2)), ft1.c2 -> HashAggregate Output: c2, (c2 % 2) Group By Key: ft1.c2 -> Foreign Scan on public.ft1 Output: c2 Node ID: 1 Remote SQL: SELECT c2 FROM "S 1"."T 1" WHERE ((c2 < 10)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c2 FROM "S 1"."T 1" WHERE ((c2 < 10)) Partition Iterator Output: c2 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: c2 Filter: ("T 1".c2 < 10) Selected Partitions: 1..2 (26 rows) select c2, array_agg(c2) over (partition by c2%2 order by c2 range between current row and unbounded following) from ft1 where c2 < 10 group by c2 order by 1; c2 | array_agg ----+------------- 0 | {0,2,4,6,8} 1 | {1,3,5,7,9} 2 | {2,4,6,8} 3 | {3,5,7,9} 4 | {4,6,8} 5 | {5,7,9} 6 | {6,8} 7 | {7,9} 8 | {8} 9 | {9} (10 rows) -- Same group by explain verbose select c1,c1,c1,count(*) from ft1 group by 1,1,1; QUERY PLAN ----------------------------------------------------------------------------------- HashAggregate (cost=147.00..157.00 rows=1000 width=12) Output: c1, c1, c1, count(*) Group By Key: ft1.c1 -> Foreign Scan on public.ft1 (cost=100.00..142.00 rows=1000 width=4) Output: c1 Node ID: 1 Remote SQL: SELECT "C 1" FROM "S 1"."T 1" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS ON) SELECT "C 1" FROM "S 1"."T 1" Partition Iterator (cost=0.00..22.00 rows=1000 width=4) Output: "C 1" Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" (cost=0.00..22.00 rows=1000 width=4) Output: "C 1" Selected Partitions: 1..2 (17 rows) set enable_hashagg = off; explain verbose select c1,c1,c1,count(*) from ft1 group by 1,1,1; QUERY PLAN -------------------------------------------------------------------------------------------- Foreign Scan (cost=105.00..157.00 rows=1000 width=0) Output: c1, c1, c1, (count(*)) Node ID: 1 Relations: Aggregate on (public.ft1) Remote SQL: SELECT "C 1", count(*) FROM "S 1"."T 1" GROUP BY 1 FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS ON) SELECT "C 1", count(*) FROM "S 1"."T 1" GROUP BY 1 HashAggregate (cost=27.00..37.00 rows=1000 width=12) Output: "C 1", count(*) Group By Key: "T 1"."C 1" -> Partition Iterator (cost=0.00..22.00 rows=1000 width=4) Output: "C 1" Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" (cost=0.00..22.00 rows=1000 width=4) Output: "C 1" Selected Partitions: 1..2 (18 rows) set enable_hashagg = on; -- ====================================================================================================================================== -- TEST-MODULE: parameterized queries -- -------------------------------------- -- ====================================================================================================================================== -- simple join PREPARE st1(int, int) AS SELECT t1.c3, t2.c3 FROM ft1 t1, ft2 t2 WHERE t1.c1 = $1 AND t2.c1 = $2; EXPLAIN (VERBOSE, COSTS OFF) EXECUTE st1(1, 2); QUERY PLAN ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan Output: t1.c3, t2.c3 Node ID: 1 Relations: (public.ft1 t1) INNER JOIN (public.ft2 t2) Remote SQL: SELECT r1.c3, r2.c3 FROM ("S 1"."T 1" r1 INNER JOIN "S 1"."T 1" r2 ON (((r2."C 1" = $1::integer)) AND ((r1."C 1" = $2::integer)))) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT r1.c3, r2.c3 FROM ("S 1"."T 1" r1 INNER JOIN "S 1"."T 1" r2 ON (((r2."C 1" = $1::integer)) AND ((r1."C 1" = $2::integer)))) failed to get remote plan, error massage is: there is no parameter $1 (11 rows) EXECUTE st1(1, 1); c3 | c3 -------+------- 00001 | 00001 (1 row) EXECUTE st1(101, 101); c3 | c3 -------+------- 00101 | 00101 (1 row) -- subquery using stable function (can't be sent to remote) PREPARE st2(int) AS SELECT * FROM ft1 t1 WHERE t1.c1 < $2 AND t1.c3 IN (SELECT c3 FROM ft2 t2 WHERE c1 > $1 AND "date"(c4) = '1970-01-17'::date) ORDER BY c1; EXPLAIN (VERBOSE, COSTS OFF) EXECUTE st2(10, 20); QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------- Sort Output: t1.c1, t1.c2, t1.c3, t1.c4, t1.c5, t1.c6, t1.c7, t1.c8 Sort Key: t1.c1 -> Hash Semi Join Output: t1.c1, t1.c2, t1.c3, t1.c4, t1.c5, t1.c6, t1.c7, t1.c8 Hash Cond: (t1.c3 = t2.c3) -> Foreign Scan on public.ft1 t1 Output: t1.c1, t1.c2, t1.c3, t1.c4, t1.c5, t1.c6, t1.c7, t1.c8 Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" < $1::integer)) -> Hash Output: t2.c3 -> Foreign Scan on public.ft2 t2 Output: t2.c3 Filter: ("date"(t2.c4) = 'Sat Jan 17 00:00:00 1970'::timestamp(0) without time zone) Node ID: 2 Remote SQL: SELECT c3, c4 FROM "S 1"."T 1" WHERE (("C 1" > $1::integer)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" < $1::integer)) failed to get remote plan, error massage is: there is no parameter $1 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c3, c4 FROM "S 1"."T 1" WHERE (("C 1" > $1::integer)) failed to get remote plan, error massage is: current transaction is aborted, commands ignored until end of transaction block, firstChar[Q] (26 rows) EXECUTE st2(10, 20); c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 ----+----+-------+------------------------------+--------------------------+----+------------+----- 16 | 6 | 00016 | Sat Jan 17 00:00:00 1970 PST | Sat Jan 17 00:00:00 1970 | 6 | 6 | foo (1 row) EXECUTE st2(101, 121); c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 -----+----+-------+------------------------------+--------------------------+----+------------+----- 116 | 6 | 00116 | Sat Jan 17 00:00:00 1970 PST | Sat Jan 17 00:00:00 1970 | 6 | 6 | foo (1 row) -- subquery using immutable function (can be sent to remote) PREPARE st3(int) AS SELECT * FROM ft1 t1 WHERE t1.c1 < $2 AND t1.c3 IN (SELECT c3 FROM ft2 t2 WHERE c1 > $1 AND "date"(c5) = '1970-01-17'::date) ORDER BY c1; EXPLAIN (VERBOSE, COSTS OFF) EXECUTE st3(10, 20); QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Sort Output: t1.c1, t1.c2, t1.c3, t1.c4, t1.c5, t1.c6, t1.c7, t1.c8 Sort Key: t1.c1 -> Hash Semi Join Output: t1.c1, t1.c2, t1.c3, t1.c4, t1.c5, t1.c6, t1.c7, t1.c8 Hash Cond: (t1.c3 = t2.c3) -> Foreign Scan on public.ft1 t1 Output: t1.c1, t1.c2, t1.c3, t1.c4, t1.c5, t1.c6, t1.c7, t1.c8 Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" < $1::integer)) -> Hash Output: t2.c3 -> Foreign Scan on public.ft2 t2 Output: t2.c3 Node ID: 2 Remote SQL: SELECT c3 FROM "S 1"."T 1" WHERE (("C 1" > $1::integer)) AND (("date"(c5) = '1970-01-17 00:00:00'::timestamp(0) without time zone)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" < $1::integer)) failed to get remote plan, error massage is: there is no parameter $1 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c3 FROM "S 1"."T 1" WHERE (("C 1" > $1::integer)) AND (("date"(c5) = '1970-01-17 00:00:00'::timestamp(0) without time zone)) failed to get remote plan, error massage is: current transaction is aborted, commands ignored until end of transaction block, firstChar[Q] (25 rows) EXECUTE st3(10, 20); c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 ----+----+-------+------------------------------+--------------------------+----+------------+----- 16 | 6 | 00016 | Sat Jan 17 00:00:00 1970 PST | Sat Jan 17 00:00:00 1970 | 6 | 6 | foo (1 row) EXECUTE st3(20, 30); c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 ----+----+----+----+----+----+----+---- (0 rows) -- custom plan should be chosen initially PREPARE st4(int) AS SELECT * FROM ft1 t1 WHERE t1.c1 = $1; EXPLAIN (VERBOSE, COSTS OFF) EXECUTE st4(1); QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------- Foreign Scan on public.ft1 t1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = $1::integer)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = $1::integer)) failed to get remote plan, error massage is: there is no parameter $1 (10 rows) EXPLAIN (VERBOSE, COSTS OFF) EXECUTE st4(1); QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------- Foreign Scan on public.ft1 t1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = $1::integer)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = $1::integer)) failed to get remote plan, error massage is: there is no parameter $1 (10 rows) EXPLAIN (VERBOSE, COSTS OFF) EXECUTE st4(1); QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------- Foreign Scan on public.ft1 t1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = $1::integer)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = $1::integer)) failed to get remote plan, error massage is: there is no parameter $1 (10 rows) EXPLAIN (VERBOSE, COSTS OFF) EXECUTE st4(1); QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------- Foreign Scan on public.ft1 t1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = $1::integer)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = $1::integer)) failed to get remote plan, error massage is: there is no parameter $1 (10 rows) EXPLAIN (VERBOSE, COSTS OFF) EXECUTE st4(1); QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------- Foreign Scan on public.ft1 t1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = $1::integer)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = $1::integer)) failed to get remote plan, error massage is: there is no parameter $1 (10 rows) -- once we try it enough times, should switch to generic plan EXPLAIN (VERBOSE, COSTS OFF) EXECUTE st4(1); QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------- Foreign Scan on public.ft1 t1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = $1::integer)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = $1::integer)) failed to get remote plan, error massage is: there is no parameter $1 (10 rows) -- value of $1 should not be sent to remote PREPARE st5(user_enum,int) AS SELECT * FROM ft1 t1 WHERE c8 = $1 and c1 = $2; EXPLAIN (VERBOSE, COSTS OFF) EXECUTE st5('foo', 1); QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------- Foreign Scan on public.ft1 t1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Filter: (t1.c8 = $1) Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = $1::integer)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = $1::integer)) failed to get remote plan, error massage is: there is no parameter $1 (11 rows) EXPLAIN (VERBOSE, COSTS OFF) EXECUTE st5('foo', 1); QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------- Foreign Scan on public.ft1 t1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Filter: (t1.c8 = $1) Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = $1::integer)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = $1::integer)) failed to get remote plan, error massage is: there is no parameter $1 (11 rows) EXPLAIN (VERBOSE, COSTS OFF) EXECUTE st5('foo', 1); QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------- Foreign Scan on public.ft1 t1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Filter: (t1.c8 = $1) Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = $1::integer)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = $1::integer)) failed to get remote plan, error massage is: there is no parameter $1 (11 rows) EXPLAIN (VERBOSE, COSTS OFF) EXECUTE st5('foo', 1); QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------- Foreign Scan on public.ft1 t1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Filter: (t1.c8 = $1) Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = $1::integer)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = $1::integer)) failed to get remote plan, error massage is: there is no parameter $1 (11 rows) EXPLAIN (VERBOSE, COSTS OFF) EXECUTE st5('foo', 1); QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------- Foreign Scan on public.ft1 t1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Filter: (t1.c8 = $1) Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = $1::integer)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = $1::integer)) failed to get remote plan, error massage is: there is no parameter $1 (11 rows) EXPLAIN (VERBOSE, COSTS OFF) EXECUTE st5('foo', 1); QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------- Foreign Scan on public.ft1 t1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Filter: (t1.c8 = $1) Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = $1::integer)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = $1::integer)) failed to get remote plan, error massage is: there is no parameter $1 (11 rows) EXECUTE st5('foo', 1); c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 ----+----+-------+------------------------------+--------------------------+----+------------+----- 1 | 1 | 00001 | Fri Jan 02 00:00:00 1970 PST | Fri Jan 02 00:00:00 1970 | 1 | 1 | foo (1 row) -- altering FDW options requires replanning PREPARE st6 AS SELECT * FROM ft1 t1 WHERE t1.c1 = t1.c2; EXPLAIN (VERBOSE, COSTS OFF) EXECUTE st6; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------- Foreign Scan on public.ft1 t1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = c2)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" = c2)) Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Filter: ("T 1"."C 1" = "T 1".c2) Selected Partitions: 1..2 (15 rows) PREPARE st7 AS INSERT INTO ft1 (c1,c2,c3) VALUES (1001,101,'foo'); EXPLAIN (VERBOSE, COSTS OFF) EXECUTE st7; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Insert on public.ft1 -> Result Output: NULL::integer, 1001, 101, 'foo'::text, NULL::timestamp with time zone, NULL::timestamp without time zone, NULL::character varying, 'ft1 '::character(10), NULL::user_enum (3 rows) ALTER TABLE "S 1"."T 1" RENAME TO "T 0"; ALTER FOREIGN TABLE ft1 OPTIONS (SET table_name 'T 0'); EXPLAIN (VERBOSE, COSTS OFF) EXECUTE st6; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------- Foreign Scan on public.ft1 t1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 0" WHERE (("C 1" = c2)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 0" WHERE (("C 1" = c2)) Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 0" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Filter: ("T 0"."C 1" = "T 0".c2) Selected Partitions: 1..2 (15 rows) EXECUTE st6; --nspt c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 ----+----+-------+------------------------------+--------------------------+----+------------+----- 1 | 1 | 00001 | Fri Jan 02 00:00:00 1970 PST | Fri Jan 02 00:00:00 1970 | 1 | 1 | foo 2 | 2 | 00002 | Sat Jan 03 00:00:00 1970 PST | Sat Jan 03 00:00:00 1970 | 2 | 2 | foo 3 | 3 | 00003 | Sun Jan 04 00:00:00 1970 PST | Sun Jan 04 00:00:00 1970 | 3 | 3 | foo 4 | 4 | 00004 | Mon Jan 05 00:00:00 1970 PST | Mon Jan 05 00:00:00 1970 | 4 | 4 | foo 5 | 5 | 00005 | Tue Jan 06 00:00:00 1970 PST | Tue Jan 06 00:00:00 1970 | 5 | 5 | foo 6 | 6 | 00006 | Wed Jan 07 00:00:00 1970 PST | Wed Jan 07 00:00:00 1970 | 6 | 6 | foo 7 | 7 | 00007 | Thu Jan 08 00:00:00 1970 PST | Thu Jan 08 00:00:00 1970 | 7 | 7 | foo 8 | 8 | 00008 | Fri Jan 09 00:00:00 1970 PST | Fri Jan 09 00:00:00 1970 | 8 | 8 | foo 9 | 9 | 00009 | Sat Jan 10 00:00:00 1970 PST | Sat Jan 10 00:00:00 1970 | 9 | 9 | foo (9 rows) EXPLAIN (VERBOSE, COSTS OFF) EXECUTE st7; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Insert on public.ft1 -> Result Output: NULL::integer, 1001, 101, 'foo'::text, NULL::timestamp with time zone, NULL::timestamp without time zone, NULL::character varying, 'ft1 '::character(10), NULL::user_enum (3 rows) ALTER TABLE "S 1"."T 0" RENAME TO "T 1"; ALTER FOREIGN TABLE ft1 OPTIONS (SET table_name 'T 1'); PREPARE st8 AS SELECT count(c3) FROM ft1 t1 WHERE t1.c1 === t1.c2; EXPLAIN (VERBOSE, COSTS OFF) EXECUTE st8; QUERY PLAN -------------------------------------------------------------------------------- Aggregate Output: count(c3) -> Foreign Scan on public.ft1 t1 Output: c3 Filter: (t1.c1 === t1.c2) Node ID: 1 Remote SQL: SELECT "C 1", c2, c3 FROM "S 1"."T 1" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3 FROM "S 1"."T 1" Partition Iterator Output: "C 1", c2, c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3 Selected Partitions: 1..2 (17 rows) ALTER SERVER loopback OPTIONS (DROP extensions); ERROR: option "extensions" not found EXPLAIN (VERBOSE, COSTS OFF) EXECUTE st8; QUERY PLAN -------------------------------------------------------------------------------- Aggregate Output: count(c3) -> Foreign Scan on public.ft1 t1 Output: c3 Filter: (t1.c1 === t1.c2) Node ID: 1 Remote SQL: SELECT "C 1", c2, c3 FROM "S 1"."T 1" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3 FROM "S 1"."T 1" Partition Iterator Output: "C 1", c2, c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3 Selected Partitions: 1..2 (17 rows) EXECUTE st8; count ------- 9 (1 row) ALTER SERVER loopback OPTIONS (ADD extensions 'postgres_fdw'); ERROR: invalid option "extensions" HINT: Valid options in this context are: service, connect_timeout, dbname, host, remote_nodename, hostaddr, port, localhost, localport, application_name, fencedUdfRPCMode, keepalives, keepalives_idle, keepalives_interval, keepalives_count, tcp_user_timeout, rw_timeout, sslmode, sslcompression, sslcert, sslkey, sslrootcert, sslcrl, requirepeer, krbsrvname, prototype, connection_info, connectionExtraInfo, target_session_attrs, use_remote_estimate, fdw_startup_cost, fdw_tuple_cost, updatable -- cleanup DEALLOCATE st1; DEALLOCATE st2; DEALLOCATE st3; DEALLOCATE st4; DEALLOCATE st5; DEALLOCATE st6; DEALLOCATE st7; DEALLOCATE st8; -- System columns, except ctid and oid, should not be sent to remote -- openGauss NOT SUPPROT select system columns in ftable. EXPLAIN (VERBOSE, COSTS OFF) SELECT * FROM ft1 t1 WHERE t1.tableoid = 'pg_class'::regclass LIMIT 1; ERROR: column t1.tableoid does not exist LINE 2: SELECT * FROM ft1 t1 WHERE t1.tableoid = 'pg_class'::regclas... ^ SELECT * FROM ft1 t1 WHERE t1.tableoid = 'ft1'::regclass LIMIT 1; ERROR: column t1.tableoid does not exist LINE 1: SELECT * FROM ft1 t1 WHERE t1.tableoid = 'ft1'::regclass LIM... ^ EXPLAIN (VERBOSE, COSTS OFF) SELECT tableoid::regclass, * FROM ft1 t1 LIMIT 1; ERROR: column "tableoid" does not exist LINE 2: SELECT tableoid::regclass, * FROM ft1 t1 LIMIT 1; ^ CONTEXT: referenced column: tableoid SELECT tableoid::regclass, * FROM ft1 t1 LIMIT 1; ERROR: column "tableoid" does not exist LINE 1: SELECT tableoid::regclass, * FROM ft1 t1 LIMIT 1; ^ CONTEXT: referenced column: tableoid EXPLAIN (VERBOSE, COSTS OFF) SELECT * FROM ft1 t1 WHERE t1.ctid = '(0,2)'; ERROR: column t1.ctid does not exist LINE 2: SELECT * FROM ft1 t1 