diff options
Diffstat (limited to 'mysql-test/r/merge.result')
| -rw-r--r-- | mysql-test/r/merge.result | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/mysql-test/r/merge.result b/mysql-test/r/merge.result index 5755033190b..f71626221cb 100644 --- a/mysql-test/r/merge.result +++ b/mysql-test/r/merge.result @@ -651,3 +651,28 @@ ERROR HY000: You can't specify target table 't1' for update in FROM clause create table t3 engine=merge union=(t1, t2) select * from t2; ERROR HY000: You can't specify target table 't2' for update in FROM clause drop table t1, t2; +create table t1 (a int,b int,c int, index (a,b,c)); +create table t2 (a int,b int,c int, index (a,b,c)); +create table t3 (a int,b int,c int, index (a,b,c)) +engine=merge union=(t1 ,t2); +insert into t1 (a,b,c) values (1,1,0),(1,2,0); +insert into t2 (a,b,c) values (1,1,1),(1,2,1); +explain select a,b,c from t3 force index (a) where a=1 order by a,b,c; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t3 ref a a 5 const 2 Using where; Using index +select a,b,c from t3 force index (a) where a=1 order by a,b,c; +a b c +1 1 0 +1 1 1 +1 2 0 +1 2 1 +explain select a,b,c from t3 force index (a) where a=1 order by a desc, b desc, c desc; +id select_type table type possible_keys key key_len ref rows Extra +1 SIMPLE t3 ref a a 5 const 2 Using where; Using index +select a,b,c from t3 force index (a) where a=1 order by a desc, b desc, c desc; +a b c +1 2 1 +1 2 0 +1 1 1 +1 1 0 +drop table t1, t2, t3; |