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| author | Sergey Glukhov <Sergey.Glukhov@sun.com> | 2009-09-04 12:20:53 +0500 |
|---|---|---|
| committer | Sergey Glukhov <Sergey.Glukhov@sun.com> | 2009-09-04 12:20:53 +0500 |
| commit | 643fbe4234a06e51746c8912223652a3b41fe133 (patch) | |
| tree | 9f1ce478e9b8d35b3a8e3fe1a4d30d0135797c3c /mysql-test/t/explain.test | |
| parent | 6e27ef435e3863382295f1a1d41424c9b8d4c197 (diff) | |
| download | mariadb-git-643fbe4234a06e51746c8912223652a3b41fe133.tar.gz | |
Bug#45989 memory leak after explain encounters an error in the query
Memory allocated in TMP_TABLE_PARAM::copy_field is not cleaned up.
The fix is to clean up TMP_TABLE_PARAM::copy_field array in JOIN::destroy.
mysql-test/r/explain.result:
test result
mysql-test/t/explain.test:
test case
sql/sql_select.cc:
Memory allocated in TMP_TABLE_PARAM::copy_field is not cleaned up.
The fix is to clean up TMP_TABLE_PARAM::copy_field array in JOIN::destroy.
Diffstat (limited to 'mysql-test/t/explain.test')
| -rw-r--r-- | mysql-test/t/explain.test | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/mysql-test/t/explain.test b/mysql-test/t/explain.test index 1bc98a8acb1..7b7bdd3563c 100644 --- a/mysql-test/t/explain.test +++ b/mysql-test/t/explain.test @@ -135,5 +135,16 @@ EXPLAIN EXTENDED SELECT COUNT(a) FROM t1 USE KEY(a); DROP TABLE t1; +# +# Bug#45989 memory leak after explain encounters an error in the query +# +CREATE TABLE t1(a LONGTEXT); +INSERT INTO t1 VALUES (repeat('a',@@global.max_allowed_packet)); +INSERT INTO t1 VALUES (repeat('b',@@global.max_allowed_packet)); +--error ER_BAD_FIELD_ERROR +EXPLAIN SELECT DISTINCT 1 FROM t1, + (SELECT DISTINCTROW a AS away FROM t1 GROUP BY a WITH ROLLUP) as d1 + WHERE t1.a = d1.a; +DROP TABLE t1; # End of 5.0 tests. |