WHERE t1.ctid = '(0,2)'; ^ SELECT * FROM ft1 t1 WHERE t1.ctid = '(0,2)'; ERROR: column t1.ctid does not exist LINE 1: SELECT * FROM ft1 t1 WHERE t1.ctid = '(0,2)'; ^ EXPLAIN (VERBOSE, COSTS OFF) SELECT ctid, * FROM ft1 t1 LIMIT 1; ERROR: column "ctid" does not exist LINE 2: SELECT ctid, * FROM ft1 t1 LIMIT 1; ^ CONTEXT: referenced column: ctid SELECT ctid, * FROM ft1 t1 LIMIT 1; ERROR: column "ctid" does not exist LINE 1: SELECT ctid, * FROM ft1 t1 LIMIT 1; ^ CONTEXT: referenced column: ctid -- ====================================================================================================================================== -- TEST-MODULE: used in PL/pgSQL function -- -------------------------------------- -- ====================================================================================================================================== CREATE OR REPLACE FUNCTION f_test(p_c1 int) RETURNS int AS $$ DECLARE v_c1 int; BEGIN SELECT c1 INTO v_c1 FROM ft1 WHERE c1 = p_c1 LIMIT 1; PERFORM c1 FROM ft1 WHERE c1 = p_c1 AND p_c1 = v_c1 LIMIT 1; RETURN v_c1; END; $$ LANGUAGE plpgsql; SELECT f_test(100); f_test -------- 100 (1 row) DROP FUNCTION f_test(int); -- ====================================================================================================================================== -- TEST-MODULE: IUD VIEW and WITH CHECK OPTION constraints -- -------------------------------------- -- ====================================================================================================================================== CREATE TABLE base_tbl (id int, a int, b int) partition by range(a) (partition a1 values less than(100), partition a2 values less than(200)); ALTER TABLE base_tbl SET (autovacuum_enabled = 'false'); CREATE FOREIGN TABLE foreign_tbl (id int, a int, b int) SERVER loopback OPTIONS (table_name 'base_tbl'); CREATE VIEW rw_view1 AS SELECT * FROM foreign_tbl WHERE a < b and id = 1; CREATE VIEW rw_view2 AS SELECT * FROM foreign_tbl WHERE a < b and id = 2 WITH CHECK OPTION; \d+ rw_view1 View "public.rw_view1" Column | Type | Modifiers | Storage | Description --------+---------+-----------+---------+------------- id | integer | | plain | a | integer | | plain | b | integer | | plain | View definition: SELECT * FROM foreign_tbl WHERE foreign_tbl.a < foreign_tbl.b AND foreign_tbl.id = 1; \d+ rw_view2 View "public.rw_view2" Column | Type | Modifiers | Storage | Description --------+---------+-----------+---------+------------- id | integer | | plain | a | integer | | plain | b | integer | | plain | View definition: SELECT * FROM foreign_tbl WHERE foreign_tbl.a < foreign_tbl.b AND foreign_tbl.id = 2; Options: check_option=cascaded CREATE OR REPLACE FUNCTION checkdata(out tbname text, out id int, out a int, out b int) RETURNS SETOF record as $$ select * from ( (select 'rw_view1', * from rw_view1 where id = 1) union all (select 'rw_view2', * from rw_view2 where id = 2) union all (select 'base_tbl p1', * from base_tbl) union all (select 'base_tbl p2', * from base_tbl) union all (select 'foreign_tbl', * from foreign_tbl) ) data(tbname, id, a, b) order by 1,2,3,4; $$ language sql; -- simple case EXPLAIN (VERBOSE, COSTS OFF) INSERT INTO rw_view1 VALUES (1, 0, 5); -- should success QUERY PLAN ------------------------------ Insert on public.foreign_tbl -> Result Output: 1, 0, 5 (3 rows) INSERT INTO rw_view1 VALUES (1, 0, 5); EXPLAIN (VERBOSE, COSTS OFF) INSERT INTO rw_view1 VALUES (1, 100, 5); -- should success QUERY PLAN ------------------------------ Insert on public.foreign_tbl -> Result Output: 1, 100, 5 (3 rows) INSERT INTO rw_view1 VALUES (1, 100, 5); EXPLAIN (VERBOSE, COSTS OFF) INSERT INTO rw_view1 VALUES (1, 1000, 5000); -- should failed QUERY PLAN ------------------------------- Insert on public.foreign_tbl -> Result Output: 1, 1000, 5000 (3 rows) INSERT INTO rw_view1 VALUES (1, 1000, 5000); ERROR: inserted partition key does not map to any table partition CONTEXT: Remote SQL command: INSERT INTO public.base_tbl(id, a, b) VALUES ($1, $2, $3) EXPLAIN (VERBOSE, COSTS OFF) INSERT INTO rw_view2 VALUES (2, 0, 5); -- should success QUERY PLAN ------------------------------ Insert on public.foreign_tbl -> Result Output: 2, 0, 5 (3 rows) INSERT INTO rw_view2 VALUES (2, 0, 5); EXPLAIN (VERBOSE, COSTS OFF) INSERT INTO rw_view2 VALUES (2, 100, 5); -- should failed QUERY PLAN ------------------------------ Insert on public.foreign_tbl -> Result Output: 2, 100, 5 (3 rows) INSERT INTO rw_view2 VALUES (2, 100, 5); ERROR: new row violates WITH CHECK OPTION for view "rw_view2" DETAIL: Failing row contains (2, 100, 5). EXPLAIN (VERBOSE, COSTS OFF) INSERT INTO rw_view2 VALUES (2, 1000, 5000); -- should failed QUERY PLAN ------------------------------- Insert on public.foreign_tbl -> Result Output: 2, 1000, 5000 (3 rows) INSERT INTO rw_view2 VALUES (2, 1000, 5000); ERROR: inserted partition key does not map to any table partition CONTEXT: Remote SQL command: INSERT INTO public.base_tbl(id, a, b) VALUES ($1, $2, $3) RETURNING id, a, b select * from checkdata(); tbname | id | a | b -------------+----+-----+--- base_tbl p1 | 1 | 0 | 5 base_tbl p1 | 1 | 100 | 5 base_tbl p1 | 2 | 0 | 5 base_tbl p2 | 1 | 0 | 5 base_tbl p2 | 1 | 100 | 5 base_tbl p2 | 2 | 0 | 5 foreign_tbl | 1 | 0 | 5 foreign_tbl | 1 | 100 | 5 foreign_tbl | 2 | 0 | 5 rw_view1 | 1 | 0 | 5 rw_view2 | 2 | 0 | 5 (11 rows) delete from base_tbl; insert into base_tbl values(1, 65, 100), (2, 85, 100); -- in and cross partition update EXPLAIN (VERBOSE, COSTS OFF) UPDATE rw_view1 SET a = a + 20 where id = 1; -- should success QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------ Update on public.foreign_tbl -> Foreign Scan on public.foreign_tbl Output: foreign_tbl.id, (foreign_tbl.a + 20), foreign_tbl.b, foreign_tbl.ctid, foreign_tbl.tableoid Node ID: 1 Remote SQL: SELECT id, a, b, ctid, tableoid FROM public.base_tbl WHERE ((a < b)) AND ((id = 1)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT id, a, b, ctid, tableoid FROM public.base_tbl WHERE ((a < b)) AND ((id = 1)) Partition Iterator Output: id, a, b, ctid, tableoid Iterations: 2 -> Partitioned Seq Scan on public.base_tbl Output: id, a, b, ctid, tableoid Filter: ((base_tbl.a < base_tbl.b) AND (base_tbl.id = 1)) Selected Partitions: 1..2 (16 rows) UPDATE rw_view1 SET a = a + 10 where id = 1; EXPLAIN (VERBOSE, COSTS OFF) UPDATE rw_view1 SET a = a + 20 where id = 1; -- should success QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------ Update on public.foreign_tbl -> Foreign Scan on public.foreign_tbl Output: foreign_tbl.id, (foreign_tbl.a + 20), foreign_tbl.b, foreign_tbl.ctid, foreign_tbl.tableoid Node ID: 1 Remote SQL: SELECT id, a, b, ctid, tableoid FROM public.base_tbl WHERE ((a < b)) AND ((id = 1)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT id, a, b, ctid, tableoid FROM public.base_tbl WHERE ((a < b)) AND ((id = 1)) Partition Iterator Output: id, a, b, ctid, tableoid Iterations: 2 -> Partitioned Seq Scan on public.base_tbl Output: id, a, b, ctid, tableoid Filter: ((base_tbl.a < base_tbl.b) AND (base_tbl.id = 1)) Selected Partitions: 1..2 (16 rows) UPDATE rw_view1 SET a = a + 10 where id = 1; EXPLAIN (VERBOSE, COSTS OFF) UPDATE rw_view2 SET a = a + 20 where id = 2; -- should failed QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------ Update on public.foreign_tbl -> Foreign Scan on public.foreign_tbl Output: foreign_tbl.id, (foreign_tbl.a + 20), foreign_tbl.b, foreign_tbl.ctid, foreign_tbl.tableoid Node ID: 1 Remote SQL: SELECT id, a, b, ctid, tableoid FROM public.base_tbl WHERE ((a < b)) AND ((id = 2)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT id, a, b, ctid, tableoid FROM public.base_tbl WHERE ((a < b)) AND ((id = 2)) Partition Iterator Output: id, a, b, ctid, tableoid Iterations: 2 -> Partitioned Seq Scan on public.base_tbl Output: id, a, b, ctid, tableoid Filter: ((base_tbl.a < base_tbl.b) AND (base_tbl.id = 2)) Selected Partitions: 1..2 (16 rows) UPDATE rw_view2 SET a = a + 20 where id = 2; ERROR: new row violates WITH CHECK OPTION for view "rw_view2" DETAIL: Failing row contains (2, 105, 100). EXPLAIN (VERBOSE, COSTS OFF) UPDATE rw_view2 SET a = a + 20, b = 200 where id = 2; -- should success QUERY PLAN --------------------------------------------------------------------------------------------------------------------------- Update on public.foreign_tbl -> Foreign Scan on public.foreign_tbl Output: foreign_tbl.id, (foreign_tbl.a + 20), 200, foreign_tbl.ctid, foreign_tbl.tableoid Node ID: 1 Remote SQL: SELECT id, a, ctid, tableoid FROM public.base_tbl WHERE ((a < b)) AND ((id = 2)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT id, a, ctid, tableoid FROM public.base_tbl WHERE ((a < b)) AND ((id = 2)) Partition Iterator Output: id, a, ctid, tableoid Iterations: 2 -> Partitioned Seq Scan on public.base_tbl Output: id, a, ctid, tableoid Filter: ((base_tbl.a < base_tbl.b) AND (base_tbl.id = 2)) Selected Partitions: 1..2 (16 rows) UPDATE rw_view2 SET a = a + 20, b = 200 where id = 2; select * from checkdata(); tbname | id | a | b -------------+----+-----+----- base_tbl p1 | 1 | 85 | 100 base_tbl p1 | 2 | 105 | 200 base_tbl p2 | 1 | 85 | 100 base_tbl p2 | 2 | 105 | 200 foreign_tbl | 1 | 85 | 100 foreign_tbl | 2 | 105 | 200 rw_view1 | 1 | 85 | 100 rw_view2 | 2 | 105 | 200 (8 rows) delete from base_tbl; insert into base_tbl values(1, 100, 99),(2, 100, 99); EXPLAIN (VERBOSE, COSTS OFF) delete from rw_view1 where id = 1; QUERY PLAN -------------------------------------------------------------------------------------------------------------------- Delete on public.foreign_tbl -> Foreign Scan on public.foreign_tbl Output: foreign_tbl.ctid, foreign_tbl.tableoid Node ID: 1 Remote SQL: SELECT ctid, tableoid FROM public.base_tbl WHERE ((a < b)) AND ((id = 1)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT ctid, tableoid FROM public.base_tbl WHERE ((a < b)) AND ((id = 1)) Partition Iterator Output: ctid, tableoid Iterations: 2 -> Partitioned Seq Scan on public.base_tbl Output: ctid, tableoid Filter: ((base_tbl.a < base_tbl.b) AND (base_tbl.id = 1)) Selected Partitions: 1..2 (16 rows) delete from rw_view1 where id = 1; EXPLAIN (VERBOSE, COSTS OFF) delete from rw_view2 where id = 2; QUERY PLAN -------------------------------------------------------------------------------------------------------------------- Delete on public.foreign_tbl -> Foreign Scan on public.foreign_tbl Output: foreign_tbl.ctid, foreign_tbl.tableoid Node ID: 1 Remote SQL: SELECT ctid, tableoid FROM public.base_tbl WHERE ((a < b)) AND ((id = 2)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT ctid, tableoid FROM public.base_tbl WHERE ((a < b)) AND ((id = 2)) Partition Iterator Output: ctid, tableoid Iterations: 2 -> Partitioned Seq Scan on public.base_tbl Output: ctid, tableoid Filter: ((base_tbl.a < base_tbl.b) AND (base_tbl.id = 2)) Selected Partitions: 1..2 (16 rows) delete from rw_view2 where id = 2; select * from checkdata(); tbname | id | a | b -------------+----+-----+---- base_tbl p1 | 1 | 100 | 99 base_tbl p1 | 2 | 100 | 99 base_tbl p2 | 1 | 100 | 99 base_tbl p2 | 2 | 100 | 99 foreign_tbl | 1 | 100 | 99 foreign_tbl | 2 | 100 | 99 (6 rows) delete from base_tbl; -- with trigger CREATE FUNCTION row_before_insupd_trigfunc() RETURNS trigger AS $$BEGIN NEW.a := NEW.a + 10; RETURN NEW; END$$ LANGUAGE plpgsql; CREATE TRIGGER row_before_insupd_trigger BEFORE INSERT OR UPDATE ON base_tbl FOR EACH ROW EXECUTE PROCEDURE row_before_insupd_trigfunc(); EXPLAIN (VERBOSE, COSTS OFF) INSERT INTO rw_view1 VALUES (1, 0, 5); -- should success QUERY PLAN ------------------------------ Insert on public.foreign_tbl -> Result Output: 1, 0, 5 (3 rows) INSERT INTO rw_view1 VALUES (1, 0, 5); EXPLAIN (VERBOSE, COSTS OFF) INSERT INTO rw_view1 VALUES (1, 80, 16); -- should success QUERY PLAN ------------------------------ Insert on public.foreign_tbl -> Result Output: 1, 80, 16 (3 rows) INSERT INTO rw_view1 VALUES (1, 80, 16); EXPLAIN (VERBOSE, COSTS OFF) INSERT INTO rw_view2 VALUES (2, 0, 5); -- should failed QUERY PLAN ------------------------------ Insert on public.foreign_tbl -> Result Output: 2, 0, 5 (3 rows) INSERT INTO rw_view2 VALUES (2, 0, 5); ERROR: new row violates WITH CHECK OPTION for view "rw_view2" DETAIL: Failing row contains (2, 10, 5). EXPLAIN (VERBOSE, COSTS OFF) INSERT INTO rw_view2 VALUES (2, 0, 16); -- should success QUERY PLAN ------------------------------ Insert on public.foreign_tbl -> Result Output: 2, 0, 16 (3 rows) INSERT INTO rw_view2 VALUES (2, 0, 16); select * from checkdata(); tbname | id | a | b -------------+----+----+---- base_tbl p1 | 1 | 10 | 5 base_tbl p1 | 1 | 90 | 16 base_tbl p1 | 2 | 10 | 16 base_tbl p2 | 1 | 10 | 5 base_tbl p2 | 1 | 90 | 16 base_tbl p2 | 2 | 10 | 16 foreign_tbl | 1 | 10 | 5 foreign_tbl | 1 | 90 | 16 foreign_tbl | 2 | 10 | 16 rw_view2 | 2 | 10 | 16 (10 rows) delete from base_tbl; insert into base_tbl values(1, 50, 101), (2, 50, 120); -- in and cross partition update -- (1, 60, 101), (2, 60, 120) EXPLAIN (VERBOSE, COSTS OFF) UPDATE rw_view1 SET a = a + 20 where id = 1; -- should success QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------ Update on public.foreign_tbl -> Foreign Scan on public.foreign_tbl Output: foreign_tbl.id, (foreign_tbl.a + 20), foreign_tbl.b, foreign_tbl.ctid, foreign_tbl.tableoid Node ID: 1 Remote SQL: SELECT id, a, b, ctid, tableoid FROM public.base_tbl WHERE ((a < b)) AND ((id = 1)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT id, a, b, ctid, tableoid FROM public.base_tbl WHERE ((a < b)) AND ((id = 1)) Partition Iterator Output: id, a, b, ctid, tableoid Iterations: 2 -> Partitioned Seq Scan on public.base_tbl Output: id, a, b, ctid, tableoid Filter: ((base_tbl.a < base_tbl.b) AND (base_tbl.id = 1)) Selected Partitions: 1..2 (16 rows) UPDATE rw_view1 SET a = a +20 where id = 1; EXPLAIN (VERBOSE, COSTS OFF) UPDATE rw_view1 SET a = a + 20 where id = 1; -- should success QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------ Update on public.foreign_tbl -> Foreign Scan on public.foreign_tbl Output: foreign_tbl.id, (foreign_tbl.a + 20), foreign_tbl.b, foreign_tbl.ctid, foreign_tbl.tableoid Node ID: 1 Remote SQL: SELECT id, a, b, ctid, tableoid FROM public.base_tbl WHERE ((a < b)) AND ((id = 1)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT id, a, b, ctid, tableoid FROM public.base_tbl WHERE ((a < b)) AND ((id = 1)) Partition Iterator Output: id, a, b, ctid, tableoid Iterations: 2 -> Partitioned Seq Scan on public.base_tbl Output: id, a, b, ctid, tableoid Filter: ((base_tbl.a < base_tbl.b) AND (base_tbl.id = 1)) Selected Partitions: 1..2 (16 rows) UPDATE rw_view1 SET a = a +20 where id = 1; EXPLAIN (VERBOSE, COSTS OFF) UPDATE rw_view2 SET a = a + 55 where id = 2; -- should failed QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------ Update on public.foreign_tbl -> Foreign Scan on public.foreign_tbl Output: foreign_tbl.id, (foreign_tbl.a + 55), foreign_tbl.b, foreign_tbl.ctid, foreign_tbl.tableoid Node ID: 1 Remote SQL: SELECT id, a, b, ctid, tableoid FROM public.base_tbl WHERE ((a < b)) AND ((id = 2)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT id, a, b, ctid, tableoid FROM public.base_tbl WHERE ((a < b)) AND ((id = 2)) Partition Iterator Output: id, a, b, ctid, tableoid Iterations: 2 -> Partitioned Seq Scan on public.base_tbl Output: id, a, b, ctid, tableoid Filter: ((base_tbl.a < base_tbl.b) AND (base_tbl.id = 2)) Selected Partitions: 1..2 (16 rows) UPDATE rw_view2 SET a = a + 55 where id = 2; ERROR: new row violates WITH CHECK OPTION for view "rw_view2" DETAIL: Failing row contains (2, 125, 120). EXPLAIN (VERBOSE, COSTS OFF) UPDATE rw_view2 SET a = a + 45 where id = 2; -- should success QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------ Update on public.foreign_tbl -> Foreign Scan on public.foreign_tbl Output: foreign_tbl.id, (foreign_tbl.a + 45), foreign_tbl.b, foreign_tbl.ctid, foreign_tbl.tableoid Node ID: 1 Remote SQL: SELECT id, a, b, ctid, tableoid FROM public.base_tbl WHERE ((a < b)) AND ((id = 2)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT id, a, b, ctid, tableoid FROM public.base_tbl WHERE ((a < b)) AND ((id = 2)) Partition Iterator Output: id, a, b, ctid, tableoid Iterations: 2 -> Partitioned Seq Scan on public.base_tbl Output: id, a, b, ctid, tableoid Filter: ((base_tbl.a < base_tbl.b) AND (base_tbl.id = 2)) Selected Partitions: 1..2 (16 rows) UPDATE rw_view2 SET a = a + 45 where id = 2; select * from checkdata(); tbname | id | a | b -------------+----+-----+----- base_tbl p1 | 1 | 120 | 101 base_tbl p1 | 2 | 115 | 120 base_tbl p2 | 1 | 120 | 101 base_tbl p2 | 2 | 115 | 120 foreign_tbl | 1 | 120 | 101 foreign_tbl | 2 | 115 | 120 rw_view2 | 2 | 115 | 120 (7 rows) DROP TRIGGER row_before_insupd_trigger ON base_tbl; DROP FUNCTION row_before_insupd_trigfunc; DROP FUNCTION checkdata; DROP VIEW rw_view1 cascade; DROP VIEW rw_view2 cascade; DROP FOREIGN TABLE foreign_tbl CASCADE; DROP TABLE base_tbl CASCADE; -- ====================================================================================================================================== -- TEST-MODULE: test writable foreign table stuff -- -------------------------------------- -- ====================================================================================================================================== EXPLAIN (verbose, costs off) INSERT INTO ft2 (c1,c2,c3) SELECT c1+1000,c2+100, c3 || c3 FROM ft2 LIMIT 20; QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Insert on public.ft2 -> Subquery Scan on "*SELECT*" Output: "*SELECT*"."?column?", "*SELECT*"."?column?", NULL::integer, "*SELECT*"."