diff options
Diffstat (limited to 'mysql-test/r')
| -rw-r--r-- | mysql-test/r/derived_view.result | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/mysql-test/r/derived_view.result b/mysql-test/r/derived_view.result index 28c4c362a9d..3151bb14657 100644 --- a/mysql-test/r/derived_view.result +++ b/mysql-test/r/derived_view.result @@ -1997,5 +1997,44 @@ a b gc SET SESSION optimizer_switch= @save_optimizer_switch; DROP VIEW v; DROP TABLE t1,t2; +# +# LP BUG#968720 crash due to converting to materialized and +# natural join made only once +# +SET @save968720_optimizer_switch=@@optimizer_switch; +SET optimizer_switch = 'derived_merge=on'; +CREATE TABLE t1 (a int, INDEX(a)); +INSERT INTO t1 VALUES (1); +CREATE TABLE t2 (a int, INDEX(a)); +INSERT INTO t2 VALUES (1), (2); +INSERT INTO t1 SELECT a FROM (SELECT a FROM test.t1) AS s1 NATURAL JOIN +t2 AS s2; +SELECT * FROM t1; +a +1 +1 +DELETE FROM t1; +INSERT INTO t1 VALUES (1); +PREPARE stmt FROM " +INSERT INTO t1 SELECT a FROM (SELECT a FROM test.t1) AS s1 NATURAL JOIN +t2 AS s2; +"; +EXECUTE stmt; +SELECT * FROM t1; +a +1 +1 +EXECUTE stmt; +SELECT * FROM t1; +a +1 +1 +1 +1 +drop table t1,t2; +set optimizer_switch=@save968720_optimizer_switch; +# +# end of 5.3 tests +# set optimizer_switch=@exit_optimizer_switch; set join_cache_level=@exit_join_cache_level; |