diff options
Diffstat (limited to 'mysql-test/r/subselect_sj.result')
| -rw-r--r-- | mysql-test/r/subselect_sj.result | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/mysql-test/r/subselect_sj.result b/mysql-test/r/subselect_sj.result index 9f37dbf4e04..b0ded6e04e6 100644 --- a/mysql-test/r/subselect_sj.result +++ b/mysql-test/r/subselect_sj.result @@ -2094,4 +2094,28 @@ a 5 set optimizer_switch= @tmp_otimizer_switch; DROP TABLE t1,t2,t3; +# +# Bug #901312: materialized semijoin + right join +# +CREATE TABLE t1 (a int); +INSERT INTO t1 VALUES (4), (1); +CREATE TABLE t2 (b int); +INSERT INTO t2 VALUES (4), (1); +CREATE TABLE t3 (c int); +INSERT INTO t3 VALUES (4), (1); +set @tmp_otimizer_switch= @@optimizer_switch; +SET SESSION optimizer_switch='semijoin=on,materialization=on'; +EXPLAIN +SELECT * FROM t1 RIGHT JOIN t2 ON b = a WHERE t2.b IN (SELECT c FROM t3); +id select_type table type possible_keys key key_len ref rows Extra +1 PRIMARY t2 ALL NULL NULL NULL NULL 2 +1 PRIMARY <subquery2> eq_ref distinct_key distinct_key 5 func 1 +1 PRIMARY t1 ALL NULL NULL NULL NULL 2 Using where +2 MATERIALIZED t3 ALL NULL NULL NULL NULL 2 +SELECT * FROM t1 RIGHT JOIN t2 ON b = a WHERE t2.b IN (SELECT c FROM t3); +a b +4 4 +1 1 +set optimizer_switch= @tmp_otimizer_switch; +DROP TABLE t1,t2,t3; set optimizer_switch=@subselect_sj_tmp; |