?column?", NULL::timestamp with time zone, NULL::timestamp without time zone, NULL::character varying, 'ft2 '::character(10), NULL::user_enum -> Foreign Scan on public.ft2 Output: (public.ft2.c1 + 1000), (public.ft2.c2 + 100), (public.ft2.c3 || public.ft2.c3) Node ID: 1 Remote SQL: SELECT "C 1", c2, c3 FROM "S 1"."T 1" LIMIT 20::bigint FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3 FROM "S 1"."T 1" LIMIT 20::bigint Limit Output: "C 1", c2, c3 -> Partition Iterator Output: "C 1", c2, c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3 Selected Partitions: 1..2 (19 rows) INSERT INTO ft2 (c1,c2,c3) SELECT c1+1000,c2+100, c3 || c3 FROM ft2 LIMIT 20; INSERT INTO ft2 (c1,c2,c3) VALUES (1101,201,'aaa'), (1102,202,'bbb'), (1103,203,'ccc') RETURNING *; c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 ------+-----+-----+----+----+----+------------+---- 1101 | 201 | aaa | | | | ft2 | 1102 | 202 | bbb | | | | ft2 | 1103 | 203 | ccc | | | | ft2 | (3 rows) INSERT INTO ft2 (c1,c2,c3) VALUES (1104,204,'ddd'), (1105,205,'eee'); EXPLAIN (verbose, costs off) UPDATE ft2 SET c2 = c2 + 300, c3 = c3 || '_update3' WHERE c1 % 10 = 3; -- can be pushed down QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------------------------------- Update on public.ft2 -> Foreign Scan on public.ft2 Output: c1, (c2 + 300), NULL::integer, (c3 || '_update3'::text), c4, c5, c6, c7, c8, ctid, tableoid Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid FROM "S 1"."T 1" WHERE ((("C 1" % 10) = 3)) FOR UPDATE FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid FROM "S 1"."T 1" WHERE ((("C 1" % 10) = 3)) FOR UPDATE LockRows Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid, ctid, tableoid -> Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid, ctid, tableoid Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid, ctid, tableoid Filter: (("T 1"."C 1" % 10) = 3) Selected Partitions: 1..2 (18 rows) UPDATE ft2 SET c2 = c2 + 300, c3 = c3 || '_update3' WHERE c1 % 10 = 3; EXPLAIN (verbose, costs off) UPDATE ft2 SET c2 = c2 + 400, c3 = c3 || '_update7' WHERE c1 % 10 = 7 RETURNING *; -- can be pushed down QUERY PLAN ---------------------------------------------------------------------------------------------------------------------------------------------------------- Update on public.ft2 Output: c1, c2, c3, c4, c5, c6, c7, c8 -> Foreign Scan on public.ft2 Output: c1, (c2 + 400), NULL::integer, (c3 || '_update7'::text), c4, c5, c6, c7, c8, ctid, tableoid Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid FROM "S 1"."T 1" WHERE ((("C 1" % 10) = 7)) FOR UPDATE FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid FROM "S 1"."T 1" WHERE ((("C 1" % 10) = 7)) FOR UPDATE LockRows Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid, ctid, tableoid -> Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid, ctid, tableoid Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid, ctid, tableoid Filter: (("T 1"."C 1" % 10) = 7) Selected Partitions: 1..2 (19 rows) UPDATE ft2 SET c2 = c2 + 400, c3 = c3 || '_update7' WHERE c1 % 10 = 7 RETURNING *; c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 ------+-----+--------------------+------------------------------+--------------------------+----+------------+----- 7 | 407 | 00007_update7 | Thu Jan 08 00:00:00 1970 PST | Thu Jan 08 00:00:00 1970 | 7 | 7 | foo 17 | 407 | 00017_update7 | Sun Jan 18 00:00:00 1970 PST | Sun Jan 18 00:00:00 1970 | 7 | 7 | foo 27 | 407 | 00027_update7 | Wed Jan 28 00:00:00 1970 PST | Wed Jan 28 00:00:00 1970 | 7 | 7 | foo 37 | 407 | 00037_update7 | Sat Feb 07 00:00:00 1970 PST | Sat Feb 07 00:00:00 1970 | 7 | 7 | foo 47 | 407 | 00047_update7 | Tue Feb 17 00:00:00 1970 PST | Tue Feb 17 00:00:00 1970 | 7 | 7 | foo 57 | 407 | 00057_update7 | Fri Feb 27 00:00:00 1970 PST | Fri Feb 27 00:00:00 1970 | 7 | 7 | foo 67 | 407 | 00067_update7 | Mon Mar 09 00:00:00 1970 PST | Mon Mar 09 00:00:00 1970 | 7 | 7 | foo 77 | 407 | 00077_update7 | Thu Mar 19 00:00:00 1970 PST | Thu Mar 19 00:00:00 1970 | 7 | 7 | foo 87 | 407 | 00087_update7 | Sun Mar 29 00:00:00 1970 PST | Sun Mar 29 00:00:00 1970 | 7 | 7 | foo 97 | 407 | 00097_update7 | Wed Apr 08 00:00:00 1970 PST | Wed Apr 08 00:00:00 1970 | 7 | 7 | foo 107 | 407 | 00107_update7 | Thu Jan 08 00:00:00 1970 PST | Thu Jan 08 00:00:00 1970 | 7 | 7 | foo 117 | 407 | 00117_update7 | Sun Jan 18 00:00:00 1970 PST | Sun Jan 18 00:00:00 1970 | 7 | 7 | foo 127 | 407 | 00127_update7 | Wed Jan 28 00:00:00 1970 PST | Wed Jan 28 00:00:00 1970 | 7 | 7 | foo 137 | 407 | 00137_update7 | Sat Feb 07 00:00:00 1970 PST | Sat Feb 07 00:00:00 1970 | 7 | 7 | foo 147 | 407 | 00147_update7 | Tue Feb 17 00:00:00 1970 PST | Tue Feb 17 00:00:00 1970 | 7 | 7 | foo 157 | 407 | 00157_update7 | Fri Feb 27 00:00:00 1970 PST | Fri Feb 27 00:00:00 1970 | 7 | 7 | foo 167 | 407 | 00167_update7 | Mon Mar 09 00:00:00 1970 PST | Mon Mar 09 00:00:00 1970 | 7 | 7 | foo 177 | 407 | 00177_update7 | Thu Mar 19 00:00:00 1970 PST | Thu Mar 19 00:00:00 1970 | 7 | 7 | foo 187 | 407 | 00187_update7 | Sun Mar 29 00:00:00 1970 PST | Sun Mar 29 00:00:00 1970 | 7 | 7 | foo 197 | 407 | 00197_update7 | Wed Apr 08 00:00:00 1970 PST | Wed Apr 08 00:00:00 1970 | 7 | 7 | foo 207 | 407 | 00207_update7 | Thu Jan 08 00:00:00 1970 PST | Thu Jan 08 00:00:00 1970 | 7 | 7 | foo 217 | 407 | 00217_update7 | Sun Jan 18 00:00:00 1970 PST | Sun Jan 18 00:00:00 1970 | 7 | 7 | foo 227 | 407 | 00227_update7 | Wed Jan 28 00:00:00 1970 PST | Wed Jan 28 00:00:00 1970 | 7 | 7 | foo 237 | 407 | 00237_update7 | Sat Feb 07 00:00:00 1970 PST | Sat Feb 07 00:00:00 1970 | 7 | 7 | foo 247 | 407 | 00247_update7 | Tue Feb 17 00:00:00 1970 PST | Tue Feb 17 00:00:00 1970 | 7 | 7 | foo 257 | 407 | 00257_update7 | Fri Feb 27 00:00:00 1970 PST | Fri Feb 27 00:00:00 1970 | 7 | 7 | foo 267 | 407 | 00267_update7 | Mon Mar 09 00:00:00 1970 PST | Mon Mar 09 00:00:00 1970 | 7 | 7 | foo 277 | 407 | 00277_update7 | Thu Mar 19 00:00:00 1970 PST | Thu Mar 19 00:00:00 1970 | 7 | 7 | foo 287 | 407 | 00287_update7 | Sun Mar 29 00:00:00 1970 PST | Sun Mar 29 00:00:00 1970 | 7 | 7 | foo 297 | 407 | 00297_update7 | Wed Apr 08 00:00:00 1970 PST | Wed Apr 08 00:00:00 1970 | 7 | 7 | foo 307 | 407 | 00307_update7 | Thu Jan 08 00:00:00 1970 PST | Thu Jan 08 00:00:00 1970 | 7 | 7 | foo 317 | 407 | 00317_update7 | Sun Jan 18 00:00:00 1970 PST | Sun Jan 18 00:00:00 1970 | 7 | 7 | foo 327 | 407 | 00327_update7 | Wed Jan 28 00:00:00 1970 PST | Wed Jan 28 00:00:00 1970 | 7 | 7 | foo 337 | 407 | 00337_update7 | Sat Feb 07 00:00:00 1970 PST | Sat Feb 07 00:00:00 1970 | 7 | 7 | foo 347 | 407 | 00347_update7 | Tue Feb 17 00:00:00 1970 PST | Tue Feb 17 00:00:00 1970 | 7 | 7 | foo 357 | 407 | 00357_update7 | Fri Feb 27 00:00:00 1970 PST | Fri Feb 27 00:00:00 1970 | 7 | 7 | foo 367 | 407 | 00367_update7 | Mon Mar 09 00:00:00 1970 PST | Mon Mar 09 00:00:00 1970 | 7 | 7 | foo 377 | 407 | 00377_update7 | Thu Mar 19 00:00:00 1970 PST | Thu Mar 19 00:00:00 1970 | 7 | 7 | foo 387 | 407 | 00387_update7 | Sun Mar 29 00:00:00 1970 PST | Sun Mar 29 00:00:00 1970 | 7 | 7 | foo 397 | 407 | 00397_update7 | Wed Apr 08 00:00:00 1970 PST | Wed Apr 08 00:00:00 1970 | 7 | 7 | foo 407 | 407 | 00407_update7 | Thu Jan 08 00:00:00 1970 PST | Thu Jan 08 00:00:00 1970 | 7 | 7 | foo 417 | 407 | 00417_update7 | Sun Jan 18 00:00:00 1970 PST | Sun Jan 18 00:00:00 1970 | 7 | 7 | foo 427 | 407 | 00427_update7 | Wed Jan 28 00:00:00 1970 PST | Wed Jan 28 00:00:00 1970 | 7 | 7 | foo 437 | 407 | 00437_update7 | Sat Feb 07 00:00:00 1970 PST | Sat Feb 07 00:00:00 1970 | 7 | 7 | foo 447 | 407 | 00447_update7 | Tue Feb 17 00:00:00 1970 PST | Tue Feb 17 00:00:00 1970 | 7 | 7 | foo 457 | 407 | 00457_update7 | Fri Feb 27 00:00:00 1970 PST | Fri Feb 27 00:00:00 1970 | 7 | 7 | foo 467 | 407 | 00467_update7 | Mon Mar 09 00:00:00 1970 PST | Mon Mar 09 00:00:00 1970 | 7 | 7 | foo 477 | 407 | 00477_update7 | Thu Mar 19 00:00:00 1970 PST | Thu Mar 19 00:00:00 1970 | 7 | 7 | foo 487 | 407 | 00487_update7 | Sun Mar 29 00:00:00 1970 PST | Sun Mar 29 00:00:00 1970 | 7 | 7 | foo 497 | 407 | 00497_update7 | Wed Apr 08 00:00:00 1970 PST | Wed Apr 08 00:00:00 1970 | 7 | 7 | foo 507 | 407 | 00507_update7 | Thu Jan 08 00:00:00 1970 PST | Thu Jan 08 00:00:00 1970 | 7 | 7 | foo 517 | 407 | 00517_update7 | Sun Jan 18 00:00:00 1970 PST | Sun Jan 18 00:00:00 1970 | 7 | 7 | foo 527 | 407 | 00527_update7 | Wed Jan 28 00:00:00 1970 PST | Wed Jan 28 00:00:00 1970 | 7 | 7 | foo 537 | 407 | 00537_update7 | Sat Feb 07 00:00:00 1970 PST | Sat Feb 07 00:00:00 1970 | 7 | 7 | foo 547 | 407 | 00547_update7 | Tue Feb 17 00:00:00 1970 PST | Tue Feb 17 00:00:00 1970 | 7 | 7 | foo 557 | 407 | 00557_update7 | Fri Feb 27 00:00:00 1970 PST | Fri Feb 27 00:00:00 1970 | 7 | 7 | foo 567 | 407 | 00567_update7 | Mon Mar 09 00:00:00 1970 PST | Mon Mar 09 00:00:00 1970 | 7 | 7 | foo 577 | 407 | 00577_update7 | Thu Mar 19 00:00:00 1970 PST | Thu Mar 19 00:00:00 1970 | 7 | 7 | foo 587 | 407 | 00587_update7 | Sun Mar 29 00:00:00 1970 PST | Sun Mar 29 00:00:00 1970 | 7 | 7 | foo 597 | 407 | 00597_update7 | Wed Apr 08 00:00:00 1970 PST | Wed Apr 08 00:00:00 1970 | 7 | 7 | foo 607 | 407 | 00607_update7 | Thu Jan 08 00:00:00 1970 PST | Thu Jan 08 00:00:00 1970 | 7 | 7 | foo 617 | 407 | 00617_update7 | Sun Jan 18 00:00:00 1970 PST | Sun Jan 18 00:00:00 1970 | 7 | 7 | foo 627 | 407 | 00627_update7 | Wed Jan 28 00:00:00 1970 PST | Wed Jan 28 00:00:00 1970 | 7 | 7 | foo 637 | 407 | 00637_update7 | Sat Feb 07 00:00:00 1970 PST | Sat Feb 07 00:00:00 1970 | 7 | 7 | foo 647 | 407 | 00647_update7 | Tue Feb 17 00:00:00 1970 PST | Tue Feb 17 00:00:00 1970 | 7 | 7 | foo 657 | 407 | 00657_update7 | Fri Feb 27 00:00:00 1970 PST | Fri Feb 27 00:00:00 1970 | 7 | 7 | foo 667 | 407 | 00667_update7 | Mon Mar 09 00:00:00 1970 PST | Mon Mar 09 00:00:00 1970 | 7 | 7 | foo 677 | 407 | 00677_update7 | Thu Mar 19 00:00:00 1970 PST | Thu Mar 19 00:00:00 1970 | 7 | 7 | foo 687 | 407 | 00687_update7 | Sun Mar 29 00:00:00 1970 PST | Sun Mar 29 00:00:00 1970 | 7 | 7 | foo 697 | 407 | 00697_update7 | Wed Apr 08 00:00:00 1970 PST | Wed Apr 08 00:00:00 1970 | 7 | 7 | foo 707 | 407 | 00707_update7 | Thu Jan 08 00:00:00 1970 PST | Thu Jan 08 00:00:00 1970 | 7 | 7 | foo 717 | 407 | 00717_update7 | Sun Jan 18 00:00:00 1970 PST | Sun Jan 18 00:00:00 1970 | 7 | 7 | foo 727 | 407 | 00727_update7 | Wed Jan 28 00:00:00 1970 PST | Wed Jan 28 00:00:00 1970 | 7 | 7 | foo 737 | 407 | 00737_update7 | Sat Feb 07 00:00:00 1970 PST | Sat Feb 07 00:00:00 1970 | 7 | 7 | foo 747 | 407 | 00747_update7 | Tue Feb 17 00:00:00 1970 PST | Tue Feb 17 00:00:00 1970 | 7 | 7 | foo 757 | 407 | 00757_update7 | Fri Feb 27 00:00:00 1970 PST | Fri Feb 27 00:00:00 1970 | 7 | 7 | foo 767 | 407 | 00767_update7 | Mon Mar 09 00:00:00 1970 PST | Mon Mar 09 00:00:00 1970 | 7 | 7 | foo 777 | 407 | 00777_update7 | Thu Mar 19 00:00:00 1970 PST | Thu Mar 19 00:00:00 1970 | 7 | 7 | foo 787 | 407 | 00787_update7 | Sun Mar 29 00:00:00 1970 PST | Sun Mar 29 00:00:00 1970 | 7 | 7 | foo 797 | 407 | 00797_update7 | Wed Apr 08 00:00:00 1970 PST | Wed Apr 08 00:00:00 1970 | 7 | 7 | foo 807 | 407 | 00807_update7 | Thu Jan 08 00:00:00 1970 PST | Thu Jan 08 00:00:00 1970 | 7 | 7 | foo 817 | 407 | 00817_update7 | Sun Jan 18 00:00:00 1970 PST | Sun Jan 18 00:00:00 1970 | 7 | 7 | foo 827 | 407 | 00827_update7 | Wed Jan 28 00:00:00 1970 PST | Wed Jan 28 00:00:00 1970 | 7 | 7 | foo 837 | 407 | 00837_update7 | Sat Feb 07 00:00:00 1970 PST | Sat Feb 07 00:00:00 1970 | 7 | 7 | foo 847 | 407 | 00847_update7 | Tue Feb 17 00:00:00 1970 PST | Tue Feb 17 00:00:00 1970 | 7 | 7 | foo 857 | 407 | 00857_update7 | Fri Feb 27 00:00:00 1970 PST | Fri Feb 27 00:00:00 1970 | 7 | 7 | foo 867 | 407 | 00867_update7 | Mon Mar 09 00:00:00 1970 PST | Mon Mar 09 00:00:00 1970 | 7 | 7 | foo 877 | 407 | 00877_update7 | Thu Mar 19 00:00:00 1970 PST | Thu Mar 19 00:00:00 1970 | 7 | 7 | foo 887 | 407 | 00887_update7 | Sun Mar 29 00:00:00 1970 PST | Sun Mar 29 00:00:00 1970 | 7 | 7 | foo 897 | 407 | 00897_update7 | Wed Apr 08 00:00:00 1970 PST | Wed Apr 08 00:00:00 1970 | 7 | 7 | foo 907 | 407 | 00907_update7 | Thu Jan 08 00:00:00 1970 PST | Thu Jan 08 00:00:00 1970 | 7 | 7 | foo 917 | 407 | 00917_update7 | Sun Jan 18 00:00:00 1970 PST | Sun Jan 18 00:00:00 1970 | 7 | 7 | foo 927 | 407 | 00927_update7 | Wed Jan 28 00:00:00 1970 PST | Wed Jan 28 00:00:00 1970 | 7 | 7 | foo 937 | 407 | 00937_update7 | Sat Feb 07 00:00:00 1970 PST | Sat Feb 07 00:00:00 1970 | 7 | 7 | foo 947 | 407 | 00947_update7 | Tue Feb 17 00:00:00 1970 PST | Tue Feb 17 00:00:00 1970 | 7 | 7 | foo 957 | 407 | 00957_update7 | Fri Feb 27 00:00:00 1970 PST | Fri Feb 27 00:00:00 1970 | 7 | 7 | foo 967 | 407 | 00967_update7 | Mon Mar 09 00:00:00 1970 PST | Mon Mar 09 00:00:00 1970 | 7 | 7 | foo 977 | 407 | 00977_update7 | Thu Mar 19 00:00:00 1970 PST | Thu Mar 19 00:00:00 1970 | 7 | 7 | foo 987 | 407 | 00987_update7 | Sun Mar 29 00:00:00 1970 PST | Sun Mar 29 00:00:00 1970 | 7 | 7 | foo 997 | 407 | 00997_update7 | Wed Apr 08 00:00:00 1970 PST | Wed Apr 08 00:00:00 1970 | 7 | 7 | foo 1007 | 507 | 0000700007_update7 | | | | ft2 | 1017 | 507 | 0001700017_update7 | | | | ft2 | (102 rows) EXPLAIN (verbose, costs off) UPDATE ft2 SET c2 = ft2.c2 + 500, c3 = ft2.c3 || '_update9', c7 = DEFAULT FROM ft1 WHERE ft1.c1 = ft2.c2 AND ft1.c1 % 10 = 9; -- can be pushed down QUERY PLAN --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Update on public.ft2 -> Nested Loop Output: ft2.c1, (ft2.c2 + 500), NULL::integer, (ft2.c3 || '_update9'::text), ft2.c4, ft2.c5, ft2.c6, 'ft2 '::character(10), ft2.c8, ft2.ctid, ft2.tableoid, ft1.* Join Filter: (ft2.c2 = ft1.c1) -> Foreign Scan on public.ft2 Output: ft2.c1, ft2.c2, ft2.c3, ft2.c4, ft2.c5, ft2.c6, ft2.c8, ft2.ctid, ft2.tableoid Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c8, ctid, tableoid FROM "S 1"."T 1" WHERE (((c2 % 10) = 9)) FOR UPDATE -> Materialize Output: ft1.*, ft1.c1 -> Foreign Scan on public.ft1 Output: ft1.*, ft1.c1 Node ID: 2 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE ((("C 1" % 10) = 9)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c8, ctid, tableoid FROM "S 1"."T 1" WHERE (((c2 % 10) = 9)) FOR UPDATE LockRows Output: "C 1", c2, c3, c4, c5, c6, c8, ctid, tableoid, ctid, tableoid -> Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c8, ctid, tableoid, ctid, tableoid Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c8, ctid, tableoid, ctid, tableoid Filter: (("T 1".c2 % 10) = 9) Selected Partitions: 1..2 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE ((("C 1" % 10) = 9)) Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Filter: (("T 1"."C 1" % 10) = 9) Selected Partitions: 1..2 (35 rows) UPDATE ft2 SET c2 = ft2.c2 + 500, c3 = ft2.c3 || '_update9', c7 = DEFAULT FROM ft1 WHERE ft1.c1 = ft2.c2 AND ft1.c1 % 10 = 9; EXPLAIN (verbose, costs off) DELETE FROM ft2 WHERE c1 % 10 = 5 RETURNING c1, c4; -- can be pushed down QUERY PLAN ----------------------------------------------------------------------------------------------------------------------- Delete on public.ft2 Output: c1, c4 -> Foreign Scan on public.ft2 Output: ctid, tableoid Node ID: 1 Remote SQL: SELECT ctid, tableoid FROM "S 1"."T 1" WHERE ((("C 1" % 10) = 5)) FOR UPDATE FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT ctid, tableoid FROM "S 1"."T 1" WHERE ((("C 1" % 10) = 5)) FOR UPDATE LockRows Output: ctid, tableoid, ctid, tableoid -> Partition Iterator Output: ctid, tableoid, ctid, tableoid Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: ctid, tableoid, ctid, tableoid Filter: (("T 1"."C 1" % 10) = 5) Selected Partitions: 1..2 (19 rows) DELETE FROM ft2 WHERE c1 % 10 = 5 RETURNING c1, c4; c1 | c4 ------+------------------------------ 5 | Tue Jan 06 00:00:00 1970 PST 15 | Fri Jan 16 00:00:00 1970 PST 25 | Mon Jan 26 00:00:00 1970 PST 35 | Thu Feb 05 00:00:00 1970 PST 45 | Sun Feb 15 00:00:00 1970 PST 55 | Wed Feb 25 00:00:00 1970 PST 65 | Sat Mar 07 00:00:00 1970 PST 75 | Tue Mar 17 00:00:00 1970 PST 85 | Fri Mar 27 00:00:00 1970 PST 95 | Mon Apr 06 00:00:00 1970 PST 105 | Tue Jan 06 00:00:00 1970 PST 115 | Fri Jan 16 00:00:00 1970 PST 125 | Mon Jan 26 00:00:00 1970 PST 135 | Thu Feb 05 00:00:00 1970 PST 145 | Sun Feb 15 00:00:00 1970 PST 155 | Wed Feb 25 00:00:00 1970 PST 165 | Sat Mar 07 00:00:00 1970 PST 175 | Tue Mar 17 00:00:00 1970 PST 185 | Fri Mar 27 00:00:00 1970 PST 195 | Mon Apr 06 00:00:00 1970 PST 205 | Tue Jan 06 00:00:00 1970 PST 215 | Fri Jan 16 00:00:00 1970 PST 225 | Mon Jan 26 00:00:00 1970 PST 235 | Thu Feb 05 00:00:00 1970 PST 245 | Sun Feb 15 00:00:00 1970 PST 255 | Wed Feb 25 00:00:00 1970 PST 265 | Sat Mar 07 00:00:00 1970 PST 275 | Tue Mar 17 00:00:00 1970 PST 285 | Fri Mar 27 00:00:00 1970 PST 295 | Mon Apr 06 00:00:00 1970 PST 305 | Tue Jan 06 00:00:00 1970 PST 315 | Fri Jan 16 00:00:00 1970 PST 325 | Mon Jan 26 00:00:00 1970 PST 335 | Thu Feb 05 00:00:00 1970 PST 345 | Sun Feb 15 00:00:00 1970 PST 355 | Wed Feb 25 00:00:00 1970 PST 365 | Sat Mar 07 00:00:00 1970 PST 375 | Tue Mar 17 00:00:00 1970 PST 385 | Fri Mar 27 00:00:00 1970 PST 395 | Mon Apr 06 00:00:00 1970 PST 405 | Tue Jan 06 00:00:00 1970 PST 415 | Fri Jan 16 00:00:00 1970 PST 425 | Mon Jan 26 00:00:00 1970 PST 435 | Thu Feb 05 00:00:00 1970 PST 445 | Sun Feb 15 00:00:00 1970 PST 455 | Wed Feb 25 00:00:00 1970 PST 465 | Sat Mar 07 00:00:00 1970 PST 475 | Tue Mar 17 00:00:00 1970 PST 485 | Fri Mar 27 00:00:00 1970 PST 495 | Mon Apr 06 00:00:00 1970 PST 505 | Tue Jan 06 00:00:00 1970 PST 515 | Fri Jan 16 00:00:00 1970 PST 525 | Mon Jan 26 00:00:00 1970 PST 535 | Thu Feb 05 00:00:00 1970 PST 545 | Sun Feb 15 00:00:00 1970 PST 555 | Wed Feb 25 00:00:00 1970 PST 565 | Sat Mar 07 00:00:00 1970 PST 575 | Tue Mar 17 00:00:00 1970 PST 585 | Fri Mar 27 00:00:00 1970 PST 595 | Mon Apr 06 00:00:00 1970 PST 605 | Tue Jan 06 00:00:00 1970 PST 615 | Fri Jan 16 00:00:00 1970 PST 625 | Mon Jan 26 00:00:00 1970 PST 635 | Thu Feb 05 00:00:00 1970 PST 645 | Sun Feb 15 00:00:00 1970 PST 655 | Wed Feb 25 00:00:00 1970 PST 665 | Sat Mar 07 00:00:00 1970 PST 675 | Tue Mar 17 00:00:00 1970 PST 685 | Fri Mar 27 00:00:00 1970 PST 695 | Mon Apr 06 00:00:00 1970 PST 705 | Tue Jan 06 00:00:00 1970 PST 715 | Fri Jan 16 00:00:00 1970 PST 725 | Mon Jan 26 00:00:00 1970 PST 735 | Thu Feb 05 00:00:00 1970 PST 745 | Sun Feb 15 00:00:00 1970 PST 755 | Wed Feb 25 00:00:00 1970 PST 765 | Sat Mar 07 00:00:00 1970 PST 775 | Tue Mar 17 00:00:00 1970 PST 785 | Fri Mar 27 00:00:00 1970 PST 795 | Mon Apr 06 00:00:00 1970 PST 805 | Tue Jan 06 00:00:00 1970 PST 815 | Fri Jan 16 00:00:00 1970 PST 825 | Mon Jan 26 00:00:00 1970 PST 835 | Thu Feb 05 00:00:00 1970 PST 845 | Sun Feb 15 00:00:00 1970 PST 855 | Wed Feb 25 00:00:00 1970 PST 865 | Sat Mar 07 00:00:00 1970 PST 875 | Tue Mar 17 00:00:00 1970 PST 885 | Fri Mar 27 00:00:00 1970 PST 895 | Mon Apr 06 00:00:00 1970 PST 905 | Tue Jan 06 00:00:00 1970 PST 915 | Fri Jan 16 00:00:00 1970 PST 925 | Mon Jan 26 00:00:00 1970 PST 935 | Thu Feb 05 00:00:00 1970 PST 945 | Sun Feb 15 00:00:00 1970 PST 955 | Wed Feb 25 00:00:00 1970 PST 965 | Sat Mar 07 00:00:00 1970 PST 975 | Tue Mar 17 00:00:00 1970 PST 985 | Fri Mar 27 00:00:00 1970 PST 995 | Mon Apr 06 00:00:00 1970 PST 1005 | 1015 | 1105 | (103 rows) EXPLAIN (verbose, costs off) DELETE FROM ft2 USING ft1 WHERE ft1.c1 = ft2.c2 AND ft1.c1 % 10 = 2; -- can be pushed down QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------- Delete on public.ft2 -> Nested Loop Output: ft2.ctid, ft2.tableoid, ft1.