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A fix and a test case for Bug#12736 "Server crash during a select".

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The bug was in JOIN::join_free which was wrongly determining that
all joins have been already executed and therefore all used tables
can be closed.
This commit is contained in:
konstantin@mysql.com
2005-10-13 11:53:00 +04:00
parent 2c7505b263
commit b2ff38202d
8 changed files with 151 additions and 14 deletions
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7
sql/sql_lex.h
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@ -386,12 +386,12 @@ protected:
select_result *result;
ulong found_rows_for_union;
bool res;
public:
bool prepared, // prepare phase already performed for UNION (unit)
optimized, // optimize phase already performed for UNION (unit)
executed, // already executed
cleaned;
public:
// list of fields which points to temporary table for union
List<Item> item_list;
/*
@ -638,6 +638,11 @@ public:
SELECT_LEX and all nested SELECT_LEXes and SELECT_LEX_UNITs).
*/
bool cleanup();
/*
Recursively cleanup the join of this select lex and of all nested
select lexes.
*/
void cleanup_all_joins(bool full);
};
typedef class st_select_lex SELECT_LEX;