292 lines
9.8 KiB
SQL
292 lines
9.8 KiB
SQL
--
|
|
-- CREATE_VIEW
|
|
-- Virtual class definitions
|
|
-- (this also tests the query rewrite system)
|
|
--
|
|
|
|
CREATE VIEW street AS
|
|
SELECT r.name, r.thepath, c.cname AS cname
|
|
FROM ONLY road r, real_city c
|
|
WHERE c.outline ## r.thepath;
|
|
|
|
CREATE VIEW iexit AS
|
|
SELECT ih.name, ih.thepath,
|
|
interpt_pp(ih.thepath, r.thepath) AS exit
|
|
FROM ihighway ih, ramp r
|
|
WHERE ih.thepath ## r.thepath;
|
|
|
|
CREATE VIEW toyemp AS
|
|
SELECT name, age, location, 12*salary AS annualsal
|
|
FROM emp;
|
|
|
|
-- Test comments
|
|
COMMENT ON VIEW noview IS 'no view';
|
|
COMMENT ON VIEW toyemp IS 'is a view';
|
|
COMMENT ON VIEW toyemp IS NULL;
|
|
|
|
--
|
|
-- CREATE OR REPLACE VIEW
|
|
--
|
|
|
|
CREATE TABLE viewtest_tbl (a int, b int);
|
|
COPY viewtest_tbl FROM stdin;
|
|
5 10
|
|
10 15
|
|
15 20
|
|
20 25
|
|
\.
|
|
|
|
CREATE OR REPLACE VIEW viewtest AS
|
|
SELECT * FROM viewtest_tbl;
|
|
|
|
CREATE OR REPLACE VIEW viewtest AS
|
|
SELECT * FROM viewtest_tbl WHERE a > 10;
|
|
|
|
SELECT * FROM viewtest;
|
|
|
|
CREATE OR REPLACE VIEW viewtest AS
|
|
SELECT a, b FROM viewtest_tbl WHERE a > 5 ORDER BY b DESC;
|
|
|
|
SELECT * FROM viewtest;
|
|
|
|
-- should fail
|
|
CREATE OR REPLACE VIEW viewtest AS
|
|
SELECT a FROM viewtest_tbl WHERE a <> 20;
|
|
|
|
-- should fail
|
|
CREATE OR REPLACE VIEW viewtest AS
|
|
SELECT 1, * FROM viewtest_tbl;
|
|
|
|
-- should fail
|
|
CREATE OR REPLACE VIEW viewtest AS
|
|
SELECT a, b::numeric FROM viewtest_tbl;
|
|
|
|
-- should work
|
|
CREATE OR REPLACE VIEW viewtest AS
|
|
SELECT a, b, 0 AS c FROM viewtest_tbl;
|
|
|
|
DROP VIEW viewtest;
|
|
DROP TABLE viewtest_tbl;
|
|
|
|
-- tests for temporary views
|
|
|
|
CREATE SCHEMA temp_view_test
|
|
CREATE TABLE base_table (a int, id int)
|
|
CREATE TABLE base_table2 (a int, id int);
|
|
|
|
SET search_path TO temp_view_test, public;
|
|
|
|
CREATE TEMPORARY TABLE temp_table (a int, id int);
|
|
|
|
-- should be created in temp_view_test schema
|
|
CREATE VIEW v1 AS SELECT * FROM base_table;
|
|
-- should be created in temp object schema
|
|
CREATE VIEW v1_temp AS SELECT * FROM temp_table;
|
|
-- should be created in temp object schema
|
|
CREATE TEMP VIEW v2_temp AS SELECT * FROM base_table;
|
|
-- should be created in temp_views schema
|
|
CREATE VIEW temp_view_test.v2 AS SELECT * FROM base_table;
|
|
-- should fail
|
|
CREATE VIEW temp_view_test.v3_temp AS SELECT * FROM temp_table;
|
|
-- should fail
|
|
CREATE SCHEMA test_schema
|
|
CREATE TEMP VIEW testview AS SELECT 1;
|
|
|
|
-- joins: if any of the join relations are temporary, the view
|
|
-- should also be temporary
|
|
|
|
-- should be non-temp
|
|
CREATE VIEW v3 AS