* Join Filter: (ft2.c2 = ft1.c1) -> Foreign Scan on public.ft2 Output: ft2.ctid, ft2.tableoid, ft2.c2 Node ID: 1 Remote SQL: SELECT c2, ctid, tableoid FROM "S 1"."T 1" WHERE (((c2 % 10) = 2)) FOR UPDATE -> Materialize Output: ft1.*, ft1.c1 -> Foreign Scan on public.ft1 Output: ft1.*, ft1.c1 Node ID: 2 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE ((("C 1" % 10) = 2)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c2, ctid, tableoid FROM "S 1"."T 1" WHERE (((c2 % 10) = 2)) FOR UPDATE LockRows Output: c2, ctid, tableoid, ctid, tableoid -> Partition Iterator Output: c2, ctid, tableoid, ctid, tableoid Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: c2, ctid, tableoid, ctid, tableoid Filter: (("T 1".c2 % 10) = 2) Selected Partitions: 1..2 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE ((("C 1" % 10) = 2)) Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Filter: (("T 1"."C 1" % 10) = 2) Selected Partitions: 1..2 (35 rows) DELETE FROM ft2 USING ft1 WHERE ft1.c1 = ft2.c2 AND ft1.c1 % 10 = 2; SELECT c1,c2,c3,c4 FROM ft2 ORDER BY c1; c1 | c2 | c3 | c4 ------+-----+--------------------+------------------------------ 1 | 1 | 00001 | Fri Jan 02 00:00:00 1970 PST 3 | 303 | 00003_update3 | Sun Jan 04 00:00:00 1970 PST 4 | 4 | 00004 | Mon Jan 05 00:00:00 1970 PST 6 | 6 | 00006 | Wed Jan 07 00:00:00 1970 PST 7 | 407 | 00007_update7 | Thu Jan 08 00:00:00 1970 PST 8 | 8 | 00008 | Fri Jan 09 00:00:00 1970 PST 9 | 509 | 00009_update9 | Sat Jan 10 00:00:00 1970 PST 10 | 0 | 00010 | Sun Jan 11 00:00:00 1970 PST 11 | 1 | 00011 | Mon Jan 12 00:00:00 1970 PST 13 | 303 | 00013_update3 | Wed Jan 14 00:00:00 1970 PST 14 | 4 | 00014 | Thu Jan 15 00:00:00 1970 PST 16 | 6 | 00016 | Sat Jan 17 00:00:00 1970 PST 17 | 407 | 00017_update7 | Sun Jan 18 00:00:00 1970 PST 18 | 8 | 00018 | Mon Jan 19 00:00:00 1970 PST 19 | 509 | 00019_update9 | Tue Jan 20 00:00:00 1970 PST 20 | 0 | 00020 | Wed Jan 21 00:00:00 1970 PST 21 | 1 | 00021 | Thu Jan 22 00:00:00 1970 PST 23 | 303 | 00023_update3 | Sat Jan 24 00:00:00 1970 PST 24 | 4 | 00024 | Sun Jan 25 00:00:00 1970 PST 26 | 6 | 00026 | Tue Jan 27 00:00:00 1970 PST 27 | 407 | 00027_update7 | Wed Jan 28 00:00:00 1970 PST 28 | 8 | 00028 | Thu Jan 29 00:00:00 1970 PST 29 | 509 | 00029_update9 | Fri Jan 30 00:00:00 1970 PST 30 | 0 | 00030 | Sat Jan 31 00:00:00 1970 PST 31 | 1 | 00031 | Sun Feb 01 00:00:00 1970 PST 33 | 303 | 00033_update3 | Tue Feb 03 00:00:00 1970 PST 34 | 4 | 00034 | Wed Feb 04 00:00:00 1970 PST 36 | 6 | 00036 | Fri Feb 06 00:00:00 1970 PST 37 | 407 | 00037_update7 | Sat Feb 07 00:00:00 1970 PST 38 | 8 | 00038 | Sun Feb 08 00:00:00 1970 PST 39 | 509 | 00039_update9 | Mon Feb 09 00:00:00 1970 PST 40 | 0 | 00040 | Tue Feb 10 00:00:00 1970 PST 41 | 1 | 00041 | Wed Feb 11 00:00:00 1970 PST 43 | 303 | 00043_update3 | Fri Feb 13 00:00:00 1970 PST 44 | 4 | 00044 | Sat Feb 14 00:00:00 1970 PST 46 | 6 | 00046 | Mon Feb 16 00:00:00 1970 PST 47 | 407 | 00047_update7 | Tue Feb 17 00:00:00 1970 PST 48 | 8 | 00048 | Wed Feb 18 00:00:00 1970 PST 49 | 509 | 00049_update9 | Thu Feb 19 00:00:00 1970 PST 50 | 0 | 00050 | Fri Feb 20 00:00:00 1970 PST 51 | 1 | 00051 | Sat Feb 21 00:00:00 1970 PST 53 | 303 | 00053_update3 | Mon Feb 23 00:00:00 1970 PST 54 | 4 | 00054 | Tue Feb 24 00:00:00 1970 PST 56 | 6 | 00056 | Thu Feb 26 00:00:00 1970 PST 57 | 407 | 00057_update7 | Fri Feb 27 00:00:00 1970 PST 58 | 8 | 00058 | Sat Feb 28 00:00:00 1970 PST 59 | 509 | 00059_update9 | Sun Mar 01 00:00:00 1970 PST 60 | 0 | 00060 | Mon Mar 02 00:00:00 1970 PST 61 | 1 | 00061 | Tue Mar 03 00:00:00 1970 PST 63 | 303 | 00063_update3 | Thu Mar 05 00:00:00 1970 PST 64 | 4 | 00064 | Fri Mar 06 00:00:00 1970 PST 66 | 6 | 00066 | Sun Mar 08 00:00:00 1970 PST 67 | 407 | 00067_update7 | Mon Mar 09 00:00:00 1970 PST 68 | 8 | 00068 | Tue Mar 10 00:00:00 1970 PST 69 | 509 | 00069_update9 | Wed Mar 11 00:00:00 1970 PST 70 | 0 | 00070 | Thu Mar 12 00:00:00 1970 PST 71 | 1 | 00071 | Fri Mar 13 00:00:00 1970 PST 73 | 303 | 00073_update3 | Sun Mar 15 00:00:00 1970 PST 74 | 4 | 00074 | Mon Mar 16 00:00:00 1970 PST 76 | 6 | 00076 | Wed Mar 18 00:00:00 1970 PST 77 | 407 | 00077_update7 | Thu Mar 19 00:00:00 1970 PST 78 | 8 | 00078 | Fri Mar 20 00:00:00 1970 PST 79 | 509 | 00079_update9 | Sat Mar 21 00:00:00 1970 PST 80 | 0 | 00080 | Sun Mar 22 00:00:00 1970 PST 81 | 1 | 00081 | Mon Mar 23 00:00:00 1970 PST 83 | 303 | 00083_update3 | Wed Mar 25 00:00:00 1970 PST 84 | 4 | 00084 | Thu Mar 26 00:00:00 1970 PST 86 | 6 | 00086 | Sat Mar 28 00:00:00 1970 PST 87 | 407 | 00087_update7 | Sun Mar 29 00:00:00 1970 PST 88 | 8 | 00088 | Mon Mar 30 00:00:00 1970 PST 89 | 509 | 00089_update9 | Tue Mar 31 00:00:00 1970 PST 90 | 0 | 00090 | Wed Apr 01 00:00:00 1970 PST 91 | 1 | 00091 | Thu Apr 02 00:00:00 1970 PST 93 | 303 | 00093_update3 | Sat Apr 04 00:00:00 1970 PST 94 | 4 | 00094 | Sun Apr 05 00:00:00 1970 PST 96 | 6 | 00096 | Tue Apr 07 00:00:00 1970 PST 97 | 407 | 00097_update7 | Wed Apr 08 00:00:00 1970 PST 98 | 8 | 00098 | Thu Apr 09 00:00:00 1970 PST 99 | 509 | 00099_update9 | Fri Apr 10 00:00:00 1970 PST 100 | 0 | 00100 | Thu Jan 01 00:00:00 1970 PST 101 | 1 | 00101 | Fri Jan 02 00:00:00 1970 PST 103 | 303 | 00103_update3 | Sun Jan 04 00:00:00 1970 PST 104 | 4 | 00104 | Mon Jan 05 00:00:00 1970 PST 106 | 6 | 00106 | Wed Jan 07 00:00:00 1970 PST 107 | 407 | 00107_update7 | Thu Jan 08 00:00:00 1970 PST 108 | 8 | 00108 | Fri Jan 09 00:00:00 1970 PST 109 | 509 | 00109_update9 | Sat Jan 10 00:00:00 1970 PST 110 | 0 | 00110 | Sun Jan 11 00:00:00 1970 PST 111 | 1 | 00111 | Mon Jan 12 00:00:00 1970 PST 113 | 303 | 00113_update3 | Wed Jan 14 00:00:00 1970 PST 114 | 4 | 00114 | Thu Jan 15 00:00:00 1970 PST 116 | 6 | 00116 | Sat Jan 17 00:00:00 1970 PST 117 | 407 | 00117_update7 | Sun Jan 18 00:00:00 1970 PST 118 | 8 | 00118 | Mon Jan 19 00:00:00 1970 PST 119 | 509 | 00119_update9 | Tue Jan 20 00:00:00 1970 PST 120 | 0 | 00120 | Wed Jan 21 00:00:00 1970 PST 121 | 1 | 00121 | Thu Jan 22 00:00:00 1970 PST 123 | 303 | 00123_update3 | Sat Jan 24 00:00:00 1970 PST 124 | 4 | 00124 | Sun Jan 25 00:00:00 1970 PST 126 | 6 | 00126 | Tue Jan 27 00:00:00 1970 PST 127 | 407 | 00127_update7 | Wed Jan 28 00:00:00 1970 PST 128 | 8 | 00128 | Thu Jan 29 00:00:00 1970 PST 129 | 509 | 00129_update9 | Fri Jan 30 00:00:00 1970 PST 130 | 0 | 00130 | Sat Jan 31 00:00:00 1970 PST 131 | 1 | 00131 | Sun Feb 01 00:00:00 1970 PST 133 | 303 | 00133_update3 | Tue Feb 03 00:00:00 1970 PST 134 | 4 | 00134 | Wed Feb 04 00:00:00 1970 PST 136 | 6 | 00136 | Fri Feb 06 00:00:00 1970 PST 137 | 407 | 00137_update7 | Sat Feb 07 00:00:00 1970 PST 138 | 8 | 00138 | Sun Feb 08 00:00:00 1970 PST 139 | 509 | 00139_update9 | Mon Feb 09 00:00:00 1970 PST 140 | 0 | 00140 | Tue Feb 10 00:00:00 1970 PST 141 | 1 | 00141 | Wed Feb 11 00:00:00 1970 PST 143 | 303 | 00143_update3 | Fri Feb 13 00:00:00 1970 PST 144 | 4 | 00144 | Sat Feb 14 00:00:00 1970 PST 146 | 6 | 00146 | Mon Feb 16 00:00:00 1970 PST 147 | 407 | 00147_update7 | Tue Feb 17 00:00:00 1970 PST 148 | 8 | 00148 | Wed Feb 18 00:00:00 1970 PST 149 | 509 | 00149_update9 | Thu Feb 19 00:00:00 1970 PST 150 | 0 | 00150 | Fri Feb 20 00:00:00 1970 PST 151 | 1 | 00151 | Sat Feb 21 00:00:00 1970 PST 153 | 303 | 00153_update3 | Mon Feb 23 00:00:00 1970 PST 154 | 4 | 00154 | Tue Feb 24 00:00:00 1970 PST 156 | 6 | 00156 | Thu Feb 26 00:00:00 1970 PST 157 | 407 | 00157_update7 | Fri Feb 27 00:00:00 1970 PST 158 | 8 | 00158 | Sat Feb 28 00:00:00 1970 PST 159 | 509 | 00159_update9 | Sun Mar 01 00:00:00 1970 PST 160 | 0 | 00160 | Mon Mar 02 00:00:00 1970 PST 161 | 1 | 00161 | Tue Mar 03 00:00:00 1970 PST 163 | 303 | 00163_update3 | Thu Mar 05 00:00:00 1970 PST 164 | 4 | 00164 | Fri Mar 06 00:00:00 1970 PST 166 | 6 | 00166 | Sun Mar 08 00:00:00 1970 PST 167 | 407 | 00167_update7 | Mon Mar 09 00:00:00 1970 PST 168 | 8 | 00168 | Tue Mar 10 00:00:00 1970 PST 169 | 509 | 00169_update9 | Wed Mar 11 00:00:00 1970 PST 170 | 0 | 00170 | Thu Mar 12 00:00:00 1970 PST 171 | 1 | 00171 | Fri Mar 13 00:00:00 1970 PST 173 | 303 | 00173_update3 | Sun Mar 15 00:00:00 1970 PST 174 | 4 | 00174 | Mon Mar 16 00:00:00 1970 PST 176 | 6 | 00176 | Wed Mar 18 00:00:00 1970 PST 177 | 407 | 00177_update7 | Thu Mar 19 00:00:00 1970 PST 178 | 8 | 00178 | Fri Mar 20 00:00:00 1970 PST 179 | 509 | 00179_update9 | Sat Mar 21 00:00:00 1970 PST 180 | 0 | 00180 | Sun Mar 22 00:00:00 1970 PST 181 | 1 | 00181 | Mon Mar 23 00:00:00 1970 PST 183 | 303 | 00183_update3 | Wed Mar 25 00:00:00 1970 PST 184 | 4 | 00184 | Thu Mar 26 00:00:00 1970 PST 186 | 6 | 00186 | Sat Mar 28 00:00:00 1970 PST 187 | 407 | 00187_update7 | Sun Mar 29 00:00:00 1970 PST 188 | 8 | 00188 | Mon Mar 30 00:00:00 1970 PST 189 | 509 | 00189_update9 | Tue Mar 31 00:00:00 1970 PST 190 | 0 | 00190 | Wed Apr 01 00:00:00 1970 PST 191 | 1 | 00191 | Thu Apr 02 00:00:00 1970 PST 193 | 303 | 00193_update3 | Sat Apr 04 00:00:00 1970 PST 194 | 4 | 00194 | Sun Apr 05 00:00:00 1970 PST 196 | 6 | 00196 | Tue Apr 07 00:00:00 1970 PST 197 | 407 | 00197_update7 | Wed Apr 08 00:00:00 1970 PST 198 | 8 | 00198 | Thu Apr 09 00:00:00 1970 PST 199 | 509 | 00199_update9 | Fri Apr 10 00:00:00 1970 PST 200 | 0 | 00200 | Thu Jan 01 00:00:00 1970 PST 201 | 1 | 00201 | Fri Jan 02 00:00:00 1970 PST 203 | 303 | 00203_update3 | Sun Jan 04 00:00:00 1970 PST 204 | 4 | 00204 | Mon Jan 05 00:00:00 1970 PST 206 | 6 | 00206 | Wed Jan 07 00:00:00 1970 PST 207 | 407 | 00207_update7 | Thu Jan 08 00:00:00 1970 PST 208 | 8 | 00208 | Fri Jan 09 00:00:00 1970 PST 209 | 509 | 00209_update9 | Sat Jan 10 00:00:00 1970 PST 210 | 0 | 00210 | Sun Jan 11 00:00:00 1970 PST 211 | 1 | 00211 | Mon Jan 12 00:00:00 1970 PST 213 | 303 | 00213_update3 | Wed Jan 14 00:00:00 1970 PST 214 | 4 | 00214 | Thu Jan 15 00:00:00 1970 PST 216 | 6 | 00216 | Sat Jan 17 00:00:00 1970 PST 217 | 407 | 00217_update7 | Sun Jan 18 00:00:00 1970 PST 218 | 8 | 00218 | Mon Jan 19 00:00:00 1970 PST 219 | 509 | 00219_update9 | Tue Jan 20 00:00:00 1970 PST 220 | 0 | 00220 | Wed Jan 21 00:00:00 1970 PST 221 | 1 | 00221 | Thu Jan 22 00:00:00 1970 PST 223 | 303 | 00223_update3 | Sat Jan 24 00:00:00 1970 PST 224 | 4 | 00224 | Sun Jan 25 00:00:00 1970 PST 226 | 6 | 00226 | Tue Jan 27 00:00:00 1970 PST 227 | 407 | 00227_update7 | Wed Jan 28 00:00:00 1970 PST 228 | 8 | 00228 | Thu Jan 29 00:00:00 1970 PST 229 | 509 | 00229_update9 | Fri Jan 30 00:00:00 1970 PST 230 | 0 | 00230 | Sat Jan 31 00:00:00 1970 PST 231 | 1 | 00231 | Sun Feb 01 00:00:00 1970 PST 233 | 303 | 00233_update3 | Tue Feb 03 00:00:00 1970 PST 234 | 4 | 00234 | Wed Feb 04 00:00:00 1970 PST 236 | 6 | 00236 | Fri Feb 06 00:00:00 1970 PST 237 | 407 | 00237_update7 | Sat Feb 07 00:00:00 1970 PST 238 | 8 | 00238 | Sun Feb 08 00:00:00 1970 PST 239 | 509 | 00239_update9 | Mon Feb 09 00:00:00 1970 PST 240 | 0 | 00240 | Tue Feb 10 00:00:00 1970 PST 241 | 1 | 00241 | Wed Feb 11 00:00:00 1970 PST 243 | 303 | 00243_update3 | Fri Feb 13 00:00:00 1970 PST 244 | 4 | 00244 | Sat Feb 14 00:00:00 1970 PST 246 | 6 | 00246 | Mon Feb 16 00:00:00 1970 PST 247 | 407 | 00247_update7 | Tue Feb 17 00:00:00 1970 PST 248 | 8 | 00248 | Wed Feb 18 00:00:00 1970 PST 249 | 509 | 00249_update9 | Thu Feb 19 00:00:00 1970 PST 250 | 0 | 00250 | Fri Feb 20 00:00:00 1970 PST 251 | 1 | 00251 | Sat Feb 21 00:00:00 1970 PST 253 | 303 | 00253_update3 | Mon Feb 23 00:00:00 1970 PST 254 | 4 | 00254 | Tue Feb 24 00:00:00 1970 PST 256 | 6 | 00256 | Thu Feb 26 00:00:00 1970 PST 257 | 407 | 00257_update7 | Fri Feb 27 00:00:00 1970 PST 258 | 8 | 00258 | Sat Feb 28 00:00:00 1970 PST 259 | 509 | 00259_update9 | Sun Mar 01 00:00:00 1970 PST 260 | 0 | 00260 | Mon Mar 02 00:00:00 1970 PST 261 | 1 | 00261 | Tue Mar 03 00:00:00 1970 PST 263 | 303 | 00263_update3 | Thu Mar 05 00:00:00 1970 PST 264 | 4 | 00264 | Fri Mar 06 00:00:00 1970 PST 266 | 6 | 00266 | Sun Mar 08 00:00:00 1970 PST 267 | 407 | 00267_update7 | Mon Mar 09 00:00:00 1970 PST 268 | 8 | 00268 | Tue Mar 10 00:00:00 1970 PST 269 | 509 | 00269_update9 | Wed Mar 11 00:00:00 1970 PST 270 | 0 | 00270 | Thu Mar 12 00:00:00 1970 PST 271 | 1 | 00271 | Fri Mar 13 00:00:00 1970 PST 273 | 303 | 00273_update3 | Sun Mar 15 00:00:00 1970 PST 274 | 4 | 00274 | Mon Mar 16 00:00:00 1970 PST 276 | 6 | 00276 | Wed Mar 18 00:00:00 1970 PST 277 | 407 | 00277_update7 | Thu Mar 19 00:00:00 1970 PST 278 | 8 | 00278 | Fri Mar 20 00:00:00 1970 PST 279 | 509 | 00279_update9 | Sat Mar 21 00:00:00 1970 PST 280 | 0 | 00280 | Sun Mar 22 00:00:00 1970 PST 281 | 1 | 00281 | Mon Mar 23 00:00:00 1970 PST 283 | 303 | 00283_update3 | Wed Mar 25 00:00:00 1970 PST 284 | 4 | 00284 | Thu Mar 26 00:00:00 1970 PST 286 | 6 | 00286 | Sat Mar 28 00:00:00 1970 PST 287 | 407 | 00287_update7 | Sun Mar 29 00:00:00 1970 PST 288 | 8 | 00288 | Mon Mar 30 00:00:00 1970 PST 289 | 509 | 00289_update9 | Tue Mar 31 00:00:00 1970 PST 290 | 0 | 00290 | Wed Apr 01 00:00:00 1970 PST 291 | 1 | 00291 | Thu Apr 02 00:00:00 1970 PST 293 | 303 | 00293_update3 | Sat Apr 04 00:00:00 1970 PST 294 | 4 | 00294 | Sun Apr 05 00:00:00 1970 PST 296 | 6 | 00296 | Tue Apr 07 00:00:00 1970 PST 297 | 407 | 00297_update7 | Wed Apr 08 00:00:00 1970 PST 298 | 8 | 00298 | Thu Apr 09 00:00:00 1970 PST 299 | 509 | 00299_update9 | Fri Apr 10 00:00:00 1970 PST 300 | 0 | 00300 | Thu Jan 01 00:00:00 1970 PST 301 | 1 | 00301 | Fri Jan 02 00:00:00 1970 PST 303 | 303 | 00303_update3 | Sun Jan 04 00:00:00 1970 PST 304 | 4 | 00304 | Mon Jan 05 00:00:00 1970 PST 306 | 6 | 00306 | Wed Jan 07 00:00:00 1970 PST 307 | 407 | 00307_update7 | Thu Jan 08 00:00:00 1970 PST 308 | 8 | 00308 | Fri Jan 09 00:00:00 1970 PST 309 | 509 | 00309_update9 | Sat Jan 10 00:00:00 1970 PST 310 | 0 | 00310 | Sun Jan 11 00:00:00 1970 PST 311 | 1 | 00311 | Mon Jan 12 00:00:00 1970 PST 313 | 303 | 00313_update3 | Wed Jan 14 00:00:00 1970 PST 314 | 4 | 00314 | Thu Jan 15 00:00:00 1970 PST 316 | 6 | 00316 | Sat Jan 17 00:00:00 1970 PST 317 | 407 | 00317_update7 | Sun Jan 18 00:00:00 1970 PST 318 | 8 | 00318 | Mon Jan 19 00:00:00 1970 PST 319 | 509 | 00319_update9 | Tue Jan 20 00:00:00 1970 PST 320 | 0 | 00320 | Wed Jan 21 00:00:00 1970 PST 321 | 1 | 00321 | Thu Jan 22 00:00:00 1970 PST 323 | 303 | 00323_update3 | Sat Jan 24 00:00:00 1970 PST 324 | 4 | 00324 | Sun Jan 25 00:00:00 1970 PST 326 | 6 | 00326 | Tue Jan 27 00:00:00 1970 PST 327 | 407 | 00327_update7 | Wed Jan 28 00:00:00 1970 PST 328 | 8 | 00328 | Thu Jan 29 00:00:00 1970 PST 329 | 509 | 00329_update9 | Fri Jan 30 00:00:00 1970 PST 330 | 0 | 00330 | Sat Jan 31 00:00:00 1970 PST 331 | 1 | 00331 | Sun Feb 01 00:00:00 1970 PST 333 | 303 | 00333_update3 | Tue Feb 03 00:00:00 1970 PST 334 | 4 | 00334 | Wed Feb 04 00:00:00 1970 PST 336 | 6 | 00336 | Fri Feb 06 00:00:00 1970 PST 337 | 407 | 00337_update7 | Sat Feb 07 00:00:00 1970 PST 338 | 8 | 00338 | Sun Feb 08 00:00:00 1970 PST 339 | 509 | 00339_update9 | Mon Feb 09 00:00:00 1970 PST 340 | 0 | 00340 | Tue Feb 10 00:00:00 1970 PST 341 | 1 | 00341 | Wed Feb 11 00:00:00 1970 PST 343 | 303 | 00343_update3 | Fri Feb 13 00:00:00 1970 PST 344 | 4 | 00344 | Sat Feb 14 00:00:00 1970 PST 346 | 6 | 00346 | Mon Feb 16 00:00:00 1970 PST 347 | 407 | 00347_update7 | Tue Feb 17 00:00:00 1970 PST 348 | 8 | 00348 | Wed Feb 18 00:00:00 1970 PST 349 | 509 | 00349_update9 | Thu Feb 19 00:00:00 1970 PST 350 | 0 | 00350 | Fri Feb 20 00:00:00 1970 PST 351 | 1 | 00351 | Sat Feb 21 00:00:00 1970 PST 353 | 303 | 00353_update3 | Mon Feb 23 00:00:00 1970 PST 354 | 4 | 00354 | Tue Feb 24 00:00:00 1970 PST 356 | 6 | 00356 | Thu Feb 26 00:00:00 1970 PST 357 | 407 | 00357_update7 | Fri Feb 27 00:00:00 1970 PST 358 | 8 | 00358 | Sat Feb 28 00:00:00 1970 PST 359 | 509 | 00359_update9 | Sun Mar 01 00:00:00 1970 PST 360 | 0 | 00360 | Mon Mar 02 00:00:00 1970 PST 361 | 1 | 00361 | Tue Mar 03 00:00:00 1970 PST 363 | 303 | 00363_update3 | Thu Mar 05 00:00:00 1970 PST 364 | 4 | 00364 | Fri Mar 06 00:00:00 1970 PST 366 | 6 | 00366 | Sun Mar 08 00:00:00 1970 PST 367 | 407 | 00367_update7 | Mon Mar 09 00:00:00 1970 PST 368 | 8 | 00368 | Tue Mar 10 00:00:00 1970 PST 369 | 509 | 00369_update9 | Wed Mar 11 00:00:00 1970 PST 370 | 0 | 00370 | Thu Mar 12 00:00:00 1970 PST 371 | 1 | 00371 | Fri Mar 13 00:00:00 1970 PST 373 | 303 | 00373_update3 | Sun Mar 15 00:00:00 1970 PST 374 | 4 | 00374 | Mon Mar 16 00:00:00 1970 PST 376 | 6 | 00376 | Wed Mar 18 00:00:00 1970 PST 377 | 407 | 00377_update7 | Thu Mar 19 00:00:00 1970 PST 378 | 8 | 00378 | Fri Mar 20 00:00:00 1970 PST 379 | 509 | 00379_update9 | Sat Mar 21 00:00:00 1970 PST 380 | 0 | 00380 | Sun Mar 22 00:00:00 1970 PST 381 | 1 | 00381 | Mon Mar 23 00:00:00 1970 PST 383 | 303 | 00383_update3 | Wed Mar 25 00:00:00 1970 PST 384 | 4 | 00384 | Thu Mar 26 00:00:00 1970 PST 386 | 6 | 00386 | Sat Mar 28 00:00:00 1970 PST 387 | 407 | 00387_update7 | Sun Mar 29 00:00:00 1970 PST 388 | 8 | 00388 | Mon Mar 30 00:00:00 1970 PST 389 | 509 | 00389_update9 | Tue Mar 31 00:00:00 1970 PST 390 | 0 | 00390 | Wed Apr 01 00:00:00 1970 PST 391 | 1 | 00391 | Thu Apr 02 00:00:00 1970 PST 393 | 303 | 00393_update3 | Sat Apr 04 00:00:00 1970 PST 394 | 4 | 00394 | Sun Apr 05 00:00:00 1970 PST 396 | 6 | 00396 | Tue Apr 07 00:00:00 1970 PST 397 | 407 | 00397_update7 | Wed Apr 08 00:00:00 1970 PST 398 | 8 | 00398 | Thu Apr 09 00:00:00 1970 PST 399 | 509 | 00399_update9 | Fri Apr 10 00:00:00 1970 PST 400 | 0 | 00400 | Thu Jan 01 00:00:00 1970 PST 401 | 1 | 00401 | Fri Jan 02 00:00:00 1970 PST 403 | 303 | 