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Merge moonbone.local:/mnt/gentoo64/work/24989-bug-5.0-opt-mysql

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into  moonbone.local:/mnt/gentoo64/work/test-5.1-opt-mysql
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evgen@moonbone.local
2007-08-02 18:42:56 +04:00
parent d4329ea783 0233a79321
commit 9c8673de05
11 changed files with 302 additions and 34 deletions
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10
sql/sql_select.h
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@ -316,6 +316,14 @@ public:
SELECT_LEX_UNIT *unit;
// select that processed
SELECT_LEX *select_lex;
/*
TRUE <=> optimizer must not mark any table as a constant table.
This is needed for subqueries in form "a IN (SELECT .. UNION SELECT ..):
when we optimize the select that reads the results of the union from a
temporary table, we must not mark the temp. table as constant because
the number of rows in it may vary from one subquery execution to another.
*/
bool no_const_tables;
JOIN *tmp_join; // copy of this JOIN to be used with temporary tables
ROLLUP rollup; // Used with rollup
@ -445,6 +453,8 @@ public:
tmp_table_param.init();
tmp_table_param.end_write_records= HA_POS_ERROR;
rollup.state= ROLLUP::STATE_NONE;
no_const_tables= FALSE;
}
int prepare(Item ***rref_pointer_array, TABLE_LIST *tables, uint wind_num,