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Merge with 4.1

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monty@mishka.local
2004-12-22 13:54:39 +02:00
parent 198dc7a8ec 98f2a83539
commit 4f4bbfc279
395 changed files with 11807 additions and 25533 deletions
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25
mysql-test/r/merge.result
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@@ -653,3 +653,28 @@ ERROR HY000: You can't specify target table 't2' for update in FROM clause
create table t3 engine=merge union=(t1, t2) select (select max(a) 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;