00403_update3 | Sun Jan 04 00:00:00 1970 PST 404 | 4 | 00404 | Mon Jan 05 00:00:00 1970 PST 406 | 6 | 00406 | Wed Jan 07 00:00:00 1970 PST 407 | 407 | 00407_update7 | Thu Jan 08 00:00:00 1970 PST 408 | 8 | 00408 | Fri Jan 09 00:00:00 1970 PST 409 | 509 | 00409_update9 | Sat Jan 10 00:00:00 1970 PST 410 | 0 | 00410 | Sun Jan 11 00:00:00 1970 PST 411 | 1 | 00411 | Mon Jan 12 00:00:00 1970 PST 413 | 303 | 00413_update3 | Wed Jan 14 00:00:00 1970 PST 414 | 4 | 00414 | Thu Jan 15 00:00:00 1970 PST 416 | 6 | 00416 | Sat Jan 17 00:00:00 1970 PST 417 | 407 | 00417_update7 | Sun Jan 18 00:00:00 1970 PST 418 | 8 | 00418 | Mon Jan 19 00:00:00 1970 PST 419 | 509 | 00419_update9 | Tue Jan 20 00:00:00 1970 PST 420 | 0 | 00420 | Wed Jan 21 00:00:00 1970 PST 421 | 1 | 00421 | Thu Jan 22 00:00:00 1970 PST 423 | 303 | 00423_update3 | Sat Jan 24 00:00:00 1970 PST 424 | 4 | 00424 | Sun Jan 25 00:00:00 1970 PST 426 | 6 | 00426 | Tue Jan 27 00:00:00 1970 PST 427 | 407 | 00427_update7 | Wed Jan 28 00:00:00 1970 PST 428 | 8 | 00428 | Thu Jan 29 00:00:00 1970 PST 429 | 509 | 00429_update9 | Fri Jan 30 00:00:00 1970 PST 430 | 0 | 00430 | Sat Jan 31 00:00:00 1970 PST 431 | 1 | 00431 | Sun Feb 01 00:00:00 1970 PST 433 | 303 | 00433_update3 | Tue Feb 03 00:00:00 1970 PST 434 | 4 | 00434 | Wed Feb 04 00:00:00 1970 PST 436 | 6 | 00436 | Fri Feb 06 00:00:00 1970 PST 437 | 407 | 00437_update7 | Sat Feb 07 00:00:00 1970 PST 438 | 8 | 00438 | Sun Feb 08 00:00:00 1970 PST 439 | 509 | 00439_update9 | Mon Feb 09 00:00:00 1970 PST 440 | 0 | 00440 | Tue Feb 10 00:00:00 1970 PST 441 | 1 | 00441 | Wed Feb 11 00:00:00 1970 PST 443 | 303 | 00443_update3 | Fri Feb 13 00:00:00 1970 PST 444 | 4 | 00444 | Sat Feb 14 00:00:00 1970 PST 446 | 6 | 00446 | Mon Feb 16 00:00:00 1970 PST 447 | 407 | 00447_update7 | Tue Feb 17 00:00:00 1970 PST 448 | 8 | 00448 | Wed Feb 18 00:00:00 1970 PST 449 | 509 | 00449_update9 | Thu Feb 19 00:00:00 1970 PST 450 | 0 | 00450 | Fri Feb 20 00:00:00 1970 PST 451 | 1 | 00451 | Sat Feb 21 00:00:00 1970 PST 453 | 303 | 00453_update3 | Mon Feb 23 00:00:00 1970 PST 454 | 4 | 00454 | Tue Feb 24 00:00:00 1970 PST 456 | 6 | 00456 | Thu Feb 26 00:00:00 1970 PST 457 | 407 | 00457_update7 | Fri Feb 27 00:00:00 1970 PST 458 | 8 | 00458 | Sat Feb 28 00:00:00 1970 PST 459 | 509 | 00459_update9 | Sun Mar 01 00:00:00 1970 PST 460 | 0 | 00460 | Mon Mar 02 00:00:00 1970 PST 461 | 1 | 00461 | Tue Mar 03 00:00:00 1970 PST 463 | 303 | 00463_update3 | Thu Mar 05 00:00:00 1970 PST 464 | 4 | 00464 | Fri Mar 06 00:00:00 1970 PST 466 | 6 | 00466 | Sun Mar 08 00:00:00 1970 PST 467 | 407 | 00467_update7 | Mon Mar 09 00:00:00 1970 PST 468 | 8 | 00468 | Tue Mar 10 00:00:00 1970 PST 469 | 509 | 00469_update9 | Wed Mar 11 00:00:00 1970 PST 470 | 0 | 00470 | Thu Mar 12 00:00:00 1970 PST 471 | 1 | 00471 | Fri Mar 13 00:00:00 1970 PST 473 | 303 | 00473_update3 | Sun Mar 15 00:00:00 1970 PST 474 | 4 | 00474 | Mon Mar 16 00:00:00 1970 PST 476 | 6 | 00476 | Wed Mar 18 00:00:00 1970 PST 477 | 407 | 00477_update7 | Thu Mar 19 00:00:00 1970 PST 478 | 8 | 00478 | Fri Mar 20 00:00:00 1970 PST 479 | 509 | 00479_update9 | Sat Mar 21 00:00:00 1970 PST 480 | 0 | 00480 | Sun Mar 22 00:00:00 1970 PST 481 | 1 | 00481 | Mon Mar 23 00:00:00 1970 PST 483 | 303 | 00483_update3 | Wed Mar 25 00:00:00 1970 PST 484 | 4 | 00484 | Thu Mar 26 00:00:00 1970 PST 486 | 6 | 00486 | Sat Mar 28 00:00:00 1970 PST 487 | 407 | 00487_update7 | Sun Mar 29 00:00:00 1970 PST 488 | 8 | 00488 | Mon Mar 30 00:00:00 1970 PST 489 | 509 | 00489_update9 | Tue Mar 31 00:00:00 1970 PST 490 | 0 | 00490 | Wed Apr 01 00:00:00 1970 PST 491 | 1 | 00491 | Thu Apr 02 00:00:00 1970 PST 493 | 303 | 00493_update3 | Sat Apr 04 00:00:00 1970 PST 494 | 4 | 00494 | Sun Apr 05 00:00:00 1970 PST 496 | 6 | 00496 | Tue Apr 07 00:00:00 1970 PST 497 | 407 | 00497_update7 | Wed Apr 08 00:00:00 1970 PST 498 | 8 | 00498 | Thu Apr 09 00:00:00 1970 PST 499 | 509 | 00499_update9 | Fri Apr 10 00:00:00 1970 PST 500 | 0 | 00500 | Thu Jan 01 00:00:00 1970 PST 501 | 1 | 00501 | Fri Jan 02 00:00:00 1970 PST 503 | 303 | 00503_update3 | Sun Jan 04 00:00:00 1970 PST 504 | 4 | 00504 | Mon Jan 05 00:00:00 1970 PST 506 | 6 | 00506 | Wed Jan 07 00:00:00 1970 PST 507 | 407 | 00507_update7 | Thu Jan 08 00:00:00 1970 PST 508 | 8 | 00508 | Fri Jan 09 00:00:00 1970 PST 509 | 509 | 00509_update9 | Sat Jan 10 00:00:00 1970 PST 510 | 0 | 00510 | Sun Jan 11 00:00:00 1970 PST 511 | 1 | 00511 | Mon Jan 12 00:00:00 1970 PST 513 | 303 | 00513_update3 | Wed Jan 14 00:00:00 1970 PST 514 | 4 | 00514 | Thu Jan 15 00:00:00 1970 PST 516 | 6 | 00516 | Sat Jan 17 00:00:00 1970 PST 517 | 407 | 00517_update7 | Sun Jan 18 00:00:00 1970 PST 518 | 8 | 00518 | Mon Jan 19 00:00:00 1970 PST 519 | 509 | 00519_update9 | Tue Jan 20 00:00:00 1970 PST 520 | 0 | 00520 | Wed Jan 21 00:00:00 1970 PST 521 | 1 | 00521 | Thu Jan 22 00:00:00 1970 PST 523 | 303 | 00523_update3 | Sat Jan 24 00:00:00 1970 PST 524 | 4 | 00524 | Sun Jan 25 00:00:00 1970 PST 526 | 6 | 00526 | Tue Jan 27 00:00:00 1970 PST 527 | 407 | 00527_update7 | Wed Jan 28 00:00:00 1970 PST 528 | 8 | 00528 | Thu Jan 29 00:00:00 1970 PST 529 | 509 | 00529_update9 | Fri Jan 30 00:00:00 1970 PST 530 | 0 | 00530 | Sat Jan 31 00:00:00 1970 PST 531 | 1 | 00531 | Sun Feb 01 00:00:00 1970 PST 533 | 303 | 00533_update3 | Tue Feb 03 00:00:00 1970 PST 534 | 4 | 00534 | Wed Feb 04 00:00:00 1970 PST 536 | 6 | 00536 | Fri Feb 06 00:00:00 1970 PST 537 | 407 | 00537_update7 | Sat Feb 07 00:00:00 1970 PST 538 | 8 | 00538 | Sun Feb 08 00:00:00 1970 PST 539 | 509 | 00539_update9 | Mon Feb 09 00:00:00 1970 PST 540 | 0 | 00540 | Tue Feb 10 00:00:00 1970 PST 541 | 1 | 00541 | Wed Feb 11 00:00:00 1970 PST 543 | 303 | 00543_update3 | Fri Feb 13 00:00:00 1970 PST 544 | 4 | 00544 | Sat Feb 14 00:00:00 1970 PST 546 | 6 | 00546 | Mon Feb 16 00:00:00 1970 PST 547 | 407 | 00547_update7 | Tue Feb 17 00:00:00 1970 PST 548 | 8 | 00548 | Wed Feb 18 00:00:00 1970 PST 549 | 509 | 00549_update9 | Thu Feb 19 00:00:00 1970 PST 550 | 0 | 00550 | Fri Feb 20 00:00:00 1970 PST 551 | 1 | 00551 | Sat Feb 21 00:00:00 1970 PST 553 | 303 | 00553_update3 | Mon Feb 23 00:00:00 1970 PST 554 | 4 | 00554 | Tue Feb 24 00:00:00 1970 PST 556 | 6 | 00556 | Thu Feb 26 00:00:00 1970 PST 557 | 407 | 00557_update7 | Fri Feb 27 00:00:00 1970 PST 558 | 8 | 00558 | Sat Feb 28 00:00:00 1970 PST 559 | 509 | 00559_update9 | Sun Mar 01 00:00:00 1970 PST 560 | 0 | 00560 | Mon Mar 02 00:00:00 1970 PST 561 | 1 | 00561 | Tue Mar 03 00:00:00 1970 PST 563 | 303 | 00563_update3 | Thu Mar 05 00:00:00 1970 PST 564 | 4 | 00564 | Fri Mar 06 00:00:00 1970 PST 566 | 6 | 00566 | Sun Mar 08 00:00:00 1970 PST 567 | 407 | 00567_update7 | Mon Mar 09 00:00:00 1970 PST 568 | 8 | 00568 | Tue Mar 10 00:00:00 1970 PST 569 | 509 | 00569_update9 | Wed Mar 11 00:00:00 1970 PST 570 | 0 | 00570 | Thu Mar 12 00:00:00 1970 PST 571 | 1 | 00571 | Fri Mar 13 00:00:00 1970 PST 573 | 303 | 00573_update3 | Sun Mar 15 00:00:00 1970 PST 574 | 4 | 00574 | Mon Mar 16 00:00:00 1970 PST 576 | 6 | 00576 | Wed Mar 18 00:00:00 1970 PST 577 | 407 | 00577_update7 | Thu Mar 19 00:00:00 1970 PST 578 | 8 | 00578 | Fri Mar 20 00:00:00 1970 PST 579 | 509 | 00579_update9 | Sat Mar 21 00:00:00 1970 PST 580 | 0 | 00580 | Sun Mar 22 00:00:00 1970 PST 581 | 1 | 00581 | Mon Mar 23 00:00:00 1970 PST 583 | 303 | 00583_update3 | Wed Mar 25 00:00:00 1970 PST 584 | 4 | 00584 | Thu Mar 26 00:00:00 1970 PST 586 | 6 | 00586 | Sat Mar 28 00:00:00 1970 PST 587 | 407 | 00587_update7 | Sun Mar 29 00:00:00 1970 PST 588 | 8 | 00588 | Mon Mar 30 00:00:00 1970 PST 589 | 509 | 00589_update9 | Tue Mar 31 00:00:00 1970 PST 590 | 0 | 00590 | Wed Apr 01 00:00:00 1970 PST 591 | 1 | 00591 | Thu Apr 02 00:00:00 1970 PST 593 | 303 | 00593_update3 | Sat Apr 04 00:00:00 1970 PST 594 | 4 | 00594 | Sun Apr 05 00:00:00 1970 PST 596 | 6 | 00596 | Tue Apr 07 00:00:00 1970 PST 597 | 407 | 00597_update7 | Wed Apr 08 00:00:00 1970 PST 598 | 8 | 00598 | Thu Apr 09 00:00:00 1970 PST 599 | 509 | 00599_update9 | Fri Apr 10 00:00:00 1970 PST 600 | 0 | 00600 | Thu Jan 01 00:00:00 1970 PST 601 | 1 | 00601 | Fri Jan 02 00:00:00 1970 PST 603 | 303 | 00603_update3 | Sun Jan 04 00:00:00 1970 PST 604 | 4 | 00604 | Mon Jan 05 00:00:00 1970 PST 606 | 6 | 00606 | Wed Jan 07 00:00:00 1970 PST 607 | 407 | 00607_update7 | Thu Jan 08 00:00:00 1970 PST 608 | 8 | 00608 | Fri Jan 09 00:00:00 1970 PST 609 | 509 | 00609_update9 | Sat Jan 10 00:00:00 1970 PST 610 | 0 | 00610 | Sun Jan 11 00:00:00 1970 PST 611 | 1 | 00611 | Mon Jan 12 00:00:00 1970 PST 613 | 303 | 00613_update3 | Wed Jan 14 00:00:00 1970 PST 614 | 4 | 00614 | Thu Jan 15 00:00:00 1970 PST 616 | 6 | 00616 | Sat Jan 17 00:00:00 1970 PST 617 | 407 | 00617_update7 | Sun Jan 18 00:00:00 1970 PST 618 | 8 | 00618 | Mon Jan 19 00:00:00 1970 PST 619 | 509 | 00619_update9 | Tue Jan 20 00:00:00 1970 PST 620 | 0 | 00620 | Wed Jan 21 00:00:00 1970 PST 621 | 1 | 00621 | Thu Jan 22 00:00:00 1970 PST 623 | 303 | 00623_update3 | Sat Jan 24 00:00:00 1970 PST 624 | 4 | 00624 | Sun Jan 25 00:00:00 1970 PST 626 | 6 | 00626 | Tue Jan 27 00:00:00 1970 PST 627 | 407 | 00627_update7 | Wed Jan 28 00:00:00 1970 PST 628 | 8 | 00628 | Thu Jan 29 00:00:00 1970 PST 629 | 509 | 00629_update9 | Fri Jan 30 00:00:00 1970 PST 630 | 0 | 00630 | Sat Jan 31 00:00:00 1970 PST 631 | 1 | 00631 | Sun Feb 01 00:00:00 1970 PST 633 | 303 | 00633_update3 | Tue Feb 03 00:00:00 1970 PST 634 | 4 | 00634 | Wed Feb 04 00:00:00 1970 PST 636 | 6 | 00636 | Fri Feb 06 00:00:00 1970 PST 637 | 407 | 00637_update7 | Sat Feb 07 00:00:00 1970 PST 638 | 8 | 00638 | Sun Feb 08 00:00:00 1970 PST 639 | 509 | 00639_update9 | Mon Feb 09 00:00:00 1970 PST 640 | 0 | 00640 | Tue Feb 10 00:00:00 1970 PST 641 | 1 | 00641 | Wed Feb 11 00:00:00 1970 PST 643 | 303 | 00643_update3 | Fri Feb 13 00:00:00 1970 PST 644 | 4 | 00644 | Sat Feb 14 00:00:00 1970 PST 646 | 6 | 00646 | Mon Feb 16 00:00:00 1970 PST 647 | 407 | 00647_update7 | Tue Feb 17 00:00:00 1970 PST 648 | 8 | 00648 | Wed Feb 18 00:00:00 1970 PST 649 | 509 | 00649_update9 | Thu Feb 19 00:00:00 1970 PST 650 | 0 | 00650 | Fri Feb 20 00:00:00 1970 PST 651 | 1 | 00651 | Sat Feb 21 00:00:00 1970 PST 653 | 303 | 00653_update3 | Mon Feb 23 00:00:00 1970 PST 654 | 4 | 00654 | Tue Feb 24 00:00:00 1970 PST 656 | 6 | 00656 | Thu Feb 26 00:00:00 1970 PST 657 | 407 | 00657_update7 | Fri Feb 27 00:00:00 1970 PST 658 | 8 | 00658 | Sat Feb 28 00:00:00 1970 PST 659 | 509 | 00659_update9 | Sun Mar 01 00:00:00 1970 PST 660 | 0 | 00660 | Mon Mar 02 00:00:00 1970 PST 661 | 1 | 00661 | Tue Mar 03 00:00:00 1970 PST 663 | 303 | 00663_update3 | Thu Mar 05 00:00:00 1970 PST 664 | 4 | 00664 | Fri Mar 06 00:00:00 1970 PST 666 | 6 | 00666 | Sun Mar 08 00:00:00 1970 PST 667 | 407 | 00667_update7 | Mon Mar 09 00:00:00 1970 PST 668 | 8 | 00668 | Tue Mar 10 00:00:00 1970 PST 669 | 509 | 00669_update9 | Wed Mar 11 00:00:00 1970 PST 670 | 0 | 00670 | Thu Mar 12 00:00:00 1970 PST 671 | 1 | 00671 | Fri Mar 13 00:00:00 1970 PST 673 | 303 | 00673_update3 | Sun Mar 15 00:00:00 1970 PST 674 | 4 | 00674 | Mon Mar 16 00:00:00 1970 PST 676 | 6 | 00676 | Wed Mar 18 00:00:00 1970 PST 677 | 407 | 00677_update7 | Thu Mar 19 00:00:00 1970 PST 678 | 8 | 00678 | Fri Mar 20 00:00:00 1970 PST 679 | 509 | 00679_update9 | Sat Mar 21 00:00:00 1970 PST 680 | 0 | 00680 | Sun Mar 22 00:00:00 1970 PST 681 | 1 | 00681 | Mon Mar 23 00:00:00 1970 PST 683 | 303 | 00683_update3 | Wed Mar 25 00:00:00 1970 PST 684 | 4 | 00684 | Thu Mar 26 00:00:00 1970 PST 686 | 6 | 00686 | Sat Mar 28 00:00:00 1970 PST 687 | 407 | 00687_update7 | Sun Mar 29 00:00:00 1970 PST 688 | 8 | 00688 | Mon Mar 30 00:00:00 1970 PST 689 | 509 | 00689_update9 | Tue Mar 31 00:00:00 1970 PST 690 | 0 | 00690 | Wed Apr 01 00:00:00 1970 PST 691 | 1 | 00691 | Thu Apr 02 00:00:00 1970 PST 693 | 303 | 00693_update3 | Sat Apr 04 00:00:00 1970 PST 694 | 4 | 00694 | Sun Apr 05 00:00:00 1970 PST 696 | 6 | 00696 | Tue Apr 07 00:00:00 1970 PST 697 | 407 | 00697_update7 | Wed Apr 08 00:00:00 1970 PST 698 | 8 | 00698 | Thu Apr 09 00:00:00 1970 PST 699 | 509 | 00699_update9 | Fri Apr 10 00:00:00 1970 PST 700 | 0 | 00700 | Thu Jan 01 00:00:00 1970 PST 701 | 1 | 00701 | Fri Jan 02 00:00:00 1970 PST 703 | 303 | 00703_update3 | Sun Jan 04 00:00:00 1970 PST 704 | 4 | 00704 | Mon Jan 05 00:00:00 1970 PST 706 | 6 | 00706 | Wed Jan 07 00:00:00 1970 PST 707 | 407 | 00707_update7 | Thu Jan 08 00:00:00 1970 PST 708 | 8 | 00708 | Fri Jan 09 00:00:00 1970 PST 709 | 509 | 00709_update9 | Sat Jan 10 00:00:00 1970 PST 710 | 0 | 00710 | Sun Jan 11 00:00:00 1970 PST 711 | 1 | 00711 | Mon Jan 12 00:00:00 1970 PST 713 | 303 | 00713_update3 | Wed Jan 14 00:00:00 1970 PST 714 | 4 | 00714 | Thu Jan 15 00:00:00 1970 PST 716 | 6 | 00716 | Sat Jan 17 00:00:00 1970 PST 717 | 407 | 00717_update7 | Sun Jan 18 00:00:00 1970 PST 718 | 8 | 00718 | Mon Jan 19 00:00:00 1970 PST 719 | 509 | 00719_update9 | Tue Jan 20 00:00:00 1970 PST 720 | 0 | 00720 | Wed Jan 21 00:00:00 1970 PST 721 | 1 | 00721 | Thu Jan 22 00:00:00 1970 PST 723 | 303 | 00723_update3 | Sat Jan 24 00:00:00 1970 PST 724 | 4 | 00724 | Sun Jan 25 00:00:00 1970 PST 726 | 6 | 00726 | Tue Jan 27 00:00:00 1970 PST 727 | 407 | 00727_update7 | Wed Jan 28 00:00:00 1970 PST 728 | 8 | 00728 | Thu Jan 29 00:00:00 1970 PST 729 | 509 | 00729_update9 | Fri Jan 30 00:00:00 1970 PST 730 | 0 | 00730 | Sat Jan 31 00:00:00 1970 PST 731 | 1 | 00731 | Sun Feb 01 00:00:00 1970 PST 733 | 303 | 00733_update3 | Tue Feb 03 00:00:00 1970 PST 734 | 4 | 00734 | Wed Feb 04 00:00:00 1970 PST 736 | 6 | 00736 | Fri Feb 06 00:00:00 1970 PST 737 | 407 | 00737_update7 | Sat Feb 07 00:00:00 1970 PST 738 | 8 | 00738 | Sun Feb 08 00:00:00 1970 PST 739 | 509 | 00739_update9 | Mon Feb 09 00:00:00 1970 PST 740 | 0 | 00740 | Tue Feb 10 00:00:00 1970 PST 741 | 1 | 00741 | Wed Feb 11 00:00:00 1970 PST 743 | 303 | 00743_update3 | Fri Feb 13 00:00:00 1970 PST 744 | 4 | 00744 | Sat Feb 14 00:00:00 1970 PST 746 | 6 | 00746 | Mon Feb 16 00:00:00 1970 PST 747 | 407 | 00747_update7 | Tue Feb 17 00:00:00 1970 PST 748 | 8 | 00748 | Wed Feb 18 00:00:00 1970 PST 749 | 509 | 00749_update9 | Thu Feb 19 00:00:00 1970 PST 750 | 0 | 00750 | Fri Feb 20 00:00:00 1970 PST 751 | 1 | 00751 | Sat Feb 21 00:00:00 1970 PST 753 | 303 | 00753_update3 | Mon Feb 23 00:00:00 1970 PST 754 | 4 | 00754 | Tue Feb 24 00:00:00 1970 PST 756 | 6 | 00756 | Thu Feb 26 00:00:00 1970 PST 757 | 407 | 00757_update7 | Fri Feb 27 00:00:00 1970 PST 758 | 8 | 00758 | Sat Feb 28 00:00:00 1970 PST 759 | 509 | 00759_update9 | Sun Mar 01 00:00:00 1970 PST 760 | 0 | 00760 | Mon Mar 02 00:00:00 1970 PST 761 | 1 | 00761 | Tue Mar 03 00:00:00 1970 PST 763 | 303 | 00763_update3 | Thu Mar 05 00:00:00 1970 PST 764 | 4 | 00764 | Fri Mar 06 00:00:00 1970 PST 766 | 6 | 00766 | Sun Mar 08 00:00:00 1970 PST 767 | 407 | 00767_update7 | Mon Mar 09 00:00:00 1970 PST 768 | 8 | 00768 | Tue Mar 10 00:00:00 1970 PST 769 | 509 | 00769_update9 | Wed Mar 11 00:00:00 1970 PST 770 | 0 | 00770 | Thu Mar 12 00:00:00 1970 PST 771 | 1 | 00771 | Fri Mar 13 00:00:00 1970 PST 773 | 303 | 00773_update3 | Sun Mar 15 00:00:00 1970 PST 774 | 4 | 00774 | Mon Mar 16 00:00:00 1970 PST 776 | 6 | 00776 | Wed Mar 18 00:00:00 1970 PST 777 | 407 | 00777_update7 | Thu Mar 19 00:00:00 1970 PST 778 | 8 | 00778 | Fri Mar 20 00:00:00 1970 PST 779 | 509 | 00779_update9 | Sat Mar 21 00:00:00 1970 PST 780 | 0 | 00780 | Sun Mar 22 00:00:00 1970 PST 781 | 1 | 00781 | Mon Mar 23 00:00:00 1970 PST 783 | 303 | 00783_update3 | Wed Mar 25 00:00:00 1970 PST 784 | 4 | 00784 | Thu Mar 26 00:00:00 1970 PST 786 | 6 | 00786 | Sat Mar 28 00:00:00 1970 PST 787 | 407 | 00787_update7 | Sun Mar 29 00:00:00 1970 PST 788 | 8 | 00788 | Mon Mar 30 00:00:00 1970 PST 789 | 509 | 00789_update9 | Tue Mar 31 00:00:00 1970 PST 790 | 0 | 00790 | Wed Apr 01 00:00:00 1970 PST 791 | 1 | 00791 | Thu Apr 02 00:00:00 1970 PST 793 | 303 | 00793_update3 | Sat Apr 04 00:00:00 1970 PST 794 | 4 | 00794 | Sun Apr 05 00:00:00 1970 PST 796 | 6 | 00796 | Tue Apr 07 00:00:00 1970 PST 797 | 407 | 00797_update7 | Wed Apr 08 00:00:00 1970 PST 798 | 8 | 00798 | Thu Apr 09 00:00:00 1970 PST 799 | 509 | 00799_update9 | Fri Apr 10 00:00:00 1970 PST 800 | 0 | 00800 | Thu Jan 01 00:00:00 1970 PST 801 | 1 | 00801 | Fri Jan 02 00:00:00 1970 PST 803 | 303 | 00803_update3 | Sun Jan 04 00:00:00 1970 PST 804 | 4 | 00804 | Mon Jan 05 00:00:00 1970 PST 806 | 6 | 00806 | Wed Jan 07 00:00:00 1970 PST 807 | 407 | 00807_update7 | Thu Jan 08 00:00:00 1970 PST 808 | 8 | 00808 | Fri Jan 09 00:00:00 1970 PST 809 | 509 | 00809_update9 | Sat Jan 10 00:00:00 1970 PST 810 | 0 | 00810 | Sun Jan 11 00:00:00 1970 PST 811 | 1 | 00811 | Mon Jan 12 00:00:00 1970 PST 813 | 303 | 00813_update3 | Wed Jan 14 00:00:00 1970 PST 814 | 4 | 00814 | Thu Jan 15 00:00:00 1970 PST 816 | 6 | 00816 | Sat Jan 17 00:00:00 1970 PST 817 | 407 | 00817_update7 | Sun Jan 18 00:00:00 1970 PST 818 | 8 | 00818 | Mon Jan 19 00:00:00 1970 PST 819 | 509 | 00819_update9 | Tue Jan 20 00:00:00 1970 PST 820 | 0 | 00820 | Wed Jan 21 00:00:00 1970 PST 821 | 1 | 00821 | Thu Jan 22 00:00:00 1970 PST 823 | 303 | 00823_update3 | Sat Jan 24 00:00:00 1970 PST 824 | 4 | 00824 | Sun Jan 25 00:00:00 1970 PST 826 | 6 | 00826 | Tue Jan 27 00:00:00 1970 PST 827 | 407 | 00827_update7 | Wed Jan 28 00:00:00 1970 PST 828 | 8 | 00828 | Thu Jan 29 00:00:00 1970 PST 829 | 509 | 00829_update9 | Fri Jan 30 00:00:00 1970 PST 830 | 0 | 00830 | Sat Jan 31 00:00:00 1970 PST 831 | 1 | 00831 | Sun Feb 01 00:00:00 1970 PST 833 | 303 | 00833_update3 | Tue Feb 03 00:00:00 1970 PST 834 | 4 | 00834 | Wed Feb 04 00:00:00 1970 PST 836 | 6 | 00836 | Fri Feb 06 00:00:00 1970 PST 837 | 407 | 00837_update7 | Sat Feb 07 00:00:00 1970 PST 838 | 8 | 00838 | Sun Feb 08 00:00:00 1970 PST 839 | 509 | 00839_update9 | Mon Feb 09 00:00:00 1970 PST 840 | 0 | 00840 | Tue Feb 10 00:00:00 1970 PST 841 | 1 | 00841 | Wed Feb 11 00:00:00 1970 PST 843 | 303 | 00843_update3 | Fri Feb 13 00:00:00 1970 PST 844 | 4 | 00844 | Sat Feb 14 00:00:00 1970 PST 846 | 6 | 00846 | Mon Feb 16 00:00:00 1970 PST 847 | 407 | 00847_update7 | Tue Feb 17 00:00:00 1970 PST 848 | 8 | 00848 | Wed Feb 18 00:00:00 1970 PST 849 | 509 | 00849_update9 | Thu Feb 19 00:00:00 1970 