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Bug #36995: valgrind error in remove_const during subquery executions

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When copying the Item class one must copy its attributes as well.

mysql-test/r/innodb_mysql.result:
  Bug #36995: test case
mysql-test/t/innodb_mysql.test:
  Bug #36995: test case
sql/item.cc:
  Bug #36995: copy attributes in the copy constructor
This commit is contained in:
Georgi Kodinov
2009-06-04 12:52:40 +03:00
parent 8041311e24
commit a037071a75
3 changed files with 25 additions and 0 deletions
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12
mysql-test/r/innodb_mysql.result
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@ -1303,4 +1303,16 @@ t1 CREATE TABLE `t1` (
CONSTRAINT `f2_ref` FOREIGN KEY (`f2`) REFERENCES `t1` (`f1`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE t1;
#
# Bug #36995: valgrind error in remove_const during subquery executions
#
create table t1 (a bit(1) not null,b int) engine=myisam;
create table t2 (c int) engine=innodb;
explain
select b from t1 where a not in (select b from t1,t2 group by a) group by a;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
2 DEPENDENT SUBQUERY t1 system NULL NULL NULL NULL 0 const row not found
2 DEPENDENT SUBQUERY t2 ALL NULL NULL NULL NULL 1
DROP TABLE t1,t2;
End of 5.0 tests