hcq/oceanbase
1
0
Fork 0
Code Issues Pull Requests Actions 2 Packages Projects Releases Wiki Activity

add a check rule when trigger groupby pullup

Browse Source
This commit is contained in:
ChangerR
2023-05-15 10:11:40 +00:00
committed by ob-robot
parent dbaf4e2210
commit 2f6eea23d6
14 changed files with 369 additions and 73 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
tools/deploy/mysql_test/test_suite/px/r/mysql/alloc_material_for_producer_consumer_schedule_mode.result
View File

@ -1,6 +1,8 @@
drop table if exists t1, t2;
create table t1 (c1 int, c2 int, c3 int);
create table t2 (c1 int, c2 int, c3 int);
call dbms_stats.gather_table_stats(NULL, 't1');
call dbms_stats.gather_table_stats(NULL, 't2');
explain select /*+ use_px parallel(2) use_hash(c d) */ * from (select a.c2, b.c3 from (select /*+ use_hash(a, b) */ c1, c2, count(*) c3 from t1 group by 1, 2) a, (select c1, c2, count(*) c3 from t1 group by 1, 2) b where a.c1 = b.c1) c, (select c1, c2, count(*) c3 from t1 group by 1, 2) d where c.c2 = d.c2;
Query Plan
====================================================================================

3
tools/deploy/mysql_test/test_suite/px/t/alloc_material_for_producer_consumer_schedule_mode.test
View File

@ -10,7 +10,8 @@ drop table if exists t1, t2;
create table t1 (c1 int, c2 int, c3 int);
create table t2 (c1 int, c2 int, c3 int);
call dbms_stats.gather_table_stats(NULL, 't1');
call dbms_stats.gather_table_stats(NULL, 't2');
# need material above hash join. (but root DFO not needed)
explain select /*+ use_px parallel(2) use_hash(c d) */ * from (select a.c2, b.c3 from (select /*+ use_hash(a, b) */ c1, c2, count(*) c3 from t1 group by 1, 2) a, (select c1, c2, count(*) c3 from t1 group by 1, 2) b where a.c1 = b.c1) c, (select c1, c2, count(*) c3 from t1 group by 1, 2) d where c.c2 = d.c2;