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Fixed bug mdev-4944.

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The patch to fix mdev-4418 turned out to be incorrect.
At the substitution of single row tables in make_join_statistics()
the used multiple equalities may change and references to the new multiple
equalities must be updated. The function remove_eq_conds() takes care of it and
it should be called right after the substitution of single row tables.
Calling it after the call of make_join_statistics was a mistake.
This commit is contained in:
Igor Babaev
2013-08-26 12:55:58 -07:00
parent dbc84ff96c
commit 901737c978
14 changed files with 107 additions and 19 deletions
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5
sql/sql_select.h
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@ -1139,6 +1139,11 @@ public:
bool need_tmp, hidden_group_fields;
DYNAMIC_ARRAY keyuse;
Item::cond_result cond_value, having_value;
/**
Impossible where after reading const tables
(set in make_join_statistics())
*/
bool impossible_where;
List<Item> all_fields; ///< to store all fields that used in query
///Above list changed to use temporary table
List<Item> tmp_all_fields1, tmp_all_fields2, tmp_all_fields3;