|
|
SELECT t1.a AS t1_a, t2.a AS t2_a
|
|
FROM base_table t1, base_table2 t2
|
|
WHERE t1.id = t2.id;
|
|
-- should be temp (one join rel is temp)
|
|
CREATE VIEW v4_temp AS
|
|
SELECT t1.a AS t1_a, t2.a AS t2_a
|
|
FROM base_table t1, temp_table t2
|
|
WHERE t1.id = t2.id;
|
|
-- should be temp
|
|
CREATE VIEW v5_temp AS
|
|
SELECT t1.a AS t1_a, t2.a AS t2_a, t3.a AS t3_a
|
|
FROM base_table t1, base_table2 t2, temp_table t3
|
|
WHERE t1.id = t2.id and t2.id = t3.id;
|
|
|
|
-- subqueries
|
|
CREATE VIEW v4 AS SELECT * FROM base_table WHERE id IN (SELECT id FROM base_table2);
|
|
CREATE VIEW v5 AS SELECT t1.id, t2.a FROM base_table t1, (SELECT * FROM base_table2) t2;
|
|
CREATE VIEW v6 AS SELECT * FROM base_table WHERE EXISTS (SELECT 1 FROM base_table2);
|
|
CREATE VIEW v7 AS SELECT * FROM base_table WHERE NOT EXISTS (SELECT 1 FROM base_table2);
|
|
CREATE VIEW v8 AS SELECT * FROM base_table WHERE EXISTS (SELECT 1);
|
|
|
|
CREATE VIEW v6_temp AS SELECT * FROM base_table WHERE id IN (SELECT id FROM temp_table);
|
|
CREATE VIEW v7_temp AS SELECT t1.id, t2.a FROM base_table t1, (SELECT * FROM temp_table) t2;
|
|
CREATE VIEW v8_temp AS SELECT * FROM base_table WHERE EXISTS (SELECT 1 FROM temp_table);
|
|
CREATE VIEW v9_temp AS SELECT * FROM base_table WHERE NOT EXISTS (SELECT 1 FROM temp_table);
|
|
|
|
-- a view should also be temporary if it references a temporary view
|
|
CREATE VIEW v10_temp AS SELECT * FROM v7_temp;
|
|
CREATE VIEW v11_temp AS SELECT t1.id, t2.a FROM base_table t1, v10_temp t2;
|
|
CREATE VIEW v12_temp AS SELECT true FROM v11_temp;
|
|
|
|
-- a view should also be temporary if it references a temporary sequence
|
|
CREATE SEQUENCE seq1;
|
|
CREATE TEMPORARY SEQUENCE seq1_temp;
|
|
CREATE VIEW v9 AS SELECT seq1.is_called FROM seq1;
|
|
CREATE VIEW v13_temp AS SELECT seq1_temp.is_called FROM seq1_temp;
|
|
|
|
SELECT relname FROM pg_class
|
|
WHERE relname LIKE 'v_'
|
|
AND relnamespace = (SELECT oid FROM pg_namespace WHERE nspname = 'temp_view_test')
|
|
ORDER BY relname;
|
|
SELECT relname FROM pg_class
|
|
WHERE relname LIKE 'v%'
|
|
AND relnamespace IN (SELECT oid FROM pg_namespace WHERE nspname LIKE 'pg_temp%')
|
|
ORDER BY relname;
|
|
|
|
CREATE SCHEMA testviewschm2;
|
|
SET search_path TO testviewschm2, public;
|
|
|
|
CREATE TABLE t1 (num int, name text);
|
|
CREATE TABLE t2 (num2 int, value text);
|
|
CREATE TEMP TABLE tt (num2 int, value text);
|
|
|
|
CREATE VIEW nontemp1 AS SELECT * FROM t1 CROSS JOIN t2;
|
|
CREATE VIEW temporal1 AS SELECT * FROM t1 CROSS JOIN tt;
|
|
CREATE VIEW nontemp2 AS SELECT * FROM t1 INNER JOIN t2 ON t1.num = t2.num2;
|
|
CREATE VIEW temporal2 AS SELECT * FROM t1 INNER JOIN tt ON t1.num = tt.num2;
|
|
