diff options
Diffstat (limited to 'mysql-test/r/derived_view.result')
| -rw-r--r-- | mysql-test/r/derived_view.result | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/mysql-test/r/derived_view.result b/mysql-test/r/derived_view.result index 9849068c894..0a80a16b508 100644 --- a/mysql-test/r/derived_view.result +++ b/mysql-test/r/derived_view.result @@ -2500,5 +2500,90 @@ DROP TABLE t1,t2; # # end of 5.3 tests # +# +# Bug mdev-11161: The second execution of prepared statement +# does not use generated key for materialized +# derived table / view +# (actually this is a 5.3 bug.) +# +create table t1 ( +mat_id MEDIUMINT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY, +matintnum CHAR(6) NOT NULL, +test MEDIUMINT UNSIGNED NULL +); +create table t2 ( +mat_id MEDIUMINT UNSIGNED NOT NULL, +pla_id MEDIUMINT UNSIGNED NOT NULL +); +insert into t1 values +(NULL, 'a', 1), (NULL, 'b', 2), (NULL, 'c', 3), (NULL, 'd', 4), +(NULL, 'e', 5), (NULL, 'f', 6), (NULL, 'g', 7), (NULL, 'h', 8), +(NULL, 'i', 9); +insert into t2 values +(1, 100), (1, 101), (1, 102), (2, 100), (2, 103), (2, 104), +(3, 101), (3, 102), (3, 105); +explain +SELECT STRAIGHT_JOIN d.pla_id, m2.mat_id +FROM t1 m2 +INNER JOIN +(SELECT mp.pla_id, MIN(m1.matintnum) AS matintnum +FROM t2 mp INNER JOIN t1 m1 ON mp.mat_id=m1.mat_id +GROUP BY mp.pla_id) d +ON d.matintnum=m2.matintnum; +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY m2 ALL NULL NULL NULL NULL 9 +1 PRIMARY <derived2> ref key0 key0 7 test.m2.matintnum 2 +2 DERIVED mp ALL NULL NULL NULL NULL 9 Using temporary; Using filesort +2 DERIVED m1 eq_ref PRIMARY PRIMARY 3 test.mp.mat_id 1 +prepare stmt1 from +"SELECT STRAIGHT_JOIN d.pla_id, m2.mat_id + FROM t1 m2 + INNER JOIN + (SELECT mp.pla_id, MIN(m1.matintnum) AS matintnum + FROM t2 mp INNER JOIN t1 m1 ON mp.mat_id=m1.mat_id + GROUP BY mp.pla_id) d + ON d.matintnum=m2.matintnum"; +flush status; +execute stmt1; +pla_id mat_id +102 1 +101 1 +100 1 +104 2 +103 2 +105 3 +show status like '%Handler_read%'; +Variable_name Value +Handler_read_first 0 +Handler_read_key 21 +Handler_read_last 0 +Handler_read_next 6 +Handler_read_prev 0 +Handler_read_retry 0 +Handler_read_rnd 6 +Handler_read_rnd_deleted 0 +Handler_read_rnd_next 27 +flush status; +execute stmt1; +pla_id mat_id +102 1 +101 1 +100 1 +104 2 +103 2 +105 3 +show status like '%Handler_read%'; +Variable_name Value +Handler_read_first 0 +Handler_read_key 21 +Handler_read_last 0 +Handler_read_next 6 +Handler_read_prev 0 +Handler_read_retry 0 +Handler_read_rnd 6 +Handler_read_rnd_deleted 0 +Handler_read_rnd_next 27 +deallocate prepare stmt1; +drop table t1,t2; set optimizer_switch=@exit_optimizer_switch; set join_cache_level=@exit_join_cache_level; |