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Subquery optimizations: non-semijoin materialization

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- Backport into Maria DB 5.3, part 1
This commit is contained in:
Sergey Petrunya
2010-01-28 16:48:33 +03:00
parent 742afd8eae
commit f47b2d38f6
12 changed files with 1119 additions and 145 deletions
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4
sql/sql_union.cc
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@ -715,8 +715,8 @@ void st_select_lex_unit::reinit_exec_mechanism()
TRUE - error
*/
bool st_select_lex_unit::change_result(select_subselect *new_result,
select_subselect *old_result)
bool st_select_lex_unit::change_result(select_result_interceptor *new_result,
select_result_interceptor *old_result)
{
bool res= FALSE;
for (SELECT_LEX *sl= first_select(); sl; sl= sl->next_select())