CREATE VIEW nontemp3 AS SELECT * FROM t1 LEFT JOIN t2 ON t1.num = t2.num2;
|
|
CREATE VIEW temporal3 AS SELECT * FROM t1 LEFT JOIN tt ON t1.num = tt.num2;
|
|
CREATE VIEW nontemp4 AS SELECT * FROM t1 LEFT JOIN t2 ON t1.num = t2.num2 AND t2.value = 'xxx';
|
|
CREATE VIEW temporal4 AS SELECT * FROM t1 LEFT JOIN tt ON t1.num = tt.num2 AND tt.value = 'xxx';
|
|
|
|
SELECT relname FROM pg_class
|
|
WHERE relname LIKE 'nontemp%'
|
|
AND relnamespace = (SELECT oid FROM pg_namespace WHERE nspname = 'testviewschm2')
|
|
ORDER BY relname;
|
|
SELECT relname FROM pg_class
|
|
WHERE relname LIKE 'temporal%'
|
|
AND relnamespace IN (SELECT oid FROM pg_namespace WHERE nspname LIKE 'pg_temp%')
|
|
ORDER BY relname;
|
|
|
|
CREATE TABLE tbl1 ( a int, b int);
|
|
CREATE TABLE tbl2 (c int, d int);
|
|
CREATE TABLE tbl3 (e int, f int);
|
|
CREATE TABLE tbl4 (g int, h int);
|
|
CREATE TEMP TABLE tmptbl (i int, j int);
|
|
|
|
--Should be in testviewschm2
|
|
CREATE VIEW pubview AS SELECT * FROM tbl1 WHERE tbl1.a
|
|
BETWEEN (SELECT d FROM tbl2 WHERE c = 1) AND (SELECT e FROM tbl3 WHERE f = 2)
|
|
AND EXISTS (SELECT g FROM tbl4 LEFT JOIN tbl3 ON tbl4.h = tbl3.f);
|
|
|
|
SELECT count(*) FROM pg_class where relname = 'pubview'
|
|
AND relnamespace IN (SELECT OID FROM pg_namespace WHERE nspname = 'testviewschm2');
|
|
|
|
--Should be in temp object schema
|
|
CREATE VIEW mytempview AS SELECT * FROM tbl1 WHERE tbl1.a
|
|
BETWEEN (SELECT d FROM tbl2 WHERE c = 1) AND (SELECT e FROM tbl3 WHERE f = 2)
|
|
AND EXISTS (SELECT g FROM tbl4 LEFT JOIN tbl3 ON tbl4.h = tbl3.f)
|
|
AND NOT EXISTS (SELECT g FROM tbl4 LEFT JOIN tmptbl ON tbl4.h = tmptbl.j);
|
|
|
|
SELECT count(*) FROM pg_class where relname LIKE 'mytempview'
|
|
And relnamespace IN (SELECT OID FROM pg_namespace WHERE nspname LIKE 'pg_temp%');
|
|
|
|
--
|
|
-- CREATE VIEW and WITH(...) clause
|
|
--
|
|
CREATE VIEW mysecview1
|
|
AS SELECT * FROM tbl1 WHERE a = 0;
|
|
CREATE VIEW mysecview2 WITH (security_barrier=true)
|
|
AS SELECT * FROM tbl1 WHERE a > 0;
|
|
CREATE VIEW mysecview3 WITH (security_barrier=false)
|
|
AS SELECT * FROM tbl1 WHERE a < 0;
|
|
CREATE VIEW mysecview4 WITH (security_barrier)
|
|
AS SELECT * FROM tbl1 WHERE a <> 0;
|
|
CREATE VIEW mysecview5 WITH (security_barrier=100) -- Error
|
|
AS SELECT * FROM tbl1 WHERE a > 100;
|
|
CREATE VIEW mysecview6 WITH (invalid_option) -- Error
|
|
AS SELECT * FROM tbl1 WHERE a < 100;
|
|
SELECT relname, relkind, reloptions FROM pg_class
|
|
WHERE oid in ('mysecview1'::regclass, 'mysecview2'::regclass,
|
|
'mysecview3'::regclass, 'mysecview4'::regclass)
|
|
ORDER BY relname;
|
|
|
|
CREATE OR REPLACE VIEW mysecview1
|
|
AS SELECT * FROM tbl1 WHERE a = 256;
|
|
CREATE OR REPLACE VIEW mysecview2
|
|
