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BUG#1002630: Valgrind warnings 'Invalid read' in subselect_engine::calc_const_tables with SELECT

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- In JOIN::exec(), make the having->update_used_tables() call before we've
  made the JOIN::cleanup(full=true) call. The latter frees SJ-Materialization
  structures, which correlated subquery predicate items attempt to walk afterwards.
This commit is contained in:
Sergey Petrunya
2012-05-25 01:20:40 +04:00
parent a834af8c23
commit 5b73a17b3a
4 changed files with 61 additions and 3 deletions
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17
mysql-test/t/subselect_sj.test
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@ -2445,5 +2445,22 @@ GROUP BY field1;
DROP TABLE t1,t3,t2;
--echo #
--echo # BUG#1002630: Valgrind warnings 'Invalid read' in subselect_engine::calc_const_tables with SELECT
--echo #
CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (1),(7);
CREATE TABLE t2 (b INT);
INSERT INTO t2 VALUES (4),(6);
SELECT ( SELECT SUM(a) FROM t1 ) AS t1sum, b
FROM t2
WHERE (1,1) IN ( SELECT MAX(a), MIN(a) FROM t1 )
GROUP BY b
HAVING t1sum <> 1;
DROP TABLE t1, t2;
# The following command must be the last one the file
set optimizer_switch=@subselect_sj_tmp;