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Bug #31157: crash when select+order by the avg of some field within the group by

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The uncacheable flag should be set at fix_fields() stage.
Fixed by moving the flag setting to match the one in 5.1
This commit is contained in:
gkodinov/kgeorge@magare.gmz 2007-10-19 15:43:19 +03:00
parent 5f5b7cc311
commit fb640797b8
4 changed files with 40 additions and 1 deletions
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14
mysql-test/r/query_cache.result
View File

@ -1732,4 +1732,18 @@ Variable_name Value
Qcache_queries_in_cache 1
drop database db2;
drop database db3;
CREATE TABLE t1 (a ENUM('rainbow'));
INSERT INTO t1 VALUES (),(),(),(),();
SELECT 1 FROM t1 GROUP BY (SELECT 1 FROM t1 ORDER BY AVG(LAST_INSERT_ID()));
1
1
DROP TABLE t1;
CREATE TABLE t1 (a LONGBLOB);
INSERT INTO t1 SET a = 'aaaa';
INSERT INTO t1 SET a = 'aaaa';
SELECT 1 FROM t1 GROUP BY
(SELECT LAST_INSERT_ID() FROM t1 ORDER BY MIN(a) ASC LIMIT 1);
1
1
DROP TABLE t1;
End of 5.1 tests

17
mysql-test/t/query_cache.test
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@ -1333,4 +1333,21 @@ show status like 'Qcache_queries_in_cache';
drop database db2;
drop database db3;
#
# Bug #31157: Crash when select+order by the avg of some field within the
# group by
#
CREATE TABLE t1 (a ENUM('rainbow'));
INSERT INTO t1 VALUES (),(),(),(),();
SELECT 1 FROM t1 GROUP BY (SELECT 1 FROM t1 ORDER BY AVG(LAST_INSERT_ID()));
DROP TABLE t1;
CREATE TABLE t1 (a LONGBLOB);
INSERT INTO t1 SET a = 'aaaa';
INSERT INTO t1 SET a = 'aaaa';
SELECT 1 FROM t1 GROUP BY
(SELECT LAST_INSERT_ID() FROM t1 ORDER BY MIN(a) ASC LIMIT 1);
DROP TABLE t1;
--echo End of 5.1 tests

9
sql/item_func.cc
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@ -3624,10 +3624,17 @@ longlong Item_func_last_insert_id::val_int()
thd->first_successful_insert_id_in_prev_stmt= value;
return value;
}
thd->lex->uncacheable(UNCACHEABLE_SIDEEFFECT);
return thd->read_first_successful_insert_id_in_prev_stmt();
}
bool Item_func_last_insert_id::fix_fields(THD *thd, Item **ref)
{
thd->lex->uncacheable(UNCACHEABLE_SIDEEFFECT);
return Item_int_func::fix_fields(thd, ref);
}
/* This function is just used to test speed of different functions */
longlong Item_func_benchmark::val_int()

1
sql/item_func.h
View File

@ -935,6 +935,7 @@ public:
if (arg_count)
max_length= args[0]->max_length;
}
bool fix_fields(THD *thd, Item **ref);
};