AS SELECT * FROM tbl1 WHERE a > 256;
|
|
CREATE OR REPLACE VIEW mysecview3 WITH (security_barrier=true)
|
|
AS SELECT * FROM tbl1 WHERE a < 256;
|
|
CREATE OR REPLACE VIEW mysecview4 WITH (security_barrier=false)
|
|
AS SELECT * FROM tbl1 WHERE a <> 256;
|
|
SELECT relname, relkind, reloptions FROM pg_class
|
|
WHERE oid in ('mysecview1'::regclass, 'mysecview2'::regclass,
|
|
'mysecview3'::regclass, 'mysecview4'::regclass)
|
|
ORDER BY relname;
|
|
|
|
-- This test checks that proper typmods are assigned in a multi-row VALUES
|
|
|
|
CREATE VIEW tt1 AS
|
|
SELECT * FROM (
|
|
VALUES
|
|
('abc'::varchar(3), '0123456789', 42, 'abcd'::varchar(4)),
|
|
('0123456789', 'abc'::varchar(3), 42.12, 'abc'::varchar(4))
|
|
) vv(a,b,c,d);
|
|
\d+ tt1
|
|
SELECT * FROM tt1;
|
|
SELECT a::varchar(3) FROM tt1;
|
|
DROP VIEW tt1;
|
|
|
|
-- check display of whole-row variables in some corner cases
|
|
|
|
create type nestedcomposite as (x int8_tbl);
|
|
create view tt15v as select row(i)::nestedcomposite from int8_tbl i;
|
|
select * from tt15v;
|
|
select pg_get_viewdef('tt15v', true);
|
|
select row(i.*::int8_tbl)::nestedcomposite from int8_tbl i;
|
|
|
|
create view tt17v as select * from int8_tbl i where i in (values(i));
|
|
select * from tt17v;
|
|
select pg_get_viewdef('tt17v', true);
|
|
select * from int8_tbl i where i.* in (values(i.*::int8_tbl));
|
|
|
|
-- check display of ScalarArrayOp with a sub-select
|
|
|
|
select 'foo'::text = any(array['abc','def','foo']::text[]);
|
|
select 'foo'::text = any((select array['abc','def','foo']::text[])); -- fail
|
|
select 'foo'::text = any((select array['abc','def','foo']::text[])::text[]);
|
|
|
|
create view tt19v as
|
|
select 'foo'::text = any(array['abc','def','foo']::text[]) c1,
|
|
'foo'::text = any((select array['abc','def','foo']::text[])::text[]) c2;
|
|
select pg_get_viewdef('tt19v', true);
|
|
|
|
-- check display of assorted RTE_FUNCTION expressions
|
|
|
|
create view tt20v as
|
|
select * from
|
|
coalesce(1,2) as c,
|
|
collation for ('x'::text) col,
|
|
current_date as d,
|
|
cast(1+2 as int4) as i4,
|
|
cast(1+2 as int8) as i8;
|
|
select pg_get_viewdef('tt20v', true);
|
|
|
|
-- check handling of views with immediately-renamed columns
|
|
|
|
create view tt23v (col_a, col_b) as
|
|
select q1 as other_name1, q2 as other_name2 from int8_tbl
|
|
union
|
|
select 42, 43;
|
|
|
|
select pg_get_viewdef('tt23v', true);
|
|
select pg_get_ruledef(oid, true) from pg_rewrite
|
|
where ev_class = 'tt23v'::regclass and ev_type = '1';
|
|
|
|
-- clean up all the random objects we made above
|
|
set client_min_messages = warning;
|
|
DROP SCHEMA temp_view_test CASCADE;
|
|
DROP SCHEMA testviewschm2 CASCADE;
|
|
|
|
SET search_path to public;
|