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Backport of subquery optimizations to 5.3.

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There are still test failures because of:
- Wrong query results in outer join + semi join
- EXPLAIN output differences
This commit is contained in:
Sergey Petrunya
2010-01-17 17:51:10 +03:00
parent 1a490f2da4
commit b83cb52e9e
57 changed files with 30727 additions and 504 deletions
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mysql-test/r/myisam_mrr.result
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@ -394,7 +394,7 @@ drop table t0, t1;
# - engine_condition_pushdown does not affect ICP
select @@optimizer_switch;
@@optimizer_switch
index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_condition_pushdown=on
index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_condition_pushdown=on,firstmatch=on,loosescan=on,materialization=on,semijoin=on
create table t0 (a int);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t1 (a int, b int, key(a));