PST 850 | 0 | 00850 | Fri Feb 20 00:00:00 1970 PST 851 | 1 | 00851 | Sat Feb 21 00:00:00 1970 PST 853 | 303 | 00853_update3 | Mon Feb 23 00:00:00 1970 PST 854 | 4 | 00854 | Tue Feb 24 00:00:00 1970 PST 856 | 6 | 00856 | Thu Feb 26 00:00:00 1970 PST 857 | 407 | 00857_update7 | Fri Feb 27 00:00:00 1970 PST 858 | 8 | 00858 | Sat Feb 28 00:00:00 1970 PST 859 | 509 | 00859_update9 | Sun Mar 01 00:00:00 1970 PST 860 | 0 | 00860 | Mon Mar 02 00:00:00 1970 PST 861 | 1 | 00861 | Tue Mar 03 00:00:00 1970 PST 863 | 303 | 00863_update3 | Thu Mar 05 00:00:00 1970 PST 864 | 4 | 00864 | Fri Mar 06 00:00:00 1970 PST 866 | 6 | 00866 | Sun Mar 08 00:00:00 1970 PST 867 | 407 | 00867_update7 | Mon Mar 09 00:00:00 1970 PST 868 | 8 | 00868 | Tue Mar 10 00:00:00 1970 PST 869 | 509 | 00869_update9 | Wed Mar 11 00:00:00 1970 PST 870 | 0 | 00870 | Thu Mar 12 00:00:00 1970 PST 871 | 1 | 00871 | Fri Mar 13 00:00:00 1970 PST 873 | 303 | 00873_update3 | Sun Mar 15 00:00:00 1970 PST 874 | 4 | 00874 | Mon Mar 16 00:00:00 1970 PST 876 | 6 | 00876 | Wed Mar 18 00:00:00 1970 PST 877 | 407 | 00877_update7 | Thu Mar 19 00:00:00 1970 PST 878 | 8 | 00878 | Fri Mar 20 00:00:00 1970 PST 879 | 509 | 00879_update9 | Sat Mar 21 00:00:00 1970 PST 880 | 0 | 00880 | Sun Mar 22 00:00:00 1970 PST 881 | 1 | 00881 | Mon Mar 23 00:00:00 1970 PST 883 | 303 | 00883_update3 | Wed Mar 25 00:00:00 1970 PST 884 | 4 | 00884 | Thu Mar 26 00:00:00 1970 PST 886 | 6 | 00886 | Sat Mar 28 00:00:00 1970 PST 887 | 407 | 00887_update7 | Sun Mar 29 00:00:00 1970 PST 888 | 8 | 00888 | Mon Mar 30 00:00:00 1970 PST 889 | 509 | 00889_update9 | Tue Mar 31 00:00:00 1970 PST 890 | 0 | 00890 | Wed Apr 01 00:00:00 1970 PST 891 | 1 | 00891 | Thu Apr 02 00:00:00 1970 PST 893 | 303 | 00893_update3 | Sat Apr 04 00:00:00 1970 PST 894 | 4 | 00894 | Sun Apr 05 00:00:00 1970 PST 896 | 6 | 00896 | Tue Apr 07 00:00:00 1970 PST 897 | 407 | 00897_update7 | Wed Apr 08 00:00:00 1970 PST 898 | 8 | 00898 | Thu Apr 09 00:00:00 1970 PST 899 | 509 | 00899_update9 | Fri Apr 10 00:00:00 1970 PST 900 | 0 | 00900 | Thu Jan 01 00:00:00 1970 PST 901 | 1 | 00901 | Fri Jan 02 00:00:00 1970 PST 903 | 303 | 00903_update3 | Sun Jan 04 00:00:00 1970 PST 904 | 4 | 00904 | Mon Jan 05 00:00:00 1970 PST 906 | 6 | 00906 | Wed Jan 07 00:00:00 1970 PST 907 | 407 | 00907_update7 | Thu Jan 08 00:00:00 1970 PST 908 | 8 | 00908 | Fri Jan 09 00:00:00 1970 PST 909 | 509 | 00909_update9 | Sat Jan 10 00:00:00 1970 PST 910 | 0 | 00910 | Sun Jan 11 00:00:00 1970 PST 911 | 1 | 00911 | Mon Jan 12 00:00:00 1970 PST 913 | 303 | 00913_update3 | Wed Jan 14 00:00:00 1970 PST 914 | 4 | 00914 | Thu Jan 15 00:00:00 1970 PST 916 | 6 | 00916 | Sat Jan 17 00:00:00 1970 PST 917 | 407 | 00917_update7 | Sun Jan 18 00:00:00 1970 PST 918 | 8 | 00918 | Mon Jan 19 00:00:00 1970 PST 919 | 509 | 00919_update9 | Tue Jan 20 00:00:00 1970 PST 920 | 0 | 00920 | Wed Jan 21 00:00:00 1970 PST 921 | 1 | 00921 | Thu Jan 22 00:00:00 1970 PST 923 | 303 | 00923_update3 | Sat Jan 24 00:00:00 1970 PST 924 | 4 | 00924 | Sun Jan 25 00:00:00 1970 PST 926 | 6 | 00926 | Tue Jan 27 00:00:00 1970 PST 927 | 407 | 00927_update7 | Wed Jan 28 00:00:00 1970 PST 928 | 8 | 00928 | Thu Jan 29 00:00:00 1970 PST 929 | 509 | 00929_update9 | Fri Jan 30 00:00:00 1970 PST 930 | 0 | 00930 | Sat Jan 31 00:00:00 1970 PST 931 | 1 | 00931 | Sun Feb 01 00:00:00 1970 PST 933 | 303 | 00933_update3 | Tue Feb 03 00:00:00 1970 PST 934 | 4 | 00934 | Wed Feb 04 00:00:00 1970 PST 936 | 6 | 00936 | Fri Feb 06 00:00:00 1970 PST 937 | 407 | 00937_update7 | Sat Feb 07 00:00:00 1970 PST 938 | 8 | 00938 | Sun Feb 08 00:00:00 1970 PST 939 | 509 | 00939_update9 | Mon Feb 09 00:00:00 1970 PST 940 | 0 | 00940 | Tue Feb 10 00:00:00 1970 PST 941 | 1 | 00941 | Wed Feb 11 00:00:00 1970 PST 943 | 303 | 00943_update3 | Fri Feb 13 00:00:00 1970 PST 944 | 4 | 00944 | Sat Feb 14 00:00:00 1970 PST 946 | 6 | 00946 | Mon Feb 16 00:00:00 1970 PST 947 | 407 | 00947_update7 | Tue Feb 17 00:00:00 1970 PST 948 | 8 | 00948 | Wed Feb 18 00:00:00 1970 PST 949 | 509 | 00949_update9 | Thu Feb 19 00:00:00 1970 PST 950 | 0 | 00950 | Fri Feb 20 00:00:00 1970 PST 951 | 1 | 00951 | Sat Feb 21 00:00:00 1970 PST 953 | 303 | 00953_update3 | Mon Feb 23 00:00:00 1970 PST 954 | 4 | 00954 | Tue Feb 24 00:00:00 1970 PST 956 | 6 | 00956 | Thu Feb 26 00:00:00 1970 PST 957 | 407 | 00957_update7 | Fri Feb 27 00:00:00 1970 PST 958 | 8 | 00958 | Sat Feb 28 00:00:00 1970 PST 959 | 509 | 00959_update9 | Sun Mar 01 00:00:00 1970 PST 960 | 0 | 00960 | Mon Mar 02 00:00:00 1970 PST 961 | 1 | 00961 | Tue Mar 03 00:00:00 1970 PST 963 | 303 | 00963_update3 | Thu Mar 05 00:00:00 1970 PST 964 | 4 | 00964 | Fri Mar 06 00:00:00 1970 PST 966 | 6 | 00966 | Sun Mar 08 00:00:00 1970 PST 967 | 407 | 00967_update7 | Mon Mar 09 00:00:00 1970 PST 968 | 8 | 00968 | Tue Mar 10 00:00:00 1970 PST 969 | 509 | 00969_update9 | Wed Mar 11 00:00:00 1970 PST 970 | 0 | 00970 | Thu Mar 12 00:00:00 1970 PST 971 | 1 | 00971 | Fri Mar 13 00:00:00 1970 PST 973 | 303 | 00973_update3 | Sun Mar 15 00:00:00 1970 PST 974 | 4 | 00974 | Mon Mar 16 00:00:00 1970 PST 976 | 6 | 00976 | Wed Mar 18 00:00:00 1970 PST 977 | 407 | 00977_update7 | Thu Mar 19 00:00:00 1970 PST 978 | 8 | 00978 | Fri Mar 20 00:00:00 1970 PST 979 | 509 | 00979_update9 | Sat Mar 21 00:00:00 1970 PST 980 | 0 | 00980 | Sun Mar 22 00:00:00 1970 PST 981 | 1 | 00981 | Mon Mar 23 00:00:00 1970 PST 983 | 303 | 00983_update3 | Wed Mar 25 00:00:00 1970 PST 984 | 4 | 00984 | Thu Mar 26 00:00:00 1970 PST 986 | 6 | 00986 | Sat Mar 28 00:00:00 1970 PST 987 | 407 | 00987_update7 | Sun Mar 29 00:00:00 1970 PST 988 | 8 | 00988 | Mon Mar 30 00:00:00 1970 PST 989 | 509 | 00989_update9 | Tue Mar 31 00:00:00 1970 PST 990 | 0 | 00990 | Wed Apr 01 00:00:00 1970 PST 991 | 1 | 00991 | Thu Apr 02 00:00:00 1970 PST 993 | 303 | 00993_update3 | Sat Apr 04 00:00:00 1970 PST 994 | 4 | 00994 | Sun Apr 05 00:00:00 1970 PST 996 | 6 | 00996 | Tue Apr 07 00:00:00 1970 PST 997 | 407 | 00997_update7 | Wed Apr 08 00:00:00 1970 PST 998 | 8 | 00998 | Thu Apr 09 00:00:00 1970 PST 999 | 509 | 00999_update9 | Fri Apr 10 00:00:00 1970 PST 1000 | 0 | 01000 | Thu Jan 01 00:00:00 1970 PST 1001 | 101 | 0000100001 | 1003 | 403 | 0000300003_update3 | 1004 | 104 | 0000400004 | 1006 | 106 | 0000600006 | 1007 | 507 | 0000700007_update7 | 1008 | 108 | 0000800008 | 1009 | 609 | 0000900009_update9 | 1010 | 100 | 0001000010 | 1011 | 101 | 0001100011 | 1013 | 403 | 0001300013_update3 | 1014 | 104 | 0001400014 | 1016 | 106 | 0001600016 | 1017 | 507 | 0001700017_update7 | 1018 | 108 | 0001800018 | 1019 | 609 | 0001900019_update9 | 1020 | 100 | 0002000020 | 1101 | 201 | aaa | 1103 | 503 | ccc_update3 | 1104 | 204 | ddd | (819 rows) --nspt openGauss not have tableoid, also not support select system columns. EXPLAIN (verbose, costs off) INSERT INTO ft2 (c1,c2,c3) VALUES (1200,999,'foo') RETURNING tableoid::regclass; ERROR: column "tableoid" does not exist LINE 2: ... ft2 (c1,c2,c3) VALUES (1200,999,'foo') RETURNING tableoid::... ^ CONTEXT: referenced column: tableoid INSERT INTO ft2 (c1,c2,c3) VALUES (1200,999,'foo') RETURNING tableoid::regclass; ERROR: column "tableoid" does not exist LINE 1: ... ft2 (c1,c2,c3) VALUES (1200,999,'foo') RETURNING tableoid::... ^ CONTEXT: referenced column: tableoid EXPLAIN (verbose, costs off) UPDATE ft2 SET c3 = 'bar' WHERE c1 = 1200 RETURNING tableoid::regclass; -- can be pushed down ERROR: column "tableoid" does not exist LINE 2: ...DATE ft2 SET c3 = 'bar' WHERE c1 = 1200 RETURNING tableoid::... ^ CONTEXT: referenced column: tableoid UPDATE ft2 SET c3 = 'bar' WHERE c1 = 1200 RETURNING tableoid::regclass; ERROR: column "tableoid" does not exist LINE 1: ...DATE ft2 SET c3 = 'bar' WHERE c1 = 1200 RETURNING tableoid::... ^ CONTEXT: referenced column: tableoid EXPLAIN (verbose, costs off) DELETE FROM ft2 WHERE c1 = 1200 RETURNING tableoid::regclass; -- can be pushed down ERROR: column "tableoid" does not exist LINE 2: DELETE FROM ft2 WHERE c1 = 1200 RETURNING tableoid::regclass... ^ CONTEXT: referenced column: tableoid DELETE FROM ft2 WHERE c1 = 1200 RETURNING tableoid::regclass; ERROR: column "tableoid" does not exist LINE 1: DELETE FROM ft2 WHERE c1 = 1200 RETURNING tableoid::regclass... ^ CONTEXT: referenced column: tableoid -- Test UPDATE/DELETE with RETURNING on a three-table join INSERT INTO ft2 (c1,c2,c3) SELECT id, id - 1200, to_char(id, 'FM00000') FROM generate_series(1201, 1300) id; EXPLAIN (verbose, costs off) UPDATE ft2 SET c3 = 'foo' FROM ft4 INNER JOIN ft5 ON (ft4.c1 = ft5.c1) WHERE ft2.c1 > 1200 AND ft2.c2 = ft4.c1 RETURNING ft2, ft2.*, ft4, ft4.*; -- can be pushed down QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------------------------ Update on public.ft2 Output: ft2.*, ft2.c1, ft2.c2, ft2.c3, ft2.c4, ft2.c5, ft2.c6, ft2.c7, ft2.c8, ft4.*, ft4.c1, ft4.c2, ft4.c3 -> Nested Loop Output: ft2.c1, ft2.c2, NULL::integer, 'foo'::text, ft2.c4, ft2.c5, ft2.c6, ft2.c7, ft2.c8, ft2.ctid, ft2.tableoid, ft4.*, ft5.*, ft4.c1, ft4.c2, ft4.c3 Join Filter: (ft4.c1 = ft5.c1) -> Nested Loop Output: ft2.c1, ft2.c2, ft2.c4, ft2.c5, ft2.c6, ft2.c7, ft2.c8, ft2.ctid, ft2.tableoid, ft4.*, ft4.c1, ft4.c2, ft4.c3 Join Filter: (ft2.c2 = ft4.c1) -> Foreign Scan on public.ft2 Output: ft2.c1, ft2.c2, ft2.c4, ft2.c5, ft2.c6, ft2.c7, ft2.c8, ft2.ctid, ft2.tableoid Node ID: 1 Remote SQL: SELECT "C 1", c2, c4, c5, c6, c7, c8, ctid, tableoid FROM "S 1"."T 1" WHERE (("C 1" > 1200)) FOR UPDATE -> Foreign Scan on public.ft4 Output: ft4.*, ft4.c1, ft4.c2, ft4.c3 Node ID: 2 Remote SQL: SELECT c1, c2, c3 FROM "S 1"."T 3" -> Foreign Scan on public.ft5 Output: ft5.*, ft5.c1 Node ID: 3 Remote SQL: SELECT c1, c2, c3 FROM "S 1"."T 4" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c4, c5, c6, c7, c8, ctid, tableoid FROM "S 1"."T 1" WHERE (("C 1" > 1200)) FOR UPDATE LockRows Output: "C 1", c2, c4, c5, c6, c7, c8, ctid, tableoid, ctid, tableoid -> Partitioned Index Scan using t1_pkey on "S 1"."T 1" Output: "C 1", c2, c4, c5, c6, c7, c8, ctid, tableoid, ctid, tableoid Index Cond: ("T 1"."C 1" > 1200) Selected Partitions: 2 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c1, c2, c3 FROM "S 1"."T 3" Partition Iterator Output: c1, c2, c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" Output: c1, c2, c3 Selected Partitions: 1..2 Node 3: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c1, c2, c3 FROM "S 1"."T 4" Partition Iterator Output: c1, c2, c3 Iterations: 2, Sub Iterations: 4 -> Partitioned Seq Scan on "S 1"."T 4" Output: c1, c2, c3 Selected Partitions: 1..2 Selected Subpartitions: ALL (45 rows) UPDATE ft2 SET c3 = 'foo' FROM ft4 INNER JOIN ft5 ON (ft4.c1 = ft5.c1) WHERE ft2.c1 > 1200 AND ft2.c2 = ft4.c1 RETURNING ft2, ft2.*, ft4, ft4.*; ft2 | c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 | ft4 | c1 | c2 | c3 --------------------------------+------+----+-----+----+----+----+------------+----+----------------+----+----+-------- (1206,6,foo,,,,"ft2 ",) | 1206 | 6 | foo | | | | ft2 | | (6,7,AAA006) | 6 | 7 | AAA006 (1212,12,foo,,,,"ft2 ",) | 1212 | 12 | foo | | | | ft2 | | (12,13,AAA012) | 12 | 13 | AAA012 (1218,18,foo,,,,"ft2 ",) | 1218 | 18 | foo | | | | ft2 | | (18,19,AAA018) | 18 | 19 | AAA018 (1224,24,foo,,,,"ft2 ",) | 1224 | 24 | foo | | | | ft2 | | (24,25,AAA024) | 24 | 25 | AAA024 (1230,30,foo,,,,"ft2 ",) | 1230 | 30 | foo | | | | ft2 | | (30,31,AAA030) | 30 | 31 | AAA030 (1236,36,foo,,,,"ft2 ",) | 1236 | 36 | foo | | | | ft2 | | (36,37,AAA036) | 36 | 37 | AAA036 (1242,42,foo,,,,"ft2 ",) | 1242 | 42 | foo | | | | ft2 | | (42,43,AAA042) | 42 | 43 | AAA042 (1248,48,foo,,,,"ft2 ",) | 1248 | 48 | foo | | | | ft2 | | (48,49,AAA048) | 48 | 49 | AAA048 (1254,54,foo,,,,"ft2 ",) | 1254 | 54 | foo | | | | ft2 | | (54,55,AAA054) | 54 | 55 | AAA054 (1260,60,foo,,,,"ft2 ",) | 1260 | 60 | foo | | | | ft2 | | (60,61,AAA060) | 60 | 61 | AAA060 (1266,66,foo,,,,"ft2 ",) | 1266 | 66 | foo | | | | ft2 | | (66,67,AAA066) | 66 | 67 | AAA066 (1272,72,foo,,,,"ft2 ",) | 1272 | 72 | foo | | | | ft2 | | (72,73,AAA072) | 72 | 73 | AAA072 (1278,78,foo,,,,"ft2 ",) | 1278 | 78 | foo | | | | ft2 | | (78,79,AAA078) | 78 | 79 | AAA078 (1284,84,foo,,,,"ft2 ",) | 1284 | 84 | foo | | | | ft2 | | (84,85,AAA084) | 84 | 85 | AAA084 (1290,90,foo,,,,"ft2 ",) | 1290 | 90 | foo | | | | ft2 | | (90,91,AAA090) | 90 | 91 | AAA090 (1296,96,foo,,,,"ft2 ",) | 1296 | 96 | foo | | | | ft2 | | (96,97,AAA096) | 96 | 97 | AAA096 (16 rows) EXPLAIN (verbose, costs off) DELETE FROM ft2 USING ft4 LEFT JOIN ft5 ON (ft4.c1 = ft5.c1) WHERE ft2.c1 > 1200 AND ft2.c1 % 10 = 0 AND ft2.c2 = ft4.c1 RETURNING 100; -- can be pushed down QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------ Delete on public.ft2 Output: 100 -> Nested Loop Left Join Output: ft2.ctid, ft2.tableoid, ft4.*, ft5.* Join Filter: (ft4.c1 = ft5.c1) -> Nested Loop Output: ft2.ctid, ft2.tableoid, ft4.*, ft4.c1 Join Filter: (ft2.c2 = ft4.c1) -> Foreign Scan on public.ft2 Output: ft2.ctid, ft2.tableoid, ft2.c2 Node ID: 1 Remote SQL: SELECT c2, ctid, tableoid FROM "S 1"."T 1" WHERE (("C 1" > 1200)) AND ((("C 1" % 10) = 0)) FOR UPDATE -> Foreign Scan on public.ft4 Output: ft4.*, ft4.c1 Node ID: 2 Remote SQL: SELECT c1, c2, c3 FROM "S 1"."T 3" -> Foreign Scan on public.ft5 Output: ft5.*, ft5.c1 Node ID: 3 Remote SQL: SELECT c1, c2, c3 FROM "S 1"."T 4" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c2, ctid, tableoid FROM "S 1"."T 1" WHERE (("C 1" > 1200)) AND ((("C 1" % 10) = 0)) FOR UPDATE LockRows Output: c2, ctid, tableoid, ctid, tableoid -> Partitioned Index Scan using t1_pkey on "S 1"."T 1" Output: c2, ctid, tableoid, ctid, tableoid Index Cond: ("T 1"."C 1" > 1200) Filter: (("T 1"."C 1" % 10) = 0) Selected Partitions: 2 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c1, c2, c3 FROM "S 1"."T 3" Partition Iterator Output: c1, c2, c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" Output: c1, c2, c3 Selected Partitions: 1..2 Node 3: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c1, c2, c3 FROM "S 1"."T 4" Partition Iterator Output: c1, c2, c3 Iterations: 2, Sub Iterations: 4 -> Partitioned Seq Scan on "S 1"."T 4" Output: c1, c2, c3 Selected Partitions: 1..2 Selected Subpartitions: ALL (46 rows) DELETE FROM ft2 USING ft4 LEFT JOIN ft5 ON (ft4.c1 = ft5.c1) WHERE ft2.c1 > 1200 AND ft2.c1 % 10 = 0 AND ft2.c2 = ft4.c1 RETURNING 100; ?column? ---------- 100 100 100 100 100 100 100 100 100 100 (10 rows) DELETE FROM ft2 WHERE ft2.c1 > 1200; -- Test UPDATE with a MULTIEXPR sub-select -- (maybe someday this'll be remotely executable, but not today) EXPLAIN (verbose, costs off) UPDATE ft2 AS target SET (c2, c7) = ( SELECT c2 * 10, c7 FROM ft2 AS src WHERE target.c1 = src.c1 ) WHERE c1 > 1100; QUERY PLAN --------------------------------------------------------------------------------------------------------------------------------------------------------- Update on public.ft2 target -> Foreign Scan on public.ft2 target Output: target.c1, (SubPlan 1), NULL::integer, target.c3, target.c4, target.c5, target.c6, (SubPlan 2), target.c8, target.ctid, target.tableoid Node ID: 1 Remote SQL: SELECT "C 1", c3, c4, c5, c6, c8, ctid, tableoid FROM "S 1"."T 1" WHERE (("C 1" > 1100)) FOR UPDATE SubPlan 1 -> Foreign Scan on public.ft2 src Output: (src.c2 * 10) Node ID: 2 Remote SQL: SELECT c2 FROM "S 1"."T 1" WHERE (($1::integer = "C 1")) SubPlan 2 -> Foreign Scan on public.ft2 src Output: src.c7 Node ID: 3 Remote SQL: SELECT c7 FROM "S 1"."T 1" WHERE (($1::integer = "C 1")) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c3, c4, c5, c6, c8, ctid, tableoid FROM "S 1"."T 1" WHERE (("C 1" > 1100)) FOR UPDATE LockRows Output: "C 1", c3, c4, c5, c6, c8, ctid, tableoid, ctid, tableoid -> Partitioned Index Scan using t1_pkey on "S 1"."T 1" Output: "C 1", c3, c4, c5, c6, c8, ctid, tableoid, ctid, tableoid Index Cond: ("T 1"."C 1" > 1100) Selected Partitions: 2 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c2 FROM "S 1"."T 1" WHERE (($1::integer = "C 1")) failed to get remote plan, error massage is: there is no parameter $1 Node 3: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c7 FROM "S 1"."T 1" WHERE (($1::integer = "C 1")) failed to get remote plan, error massage is: current transaction is aborted, commands ignored until end of transaction block, firstChar[Q] (31 rows) UPDATE ft2 AS target SET (c2, c7) = ( SELECT c2 * 10, c7 FROM ft2 AS src WHERE target.c1 = src.c1 ) WHERE c1 > 1100; UPDATE ft2 AS target SET (c2) = ( SELECT c2 / 10 FROM ft2 AS src WHERE target.c1 = src.c1 ) WHERE c1 > 1100; -- Test UPDATE involving a join that can be pushed down, -- but a SET clause that can't be EXPLAIN (VERBOSE, COSTS OFF) UPDATE ft2 d SET c2 = CASE WHEN random() >= 0 THEN d.c2 ELSE 0 END FROM ft2 AS t WHERE d.c1 = t.c1 AND d.c1 > 1000; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Update on public.ft2 d -> Nested Loop Output: d.c1, CASE WHEN (random() >= 0::double precision) THEN d.c2 ELSE 0 END, NULL::integer, d.c3, d.c4, d.c5, d.c6, d.c7, d.c8, d.ctid, d.tableoid, t.* Join Filter: (d.c1 = t.c1) -> Foreign Scan on public.ft2 d Output: d.c1, d.c2, d.c3, d.c4, d.c5, d.c6, d.c7, d.c8, d.ctid, d.tableoid Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid FROM "S 1"."T 1" WHERE (("C 1" > 1000)) ORDER BY "C 1" ASC NULLS LAST FOR UPDATE -> Foreign Scan on public.ft2 t Output: t.