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The main patch for MWL#128: Implement Block Nested Loop Hash Join.

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This commit is contained in:
Igor Babaev 2010-08-31 09:34:21 -07:00
commit 94cfcbd9df
32 changed files with 4621 additions and 1979 deletions
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15
mysql-test/t/subselect3.test Normal file → Executable file
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@ -2,6 +2,8 @@
drop table if exists t0, t1, t2, t3, t4, t5, t11, t12, t21, t22;
--enable_warnings
set @save_optimizer_switch=@@optimizer_switch;
#
# 1. Subquery with GROUP/HAVING
#
@ -888,7 +890,7 @@ set @@optimizer_switch='firstmatch=off';
explain
select (select max(Y.a) from t1 Y where a in (select a from t1 Z) and a < X.a) as subq from t1 X;
select (select max(Y.a) from t1 Y where a in (select a from t1 Z) and a < X.a) as subq from t1 X;
set @@optimizer_switch=default;
set @@optimizer_switch=@save_optimizer_switch;
drop table t1;
@ -906,7 +908,7 @@ select * from t1 where 2 in (select a from t0);
set @@optimizer_switch='default,materialization=off';
explain select * from t1 where 2 in (select a from t0);
select * from t1 where 2 in (select a from t0);
set @@optimizer_switch=default;
set @@optimizer_switch=@save_optimizer_switch;
#
@ -952,7 +954,7 @@ flush status;
select count(*) from t0 A, t0 B, t0 C, t0 D where D.a in (select a from t1 E);
show status like 'Created_tmp_disk_tables';
set @save_max_heap_table_size=@@max_heap_table_size;
set @@optimizer_switch=default;
set @@optimizer_switch=@save_optimizer_switch;
drop table t0, t1;
#
@ -990,7 +992,7 @@ create table t1 (a decimal);
insert into t1 values (1),(2);
explain select * from t1 where a in (select a from t1);
drop table t1;
set @@optimizer_switch=default;
set @@optimizer_switch=@save_optimizer_switch;
#
# SJ-Materialization-scan for non-first table
@ -1051,7 +1053,7 @@ set @save_optimizer_search_depth=@@optimizer_search_depth;
set @@optimizer_search_depth=63;
explain select * from t1 where (a,b) in (select a,b from t2);
set @@optimizer_search_depth=@save_optimizer_search_depth;
set @@optimizer_switch=default;
set @@optimizer_switch=@save_optimizer_switch;
drop table t0, t1, t2;
@ -1181,3 +1183,6 @@ ALTER TABLE t2 CHANGE COLUMN f1 my_column INT;
CALL p1;
DROP PROCEDURE p1;
DROP TABLE t1, t2;
# The following command must be the last one the file
set @@optimizer_switch=@save_optimizer_switch;