*, t.c1 Node ID: 2 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" > 1000)) ORDER BY "C 1" ASC NULLS LAST FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid FROM "S 1"."T 1" WHERE (("C 1" > 1000)) ORDER BY "C 1" ASC NULLS LAST FOR UPDATE LockRows Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid, ctid, tableoid -> Partitioned Index Scan using t1_pkey on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ctid, tableoid, ctid, tableoid Index Cond: ("T 1"."C 1" > 1000) Selected Partitions: 2 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" WHERE (("C 1" > 1000)) ORDER BY "C 1" ASC NULLS LAST Partitioned Index Scan using t1_pkey on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Index Cond: ("T 1"."C 1" > 1000) Selected Partitions: 2 (27 rows) UPDATE ft2 d SET c2 = CASE WHEN random() >= 0 THEN d.c2 ELSE 0 END FROM ft2 AS t WHERE d.c1 = t.c1 AND d.c1 > 1000; -- Test UPDATE/DELETE with WHERE or JOIN/ON conditions containing -- user-defined operators/functions ALTER SERVER loopback OPTIONS (DROP extensions); ERROR: option "extensions" not found INSERT INTO ft2 (c1,c2,c3) SELECT id, id % 10, to_char(id, 'FM00000') FROM generate_series(2001, 2010) id; EXPLAIN (verbose, costs off) UPDATE ft2 SET c3 = 'bar' WHERE postgres_fdw_abs(c1) > 2000 RETURNING *; -- can't be pushed down QUERY PLAN --------------------------------------------------------------------------------------------------------------------------- Update on public.ft2 Output: c1, c2, c3, c4, c5, c6, c7, c8 -> Foreign Scan on public.ft2 Output: c1, c2, NULL::integer, 'bar'::text, c4, c5, c6, c7, c8, ctid, tableoid Filter: (postgres_fdw_abs(ft2.c1) > 2000) Node ID: 1 Remote SQL: SELECT "C 1", c2, c4, c5, c6, c7, c8, ctid, tableoid FROM "S 1"."T 1" FOR UPDATE FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c4, c5, c6, c7, c8, ctid, tableoid FROM "S 1"."T 1" FOR UPDATE LockRows Output: "C 1", c2, c4, c5, c6, c7, c8, ctid, tableoid, ctid, tableoid -> Partition Iterator Output: "C 1", c2, c4, c5, c6, c7, c8, ctid, tableoid, ctid, tableoid Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c4, c5, c6, c7, c8, ctid, tableoid, ctid, tableoid Selected Partitions: 1..2 (19 rows) UPDATE ft2 SET c3 = 'bar' WHERE postgres_fdw_abs(c1) > 2000 RETURNING *; c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 ------+----+-----+----+----+----+------------+---- 2001 | 1 | bar | | | | ft2 | 2002 | 2 | bar | | | | ft2 | 2003 | 3 | bar | | | | ft2 | 2004 | 4 | bar | | | | ft2 | 2005 | 5 | bar | | | | ft2 | 2006 | 6 | bar | | | | ft2 | 2007 | 7 | bar | | | | ft2 | 2008 | 8 | bar | | | | ft2 | 2009 | 9 | bar | | | | ft2 | 2010 | 0 | bar | | | | ft2 | (10 rows) EXPLAIN (verbose, costs off) UPDATE ft2 SET c3 = 'baz' FROM ft4 INNER JOIN ft5 ON (ft4.c1 = ft5.c1) WHERE ft2.c1 > 2000 AND ft2.c2 === ft4.c1 RETURNING ft2.*, ft4.*, ft5.*; -- can't be pushed down QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Update on public.ft2 Output: ft2.c1, ft2.c2, ft2.c3, ft2.c4, ft2.c5, ft2.c6, ft2.c7, ft2.c8, ft4.c1, ft4.c2, ft4.c3, ft5.c1, ft5.c2, ft5.c3 -> Hash Join Output: ft2.c1, ft2.c2, NULL::integer, 'baz'::text, ft2.c4, ft2.c5, ft2.c6, ft2.c7, ft2.c8, ft2.ctid, ft2.tableoid, ft4.*, ft5.*, ft4.c1, ft4.c2, ft4.c3, ft5.c1, ft5.c2, ft5.c3 Hash Cond: (ft4.c1 = ft5.c1) -> Nested Loop Output: ft2.c1, ft2.c2, ft2.c4, ft2.c5, ft2.c6, ft2.c7, ft2.c8, ft2.ctid, ft2.tableoid, ft4.*, ft4.c1, ft4.c2, ft4.c3 Join Filter: (ft2.c2 === ft4.c1) -> Foreign Scan on public.ft2 Output: ft2.c1, ft2.c2, ft2.c4, ft2.c5, ft2.c6, ft2.c7, ft2.c8, ft2.ctid, ft2.tableoid Node ID: 1 Remote SQL: SELECT "C 1", c2, c4, c5, c6, c7, c8, ctid, tableoid FROM "S 1"."T 1" WHERE (("C 1" > 2000)) FOR UPDATE -> Foreign Scan on public.ft4 Output: ft4.*, ft4.c1, ft4.c2, ft4.c3 Node ID: 2 Remote SQL: SELECT c1, c2, c3 FROM "S 1"."T 3" -> Hash Output: ft5.*, ft5.c1, ft5.c2, ft5.c3 -> Foreign Scan on public.ft5 Output: ft5.*, ft5.c1, ft5.c2, ft5.c3 Node ID: 3 Remote SQL: SELECT c1, c2, c3 FROM "S 1"."T 4" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c4, c5, c6, c7, c8, ctid, tableoid FROM "S 1"."T 1" WHERE (("C 1" > 2000)) FOR UPDATE LockRows Output: "C 1", c2, c4, c5, c6, c7, c8, ctid, tableoid, ctid, tableoid -> Partitioned Index Scan using t1_pkey on "S 1"."T 1" Output: "C 1", c2, c4, c5, c6, c7, c8, ctid, tableoid, ctid, tableoid Index Cond: ("T 1"."C 1" > 2000) Selected Partitions: 2 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c1, c2, c3 FROM "S 1"."T 3" Partition Iterator Output: c1, c2, c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" Output: c1, c2, c3 Selected Partitions: 1..2 Node 3: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c1, c2, c3 FROM "S 1"."T 4" Partition Iterator Output: c1, c2, c3 Iterations: 2, Sub Iterations: 4 -> Partitioned Seq Scan on "S 1"."T 4" Output: c1, c2, c3 Selected Partitions: 1..2 Selected Subpartitions: ALL (47 rows) UPDATE ft2 SET c3 = 'baz' FROM ft4 INNER JOIN ft5 ON (ft4.c1 = ft5.c1) WHERE ft2.c1 > 2000 AND ft2.c2 === ft4.c1 RETURNING ft2.*, ft4.*, ft5.*; c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 | c1 | c2 | c3 | c1 | c2 | c3 ------+----+-----+----+----+----+------------+----+----+----+--------+----+----+-------- 2006 | 6 | baz | | | | ft2 | | 6 | 7 | AAA006 | 6 | 7 | AAA006 (1 row) EXPLAIN (verbose, costs off) DELETE FROM ft2 USING ft4 INNER JOIN ft5 ON (ft4.c1 === ft5.c1) WHERE ft2.c1 > 2000 AND ft2.c2 = ft4.c1 RETURNING ft2.c1, ft2.c2, ft2.c3; -- can't be pushed down QUERY PLAN ----------------------------------------------------------------------------------------------------------------------- Delete on public.ft2 Output: ft2.c1, ft2.c2, ft2.c3 -> Nested Loop Output: ft2.ctid, ft2.tableoid, ft4.*, ft5.* Join Filter: (ft4.c1 === ft5.c1) -> Nested Loop Output: ft2.ctid, ft2.tableoid, ft4.*, ft4.c1 Join Filter: (ft2.c2 = ft4.c1) -> Foreign Scan on public.ft2 Output: ft2.ctid, ft2.tableoid, ft2.c2 Node ID: 1 Remote SQL: SELECT c2, ctid, tableoid FROM "S 1"."T 1" WHERE (("C 1" > 2000)) FOR UPDATE -> Foreign Scan on public.ft4 Output: ft4.*, ft4.c1 Node ID: 2 Remote SQL: SELECT c1, c2, c3 FROM "S 1"."T 3" -> Foreign Scan on public.ft5 Output: ft5.*, ft5.c1 Node ID: 3 Remote SQL: SELECT c1, c2, c3 FROM "S 1"."T 4" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c2, ctid, tableoid FROM "S 1"."T 1" WHERE (("C 1" > 2000)) FOR UPDATE LockRows Output: c2, ctid, tableoid, ctid, tableoid -> Partitioned Index Scan using t1_pkey on "S 1"."T 1" Output: c2, ctid, tableoid, ctid, tableoid Index Cond: ("T 1"."C 1" > 2000) Selected Partitions: 2 Node 2: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c1, c2, c3 FROM "S 1"."T 3" Partition Iterator Output: c1, c2, c3 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 3" Output: c1, c2, c3 Selected Partitions: 1..2 Node 3: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c1, c2, c3 FROM "S 1"."T 4" Partition Iterator Output: c1, c2, c3 Iterations: 2, Sub Iterations: 4 -> Partitioned Seq Scan on "S 1"."T 4" Output: c1, c2, c3 Selected Partitions: 1..2 Selected Subpartitions: ALL (45 rows) DELETE FROM ft2 USING ft4 INNER JOIN ft5 ON (ft4.c1 === ft5.c1) WHERE ft2.c1 > 2000 AND ft2.c2 = ft4.c1 RETURNING ft2.c1, ft2.c2, ft2.c3; c1 | c2 | c3 ------+----+----- 2006 | 6 | baz (1 row) DELETE FROM ft2 WHERE ft2.c1 > 2000; ALTER SERVER loopback OPTIONS (ADD extensions 'postgres_fdw'); ERROR: invalid option "extensions" HINT: Valid options in this context are: service, connect_timeout, dbname, host, remote_nodename, hostaddr, port, localhost, localport, application_name, fencedUdfRPCMode, keepalives, keepalives_idle, keepalives_interval, keepalives_count, tcp_user_timeout, rw_timeout, sslmode, sslcompression, sslcert, sslkey, sslrootcert, sslcrl, requirepeer, krbsrvname, prototype, connection_info, connectionExtraInfo, target_session_attrs, use_remote_estimate, fdw_startup_cost, fdw_tuple_cost, updatable -- Test that trigger on remote table works as expected CREATE OR REPLACE FUNCTION "S 1".F_BRTRIG() RETURNS trigger AS $$ BEGIN NEW.c3 = NEW.c3 || '_trig_update'; RETURN NEW; END; $$ LANGUAGE plpgsql; CREATE TRIGGER t1_br_insert BEFORE INSERT OR UPDATE ON "S 1"."T 1" FOR EACH ROW EXECUTE PROCEDURE "S 1".F_BRTRIG(); INSERT INTO ft2 (c1,c2,c3) VALUES (1208, 818, 'fff') RETURNING *; c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 ------+-----+-----------------+----+----+----+------------+---- 1208 | 818 | fff_trig_update | | | | ft2 | (1 row) INSERT INTO ft2 (c1,c2,c3,c6) VALUES (1218, 818, 'ggg', '(--;') RETURNING *; c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 ------+-----+-----------------+----+----+------+------------+---- 1218 | 818 | ggg_trig_update | | | (--; | ft2 | (1 row) UPDATE ft2 SET c2 = c2 + 600 WHERE c1 % 10 = 8 AND c1 < 1200 RETURNING *; c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 ------+-----+------------------------+------------------------------+--------------------------+----+------------+----- 8 | 608 | 00008_trig_update | Fri Jan 09 00:00:00 1970 PST | Fri Jan 09 00:00:00 1970 | 8 | 8 | foo 18 | 608 | 00018_trig_update | Mon Jan 19 00:00:00 1970 PST | Mon Jan 19 00:00:00 1970 | 8 | 8 | foo 28 | 608 | 00028_trig_update | Thu Jan 29 00:00:00 1970 PST | Thu Jan 29 00:00:00 1970 | 8 | 8 | foo 38 | 608 | 00038_trig_update | Sun Feb 08 00:00:00 1970 PST | Sun Feb 08 00:00:00 1970 | 8 | 8 | foo 48 | 608 | 00048_trig_update | Wed Feb 18 00:00:00 1970 PST | Wed Feb 18 00:00:00 1970 | 8 | 8 | foo 58 | 608 | 00058_trig_update | Sat Feb 28 00:00:00 1970 PST | Sat Feb 28 00:00:00 1970 | 8 | 8 | foo 68 | 608 | 00068_trig_update | Tue Mar 10 00:00:00 1970 PST | Tue Mar 10 00:00:00 1970 | 8 | 8 | foo 78 | 608 | 00078_trig_update | Fri Mar 20 00:00:00 1970 PST | Fri Mar 20 00:00:00 1970 | 8 | 8 | foo 88 | 608 | 00088_trig_update | Mon Mar 30 00:00:00 1970 PST | Mon Mar 30 00:00:00 1970 | 8 | 8 | foo 98 | 608 | 00098_trig_update | Thu Apr 09 00:00:00 1970 PST | Thu Apr 09 00:00:00 1970 | 8 | 8 | foo 108 | 608 | 00108_trig_update | Fri Jan 09 00:00:00 1970 PST | Fri Jan 09 00:00:00 1970 | 8 | 8 | foo 118 | 608 | 00118_trig_update | Mon Jan 19 00:00:00 1970 PST | Mon Jan 19 00:00:00 1970 | 8 | 8 | foo 128 | 608 | 00128_trig_update | Thu Jan 29 00:00:00 1970 PST | Thu Jan 29 00:00:00 1970 | 8 | 8 | foo 138 | 608 | 00138_trig_update | Sun Feb 08 00:00:00 1970 PST | Sun Feb 08 00:00:00 1970 | 8 | 8 | foo 148 | 608 | 00148_trig_update | Wed Feb 18 00:00:00 1970 PST | Wed Feb 18 00:00:00 1970 | 8 | 8 | foo 158 | 608 | 00158_trig_update | Sat Feb 28 00:00:00 1970 PST | Sat Feb 28 00:00:00 1970 | 8 | 8 | foo 168 | 608 | 00168_trig_update | Tue Mar 10 00:00:00 1970 PST | Tue Mar 10 00:00:00 1970 | 8 | 8 | foo 178 | 608 | 00178_trig_update | Fri Mar 20 00:00:00 1970 PST | Fri Mar 20 00:00:00 1970 | 8 | 8 | foo 188 | 608 | 00188_trig_update | Mon Mar 30 00:00:00 1970 PST | Mon Mar 30 00:00:00 1970 | 8 | 8 | foo 198 | 608 | 00198_trig_update | Thu Apr 09 00:00:00 1970 PST | Thu Apr 09 00:00:00 1970 | 8 | 8 | foo 208 | 608 | 00208_trig_update | Fri Jan 09 00:00:00 1970 PST | Fri Jan 09 00:00:00 1970 | 8 | 8 | foo 218 | 608 | 00218_trig_update | Mon Jan 19 00:00:00 1970 PST | Mon Jan 19 00:00:00 1970 | 8 | 8 | foo 228 | 608 | 00228_trig_update | Thu Jan 29 00:00:00 1970 PST | Thu Jan 29 00:00:00 1970 | 8 | 8 | foo 238 | 608 | 00238_trig_update | Sun Feb 08 00:00:00 1970 PST | Sun Feb 08 00:00:00 1970 | 8 | 8 | foo 248 | 608 | 00248_trig_update | Wed Feb 18 00:00:00 1970 PST | Wed Feb 18 00:00:00 1970 | 8 | 8 | foo 258 | 608 | 00258_trig_update | Sat Feb 28 00:00:00 1970 PST | Sat Feb 28 00:00:00 1970 | 8 | 8 | foo 268 | 608 | 00268_trig_update | Tue Mar 10 00:00:00 1970 PST | Tue Mar 10 00:00:00 1970 | 8 | 8 | foo 278 | 608 | 00278_trig_update | Fri Mar 20 00:00:00 1970 PST | Fri Mar 20 00:00:00 1970 | 8 | 8 | foo 288 | 608 | 00288_trig_update | Mon Mar 30 00:00:00 1970 PST | Mon Mar 30 00:00:00 1970 | 8 | 8 | foo 298 | 608 | 00298_trig_update | Thu Apr 09 00:00:00 1970 PST | Thu Apr 09 00:00:00 1970 | 8 | 8 | foo 308 | 608 | 00308_trig_update | Fri Jan 09 00:00:00 1970 PST | Fri Jan 09 00:00:00 1970 | 8 | 8 | foo 318 | 608 | 00318_trig_update | Mon Jan 19 00:00:00 1970 PST | Mon Jan 19 00:00:00 1970 | 8 | 8 | foo 328 | 608 | 00328_trig_update | Thu Jan 29 00:00:00 1970 PST | Thu Jan 29 00:00:00 1970 | 8 | 8 | foo 338 | 608 | 00338_trig_update | Sun Feb 08 00:00:00 1970 PST | Sun Feb 08 00:00:00 1970 | 8 | 8 | foo 348 | 608 | 00348_trig_update | Wed Feb 18 00:00:00 1970 PST | Wed Feb 18 00:00:00 1970 | 8 | 8 | foo 358 | 608 | 00358_trig_update | Sat Feb 28 00:00:00 1970 PST | Sat Feb 28 00:00:00 1970 | 8 | 8 | foo 368 | 608 | 00368_trig_update | Tue Mar 10 00:00:00 1970 PST | Tue Mar 10 00:00:00 1970 | 8 | 8 | foo 378 | 608 | 00378_trig_update | Fri Mar 20 00:00:00 1970 PST | Fri Mar 20 00:00:00 1970 | 8 | 8 | foo 388 | 608 | 00388_trig_update | Mon Mar 30 00:00:00 1970 PST | Mon Mar 30 00:00:00 1970 | 8 | 8 | foo 398 | 608 | 00398_trig_update | Thu Apr 09 00:00:00 1970 PST | Thu Apr 09 00:00:00 1970 | 8 | 8 | foo 408 | 608 | 00408_trig_update | Fri Jan 09 00:00:00 1970 PST | Fri Jan 09 00:00:00 1970 | 8 | 8 | foo 418 | 608 | 00418_trig_update | Mon Jan 19 00:00:00 1970 PST | Mon Jan 19 00:00:00 1970 | 8 | 8 | foo 428 | 608 | 00428_trig_update | Thu Jan 29 00:00:00 1970 PST | Thu Jan 29 00:00:00 1970 | 8 | 8 | foo 438 | 608 | 00438_trig_update | Sun Feb 08 00:00:00 1970 PST | Sun Feb 08 00:00:00 1970 | 8 | 8 | foo 448 | 608 | 00448_trig_update | Wed Feb 18 00:00:00 1970 PST | Wed Feb 18 00:00:00 1970 | 8 | 8 | foo 458 | 608 | 00458_trig_update | Sat Feb 28 00:00:00 1970 PST | Sat Feb 28 00:00:00 1970 | 8 | 8 | foo 468 | 608 | 00468_trig_update | Tue Mar 10 00:00:00 1970 PST | Tue Mar 10 00:00:00 1970 | 8 | 8 | foo 478 | 608 | 00478_trig_update | Fri Mar 20 00:00:00 1970 PST | Fri Mar 20 00:00:00 1970 | 8 | 8 | foo 488 | 608 | 00488_trig_update | Mon Mar 30 00:00:00 1970 PST | Mon Mar 30 00:00:00 1970 | 8 | 8 | foo 498 | 608 | 00498_trig_update | Thu Apr 09 00:00:00 1970 PST | Thu Apr 09 00:00:00 1970 | 8 | 8 | foo 508 | 608 | 00508_trig_update | Fri Jan 09 00:00:00 1970 PST | Fri Jan 09 00:00:00 1970 | 8 | 8 | foo 518 | 608 | 00518_trig_update | Mon Jan 19 00:00:00 1970 PST | Mon Jan 19 00:00:00 1970 | 8 | 8 | foo 528 | 608 | 00528_trig_update | Thu Jan 29 00:00:00 1970 PST | Thu Jan 29 00:00:00 1970 | 8 | 8 | foo 538 | 608 | 00538_trig_update | Sun Feb 08 00:00:00 1970 PST | Sun Feb 08 00:00:00 1970 | 8 | 8 | foo 548 | 608 | 00548_trig_update | Wed Feb 18 00:00:00 1970 PST | Wed Feb 18 00:00:00 1970 | 8 | 8 | foo 558 | 608 | 00558_trig_update | Sat Feb 28 00:00:00 1970 PST | Sat Feb 28 00:00:00 1970 | 8 | 8 | foo 568 | 608 | 00568_trig_update | Tue Mar 10 00:00:00 1970 PST | Tue Mar 10 00:00:00 1970 | 8 | 8 | foo 578 | 608 | 00578_trig_update | Fri Mar 20 00:00:00 1970 PST | Fri Mar 20 00:00:00 1970 | 8 | 8 | foo 588 | 608 | 00588_trig_update | Mon Mar 30 00:00:00 1970 PST | Mon Mar 30 00:00:00 1970 | 8 | 8 | foo 598 | 608 | 00598_trig_update | Thu Apr 09 00:00:00 1970 PST | Thu Apr 09 00:00:00 1970 | 8 | 8 | foo 608 | 608 | 00608_trig_update | Fri Jan 09 00:00:00 1970 PST | Fri Jan 09 00:00:00 1970 | 8 | 8 | foo 618 | 608 | 00618_trig_update | Mon Jan 19 00:00:00 1970 PST | Mon Jan 19 00:00:00 1970 | 8 | 8 | foo 628 | 608 | 00628_trig_update | Thu Jan 29 00:00:00 1970 PST | Thu Jan 29 00:00:00 1970 | 8 | 8 | foo 638 | 608 | 00638_trig_update | Sun Feb 08 00:00:00 1970 PST | Sun Feb 08 00:00:00 1970 | 8 | 8 | foo 648 | 608 | 00648_trig_update | Wed Feb 18 00:00:00 1970 PST | Wed Feb 18 00:00:00 1970 | 8 | 8 | foo 658 | 608 | 00658_trig_update | Sat Feb 28 00:00:00 1970 PST | Sat Feb 28 00:00:00 1970 | 8 | 8 | foo 668 | 608 | 00668_trig_update | Tue Mar 10 00:00:00 1970 PST | Tue Mar 10 00:00:00 1970 | 8 | 8 | foo 678 | 608 | 00678_trig_update | Fri Mar 20 00:00:00 1970 PST | Fri Mar 20 00:00:00 1970 | 8 | 8 | foo 688 | 608 | 00688_trig_update | Mon Mar 30 00:00:00 1970 PST | Mon Mar 30 00:00:00 1970 | 8 | 8 | foo 698 | 608 | 00698_trig_update | Thu Apr 09 00:00:00 1970 PST | Thu Apr 09 00:00:00 1970 | 8 | 8 | foo 708 | 608 | 00708_trig_update | Fri Jan 09 00:00:00 1970 PST | Fri Jan 09 00:00:00 1970 | 8 | 8 | foo 718 | 608 | 00718_trig_update | Mon Jan 19 00:00:00 1970 PST | Mon Jan 19 00:00:00 1970 | 8 | 8 | foo 728 | 608 | 00728_trig_update | Thu Jan 29 00:00:00 1970 PST | Thu Jan 29 00:00:00 1970 | 8 | 8 | foo 738 | 608 | 00738_trig_update | Sun Feb 08 00:00:00 1970 PST | Sun Feb 08 00:00:00 1970 | 8 | 8 | foo 748 | 608 | 00748_trig_update | Wed Feb 18 00:00:00 1970 PST | Wed Feb 18 00:00:00 1970 | 8 | 8 | foo 758 | 608 | 00758_trig_update | Sat Feb 28 00:00:00 1970 PST | Sat Feb 28 00:00:00 1970 | 8 | 8 | foo 768 | 608 | 00768_trig_update | Tue Mar 10 00:00:00 1970 PST | Tue Mar 10 00:00:00 1970 | 8 | 8 | foo 778 | 608 | 00778_trig_update | Fri Mar 20 00:00:00 1970 PST | Fri Mar 20 00:00:00 1970 | 8 | 8 | foo 788 | 608 | 00788_trig_update | Mon Mar 30 00:00:00 1970 PST | Mon Mar 30 00:00:00 1970 | 8 | 8 | foo 798 | 608 | 00798_trig_update | Thu Apr 09 00:00:00 1970 PST | Thu Apr 09 00:00:00 1970 | 8 | 8 | foo 808 | 608 | 00808_trig_update | Fri Jan 09 00:00:00 1970 PST | Fri Jan 09 00:00:00 1970 | 8 | 8 | foo 818 | 608 | 00818_trig_update | Mon Jan 19 00:00:00 1970 PST | Mon Jan 19 00:00:00 1970 | 8 | 8 | foo 828 | 608 | 00828_trig_update | Thu Jan 29 00:00:00 1970 PST | Thu Jan 29 00:00:00 1970 | 8 | 8 | foo 838 | 608 | 00838_trig_update | Sun Feb 08 00:00:00 1970 PST | Sun Feb 08 00:00:00 1970 | 8 | 8 | foo 848 | 608 | 00848_trig_update | Wed Feb 18 00:00:00 1970 PST | Wed Feb 18 00:00:00 1970 | 8 | 8 | foo 858 | 608 | 00858_trig_update | Sat Feb 28 00:00:00 1970 PST | Sat Feb 28 00:00:00 1970 | 8 | 8 | foo 868 | 608 | 00868_trig_update | Tue Mar 10 00:00:00 1970 PST | Tue Mar 10 00:00:00 1970 | 8 | 8 | foo 878 | 608 | 00878_trig_update | Fri Mar 20 00:00:00 1970 PST | Fri Mar 20 00:00:00 1970 | 8 | 8 | foo 888 | 608 | 00888_trig_update | Mon Mar 30 00:00:00 1970 PST | Mon Mar 30 00:00:00 1970 | 8 | 8 | foo 898 | 608 | 00898_trig_update | Thu Apr 09 00:00:00 1970 PST | Thu Apr 09 00:00:00 1970 | 8 | 8 | foo 908 | 608 | 00908_trig_update | Fri Jan 09 00:00:00 1970 PST | Fri Jan 09 00:00:00 1970 | 8 | 8 | foo 918 | 608 | 00918_trig_update | Mon Jan 19 00:00:00 1970 PST | Mon Jan 19 00:00:00 1970 | 8 | 8 | foo 928 | 608 | 00928_trig_update | Thu Jan 29 00:00:00 1970 PST | Thu Jan 29 00:00:00 1970 | 8 | 8 | foo 938 | 608 | 00938_trig_update | Sun Feb 08 00:00:00 1970 PST | Sun Feb 08 00:00:00 1970 | 8 | 8 | foo 948 | 608 | 00948_trig_update | Wed Feb 18 00:00:00 1970 PST | Wed Feb 18 00:00:00 1970 | 8 | 8 | foo 958 | 608 | 00958_trig_update | Sat Feb 28 00:00:00 1970 PST | Sat Feb 28 00:00:00 1970 | 8 | 8 | foo 968 | 608 | 00968_trig_update | Tue Mar 10 00:00:00 1970 PST | Tue Mar 10 00:00:00 1970 | 8 | 8 | foo 978 | 608 | 00978_trig_update | Fri Mar 20 00:00:00 1970 PST | Fri Mar 20 00:00:00 1970 | 8 | 8 | foo 988 | 608 | 00988_trig_update | Mon Mar 30 00:00:00 1970 PST | Mon Mar 30 00:00:00 1970 | 8 | 8 | foo 998 | 608 | 00998_trig_update | Thu Apr 09 00:00:00 1970 PST | Thu Apr 09 00:00:00 1970 | 8 | 8 | foo 1008 | 708 | 0000800008_trig_update | | | | ft2 | 1018 | 708 | 0001800018_trig_update | | | | ft2 | (102 rows) -- Test errors thrown on remote side during update ALTER TABLE "S 1"."T 1" ADD CONSTRAINT c2positive CHECK (c2 >= 0); INSERT INTO ft1(c1, c2) VALUES(11, 12); -- duplicate key ERROR: duplicate key value violates unique constraint "t1_pkey" DETAIL: Key ("C 1")=(11) already exists. CONTEXT: Remote SQL command: INSERT INTO "S 1"."T 1"("C 1", c2, c3, c4, c5, c6, c7, c8) VALUES ($1, $2, $3, $4, $5, $6, $7, $8) INSERT INTO ft1(c1, c2) VALUES(11, 12) ON DUPLICATE KEY UPDATE NOTHING; -- works ERROR: INSERT ON DUPLICATE KEY UPDATE is not supported on foreign table. INSERT INTO ft1(c1, c2) VALUES(11, 12) ON DUPLICATE KEY UPDATE c3 = 'ffg'; -- unsupported ERROR: INSERT ON DUPLICATE KEY UPDATE is not supported on foreign table. INSERT INTO ft1(c1, c2) VALUES(1111, -2); -- c2positive ERROR: new row for relation "T 1" violates check constraint "c2positive" DETAIL: N/A CONTEXT: Remote SQL command: INSERT INTO "S 1"."T 1"("C 1", c2, c3, c4, c5, c6, c7, c8) VALUES ($1, $2, $3, $4, $5, $6, $7, $8) UPDATE ft1 SET c2 = -c2 WHERE c1 = 1; -- c2positive ERROR: new row for relation "T 1" violates check constraint "c2positive" DETAIL: N/A CONTEXT: Remote SQL command: UPDATE "S 1"."T 1" SET c2 = $3 WHERE ctid = $1 and tableoid = $2 -- Test savepoint/rollback behavior select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1; c2 | count -----+------- 0 | 100 1 | 100 4 | 100 6 | 100 100 | 2 101 | 2 104 | 2 106 | 2 201 | 1 204 | 1 303 | 100 403 | 2 407 | 100 (13 rows) select c2, count(*) from "S 1"."T 1" where c2 < 500 group by 1 order by 1; c2 | count -----+------- 0 | 100 1 | 100 4 | 100 6 | 100 100 | 2 101 | 2 104 | 2 106 | 2 201 | 1 204 | 1 303 | 100 403 | 2 407 | 100 (13 rows) begin; update ft2 set c2 = 42 where c2 = 0; select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1; c2 | count -----+------- 1 | 100 4 | 100 6 | 100 42 | 100 100 | 2 101 | 2 104 | 2 106 | 2 201 | 1 204 | 1 303 | 100 403 | 2 407 | 100 (13 rows) savepoint s1; update ft2 set c2 = 44 where c2 = 4; select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1; c2 | count -----+------- 1 | 100 6 | 100 42 | 100 44 | 100 100 | 2 101 | 2 104 | 2 106 | 2 201 | 1 204 | 1 303 | 100 403 | 2 407 | 100 (13 rows) release savepoint s1; select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1; c2 | count -----+------- 1 | 100 6 | 100 42 | 100 44 | 100 100 | 2 101 | 2 104 | 2 106 | 2 201 | 1 204 | 1 303 | 100 403 | 2 407 | 100 (13 rows) savepoint s2; update ft2 set c2 = 46 where c2 = 6; select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1; c2 | count -----+------- 1 | 100 42 | 100 44 | 100 46 | 100 100 | 2 101 | 2 104 | 2 106 | 2 201 | 1 204 | 1 303 | 100 403 | 2 407 | 100 (13 rows) rollback to savepoint s2; select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1; c2 | count -----+------- 1 | 100 6 | 100 42 | 100 44 | 100 100 | 2 101 | 2 104 | 2 106 | 2 201 | 1 204 | 1 303 | 100 403 | 2 407 | 100 (13 rows) release savepoint s2; select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1; c2 | count -----+------- 1 | 100 6 | 100 42 | 100 44 | 100 100 | 2 101 | 2 104 | 2 106 | 2 201 | 1 204 | 1 303 | 100 403 | 2 407 | 100 (13 rows) savepoint s3; update ft2 set c2 = -2 where c2 = 42 and c1 = 10; -- fail on remote side ERROR: new row for relation "T 1" violates check constraint "c2positive" DETAIL: N/A CONTEXT: Remote SQL command: UPDATE "S 1"."T 1" SET c2 = $3 WHERE ctid = $1 and tableoid = $2 rollback to savepoint s3; select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1; c2 | count -----+------- 1 | 100 6 | 100 42 | 100 44 | 100 100 | 2 101 | 2 104 | 2 106 | 2 201 | 1 204 | 1 303 | 100 403 | 2 407 | 100 (13 rows) release savepoint s3; select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1; c2 | count -----+------- 1 | 100 6 | 100 42 | 100 44 | 100 100 | 2 101 | 2 104 | 2 106 | 2 201 | 1 204 | 1 303 | 100 403 | 2 407 | 100 (13 rows) -- none of the above is committed yet remotely select c2, count(*) from "S 1"."T 1" where c2 < 500 group by 1 order by 1; c2 | count -----+------- 0 | 100 1 | 100 4 | 100 6 | 100 100 | 2 101 | 2 104 | 2 106 | 2 201 | 1 204 | 1 303 | 100 403 | 2 407 | 100 (13 rows) commit; select c2, count(*) from ft2 where c2 < 500 group by 1 order by 1; c2 | count -----+------- 1 | 100 6 | 100 42 | 100 44 | 100 100 | 2 101 | 2 104 | 2 106 | 2 201 | 1 204 | 1 303 | 100 403 | 2 407 | 100 (13 rows) select c2, count(*) from "S 1"."T 1" where c2 < 500 group by 1 order by 1; c2 | count -----+------- 1 | 100 6 | 100 42 | 100 44 | 100 100 | 2 101 | 2 104 | 2 106 | 2 201 | 1 204 | 1 303 | 100 403 | 2 407 | 100 (13 rows) VACUUM ANALYZE "S 1"."T 1"; -- Above DMLs add data with c6 as NULL in ft1, so test ORDER BY NULLS LAST and NULLs -- FIRST behavior here. -- ORDER BY DESC NULLS LAST options EXPLAIN (VERBOSE, COSTS OFF) SELECT * FROM ft1 ORDER BY c6 DESC NULLS LAST, c1 OFFSET 795 LIMIT 10; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Foreign Scan on public.ft1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" ORDER BY c6::text DESC NULLS LAST, "C 1" ASC NULLS LAST LIMIT 10::bigint OFFSET 795::bigint FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" ORDER BY c6::text DESC NULLS LAST, "C 1" ASC NULLS LAST LIMIT 10::bigint OFFSET 795::bigint Limit Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ((c6)::text) -> Sort Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ((c6)::text) Sort Key: "T 1".c6 DESC NULLS LAST, "T 1"."C 1" -> Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8, (c6)::text Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8, (c6)::text Selected Partitions: 1..2 (19 rows) SELECT * FROM ft1 ORDER BY c6 DESC NULLS LAST, c1 OFFSET 795 LIMIT 10; c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 ------+-----+--------------------+------------------------------+--------------------------+------+------------+----- 960 | 42 | 00960_trig_update | Mon Mar 02 00:00:00 1970 PST | Mon Mar 02 00:00:00 1970 | 0 | 0 | foo 970 | 42 | 00970_trig_update | Thu Mar 12 00:00:00 1970 PST | Thu Mar 12 00:00:00 1970 | 0 | 0 | foo 980 | 42 | 00980_trig_update | Sun Mar 22 00:00:00 1970 PST | Sun Mar 22 00:00:00 1970 | 0 | 0 | foo 990 | 42 | 00990_trig_update | Wed Apr 01 00:00:00 1970 PST | Wed Apr 01 00:00:00 1970 | 0 | 0 | foo 1000 | 42 | 01000_trig_update | Thu Jan 01 00:00:00 1970 PST | Thu Jan 01 00:00:00 1970 | 0 | 0 | foo 1218 | 818 | ggg_trig_update | | | (--; | ft2 | 1001 | 101 | 0000100001 | | | | ft2 | 1003 | 403 | 0000300003_update3 | | | | ft2 | 1004 | 104 | 0000400004 | | | | ft2 | 1006 | 106 | 0000600006 | | | | ft2 | (10 rows) -- ORDER BY DESC NULLS FIRST options EXPLAIN (VERBOSE, COSTS OFF) SELECT * FROM ft1 ORDER BY c6 DESC NULLS FIRST, c1 OFFSET 15 LIMIT 10; QUERY PLAN ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Foreign Scan on public.ft1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" ORDER BY c6::text DESC NULLS FIRST, "C 1" ASC NULLS LAST LIMIT 10::bigint OFFSET 15::bigint FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" ORDER BY c6::text DESC NULLS FIRST, "C 1" ASC NULLS LAST LIMIT 10::bigint OFFSET 15::bigint Limit Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ((c6)::text) -> Sort Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ((c6)::text) Sort Key: "T 1".c6 DESC, "T 1"."C 1" -> Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8, (c6)::text Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8, (c6)::text Selected Partitions: 1..2 (19 rows) SELECT * FROM ft1 ORDER BY c6 DESC NULLS FIRST, c1 OFFSET 15 LIMIT 10; c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 ------+-----+-----------------+------------------------------+--------------------------+----+------------+----- 1020 | 100 | 0002000020 | | | | ft2 | 1101 | 201 | aaa | | | | ft2 | 1103 | 503 | ccc_update3 | | | | ft2 | 1104 | 204 | ddd | | | | ft2 | 1208 | 818 | fff_trig_update | | | | ft2 | 9 | 509 | 00009_update9 | Sat Jan 10 00:00:00 1970 PST | Sat Jan 10 00:00:00 1970 | 9 | ft2 | foo 19 | 509 | 00019_update9 | Tue Jan 20 00:00:00 1970 PST | Tue Jan 20 00:00:00 1970 | 9 | ft2 | foo 29 | 509 | 00029_update9 | Fri Jan 30 00:00:00 1970 PST | Fri Jan 30 00:00:00 1970 | 9 | ft2 | foo 39 | 509 | 00039_update9 | Mon Feb 09 00:00:00 1970 PST | Mon Feb 09 00:00:00 1970 | 9 | ft2 | foo 49 | 509 | 00049_update9 | Thu Feb 19 00:00:00 1970 PST | Thu Feb 19 00:00:00 1970 | 9 | ft2 | foo (10 rows) -- ORDER BY ASC NULLS FIRST options EXPLAIN (VERBOSE, COSTS OFF) SELECT * FROM ft1 ORDER BY c6 ASC NULLS FIRST, c1 OFFSET 15 LIMIT 10; QUERY PLAN ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Foreign Scan on public.ft1 Output: c1, c2, c3, c4, c5, c6, c7, c8 Node ID: 1 Remote SQL: SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" ORDER BY c6::text ASC NULLS FIRST, "C 1" ASC NULLS LAST LIMIT 10::bigint OFFSET 15::bigint FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT "C 1", c2, c3, c4, c5, c6, c7, c8 FROM "S 1"."T 1" ORDER BY c6::text ASC NULLS FIRST, "C 1" ASC NULLS LAST LIMIT 10::bigint OFFSET 15::bigint Limit Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ((c6)::text) -> Sort Output: "C 1", c2, c3, c4, c5, c6, c7, c8, ((c6)::text) Sort Key: "T 1".c6 NULLS FIRST, "T 1"."C 1" -> Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8, (c6)::text Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8, (c6)::text Selected Partitions: 1..2 (19 rows) SELECT * FROM ft1 ORDER BY c6 ASC NULLS FIRST, c1 OFFSET 15 LIMIT 10; c1 | c2 | c3 | c4 | c5 | c6 | c7 | c8 ------+-----+-------------------+------------------------------+--------------------------+------+------------+----- 1020 | 100 | 0002000020 | | | | ft2 | 1101 | 201 | aaa | | | | ft2 | 1103 | 503 | ccc_update3 | | | | ft2 | 1104 | 204 | ddd | | | | ft2 | 1208 | 818 | fff_trig_update | | | | ft2 | 1218 | 818 | ggg_trig_update | | | (--; | ft2 | 10 | 42 | 00010_trig_update | Sun Jan 11 00:00:00 1970 PST | Sun Jan 11 00:00:00 1970 | 0 | 0 | foo 20 | 42 | 00020_trig_update | Wed Jan 21 00:00:00 1970 PST | Wed Jan 21 00:00:00 1970 | 0 | 0 | foo 30 | 42 | 00030_trig_update | Sat Jan 31 00:00:00 1970 PST | Sat Jan 31 00:00:00 1970 | 0 | 0 | foo 40 | 42 | 00040_trig_update | Tue Feb 10 00:00:00 1970 PST | Tue Feb 10 00:00:00 1970 | 0 | 0 | foo (10 rows) -- ====================================================================================================================================== -- TEST-MODULE: check constraints -- -------------------------------------- -- openGauss not support to "ALTER FOREIGN TABLE ft1 ADD CONSTRAINT", so this test module -- is unuseful. -- ====================================================================================================================================== -- Consistent check constraints provide consistent results ALTER FOREIGN TABLE ft1 ADD CONSTRAINT ft1_c2positive CHECK (c2 >= 0); ERROR: "ft1" is not a table EXPLAIN (VERBOSE, COSTS OFF) SELECT count(*) FROM ft1 WHERE c2 < 0; QUERY PLAN ---------------------------------------------------------------------------------------- Aggregate Output: count(*) -> Foreign Scan on public.ft1 Node ID: 1 Remote SQL: SELECT NULL FROM "S 1"."T 1" WHERE ((c2 < 0)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT NULL FROM "S 1"."T 1" WHERE ((c2 < 0)) Partition Iterator Output: NULL::text Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: NULL::text Filter: ("T 1".c2 < 0) Selected Partitions: 1..2 (16 rows) SELECT count(*) FROM ft1 WHERE c2 < 0; count ------- 0 (1 row) SET constraint_exclusion = 'on'; EXPLAIN (VERBOSE, COSTS OFF) SELECT count(*) FROM ft1 WHERE c2 < 0; QUERY PLAN ---------------------------------------------------------------------------------------- Aggregate Output: count(*) -> Foreign Scan on public.ft1 Node ID: 1 Remote SQL: SELECT NULL FROM "S 1"."T 1" WHERE ((c2 < 0)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT NULL FROM "S 1"."T 1" WHERE ((c2 < 0)) Partition Iterator Output: NULL::text Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: NULL::text Filter: ("T 1".c2 < 0) Selected Partitions: 1..2 (16 rows) SELECT count(*) FROM ft1 WHERE c2 < 0; count ------- 0 (1 row) RESET constraint_exclusion; -- check constraint is enforced on the remote side, not locally INSERT INTO ft1(c1, c2) VALUES(1111, -2); -- c2positive ERROR: new row for relation "T 1" violates check constraint "c2positive" DETAIL: N/A CONTEXT: Remote SQL command: INSERT INTO "S 1"."T 1"("C 1", c2, c3, c4, c5, c6, c7, c8) VALUES ($1, $2, $3, $4, $5, $6, $7, $8) UPDATE ft1 SET c2 = -c2 WHERE c1 = 1; -- c2positive ERROR: new row for relation "T 1" violates check constraint "c2positive" DETAIL: N/A CONTEXT: Remote SQL command: UPDATE "S 1"."T 1" SET c2 = $3 WHERE ctid = $1 and tableoid = $2 ALTER FOREIGN TABLE ft1 DROP CONSTRAINT ft1_c2positive; ERROR: constraint "ft1_c2positive" of relation "ft1" does not exist -- But inconsistent check constraints provide inconsistent results ALTER FOREIGN TABLE ft1 ADD CONSTRAINT ft1_c2negative CHECK (c2 < 0); ERROR: "ft1" is not a table EXPLAIN (VERBOSE, COSTS OFF) SELECT count(*) FROM ft1 WHERE c2 >= 0; QUERY PLAN --------------------------------------------------------------------------------------------- Foreign Scan Output: (count(*)) Node ID: 1 Relations: Aggregate on (public.ft1) Remote SQL: SELECT count(*) FROM "S 1"."T 1" WHERE ((c2 >= 0)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT count(*) FROM "S 1"."T 1" WHERE ((c2 >= 0)) Aggregate Output: count(*) -> Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Filter: ("T 1".c2 >= 0) Selected Partitions: 1..2 (18 rows) SELECT count(*) FROM ft1 WHERE c2 >= 0; count ------- 821 (1 row) SET constraint_exclusion = 'on'; EXPLAIN (VERBOSE, COSTS OFF) SELECT count(*) FROM ft1 WHERE c2 >= 0; QUERY PLAN --------------------------------------------------------------------------------------------- Foreign Scan Output: (count(*)) Node ID: 1 Relations: Aggregate on (public.ft1) Remote SQL: SELECT count(*) FROM "S 1"."T 1" WHERE ((c2 >= 0)) FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT count(*) FROM "S 1"."T 1" WHERE ((c2 >= 0)) Aggregate Output: count(*) -> Partition Iterator Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Iterations: 2 -> Partitioned Seq Scan on "S 1"."T 1" Output: "C 1", c2, c3, c4, c5, c6, c7, c8 Filter: ("T 1".c2 >= 0) Selected Partitions: 1..2 (18 rows) SELECT count(*) FROM ft1 WHERE c2 >= 0; count ------- 821 (1 row) RESET constraint_exclusion; -- local check constraint is not actually enforced INSERT INTO ft1(c1, c2) VALUES(1111, 2); UPDATE ft1 SET c2 = c2 + 1 WHERE c1 = 1; ALTER FOREIGN TABLE ft1 DROP CONSTRAINT ft1_c2negative; ERROR: constraint "ft1_c2negative" of relation "ft1" does not exist -- ====================================================================================================================================== -- TEST-MODULE: Incorrect Usage -- -------------------------------------- -- ====================================================================================================================================== CREATE FOREIGN TABLE ftx ( c1 int NOT NULL, c2 int NOT NULL, c3 text ) SERVER loopback OPTIONS (schema_name 'S 1', table_name 'T 4'); EXPLAIN (VERBOSE, COSTS OFF)select * from ftx; QUERY PLAN ----------------------------------------------------------------------------- Foreign Scan on public.ftx Output: c1, c2, c3 Node ID: 1 Remote SQL: SELECT c1, c2, c3 FROM "S 1"."T 4" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c1, c2, c3 FROM "S 1"."T 4" Partition Iterator Output: c1, c2, c3 Iterations: 2, Sub Iterations: 4 -> Partitioned Seq Scan on "S 1"."T 4" Output: c1, c2, c3 Selected Partitions: 1..2 Selected Subpartitions: ALL (15 rows) select * from ftx; c1 | c2 | c3 ----+-----+-------- 3 | 4 | AAA003 6 | 7 | AAA006 15 | 16 | AAA015 21 | 22 | AAA021 24 | 25 | AAA024 30 | 31 | AAA030 33 | 34 | AAA033 42 | 43 | AAA042 9 | 10 | 36 | 37 | 12 | 13 | AAA012 39 | 40 | AAA039 48 | 49 | AAA048 18 | 19 | 27 | 28 | 45 | 46 | 57 | 58 | AAA057 60 | 61 | AAA060 78 | 79 | AAA078 87 | 88 | AAA087 93 | 94 | AAA093 96 | 97 | AAA096 54 | 55 | 72 | 73 | 81 | 82 | 90 | 91 | 99 | 100 | 51 | 52 | AAA051 66 | 67 | AAA066 69 | 70 | AAA069 75 | 76 | AAA075 84 | 85 | AAA084 63 | 64 | (33 rows) EXPLAIN (VERBOSE, COSTS OFF)select * from ftx partition(ptb1); --ERR ERROR: relation "ftx" is not partitioned table DETAIL: N/A. select * from ftx partition(ptb1); ERROR: relation "ftx" is not partitioned table DETAIL: N/A. EXPLAIN (VERBOSE, COSTS OFF)select * from ftx partition(ptb1) subpartition(ptb11); --ERR ERROR: relation "ftx" is not partitioned table DETAIL: N/A. select * from ftx partition(ptb1) subpartition(ptb11); ERROR: relation "ftx" is not partitioned table DETAIL: N/A. DROP FOREIGN TABLE ftx; CREATE FOREIGN TABLE ftx ( c1 int NOT NULL, c2 int NOT NULL, c3 text ) SERVER loopback OPTIONS (schema_name 'S 1', table_name 'T 3 partition(ptb1)'); --ERR EXPLAIN (VERBOSE, COSTS OFF)select * from ftx; QUERY PLAN --------------------------------------------------------------------------------------------- Foreign Scan on public.ftx Output: c1, c2, c3 Node ID: 1 Remote SQL: SELECT c1, c2, c3 FROM "S 1"."T 3 partition(ptb1)" FDW remote plans: Node 1: EXPLAIN (VERBOSE ON, COSTS OFF) SELECT c1, c2, c3 FROM "S 1"."T 3 partition(ptb1)" failed to get remote plan, error massage is: relation "S 1.T 3 partition(ptb1)" does not exist on datanode1 (10 rows) select * from ftx; ERROR: relation "S 1.T 3 partition(ptb1)" does not exist on datanode1 CONTEXT: Remote SQL command: SELECT c1, c2, c3 FROM "S 1"."T 3 partition(ptb1)" DROP FOREIGN TABLE ftx; -- ====================================================================================================================================== -- TEST-MODULE: clean up all the test data -- -------------------------------------- -- heihei! -- ====================================================================================================================================== \c regression drop database postgresfdw_test_db_partition;