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Merge epotemkin@bk-internal.mysql.com:/home/bk/mysql-5.1-opt

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into  sunlight.local:/local_work/tmp_merge-5.1-opt-mysql
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evgen@sunlight.local
2006-08-01 09:24:19 +04:00
parent 799ecc9f2a 6056f7714e
commit dda7a95c59
76 changed files with 937 additions and 679 deletions
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18
mysql-test/r/union.result
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@@ -83,10 +83,10 @@ a b
(select a,b from t1 limit 2) union all (select a,b from t2 order by a limit 1) order by t1.b;
ERROR 42000: Table 't1' from one of the SELECTs cannot be used in global ORDER clause
explain extended (select a,b from t1 limit 2) union all (select a,b from t2 order by a limit 1) order by b desc;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 4
2 UNION t2 ALL NULL NULL NULL NULL 4 Using filesort
NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL Using filesort
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 ALL NULL NULL NULL NULL 4 100.00
2 UNION t2 ALL NULL NULL NULL NULL 4 100.00 Using filesort
NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL NULL Using filesort
Warnings:
Note 1003 (select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` limit 2) union all (select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` order by `test`.`t2`.`a` limit 1) order by `b` desc
(select sql_calc_found_rows a,b from t1 limit 2) union all (select a,b from t2 order by a) limit 2;
@@ -475,10 +475,10 @@ create table t2 (a int not null primary key auto_increment, b int);
insert into t1 (b) values (1),(2),(2),(3);
insert into t2 (b) values (10),(11),(12),(13);
explain extended (select * from t1 where a=1) union (select * from t2 where a=1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY t1 const PRIMARY PRIMARY 4 const 1
2 UNION t2 const PRIMARY PRIMARY 4 const 1
NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL
id select_type table type possible_keys key key_len ref rows filtered Extra
1 PRIMARY t1 const PRIMARY PRIMARY 4 const 1 100.00
2 UNION t2 const PRIMARY PRIMARY 4 const 1 100.00
NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL NULL
Warnings:
Note 1003 (select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b` from `test`.`t1` where (`test`.`t1`.`a` = 1)) union (select `test`.`t2`.`a` AS `a`,`test`.`t2`.`b` AS `b` from `test`.`t2` where (`test`.`t2`.`a` = 1))
(select * from t1 where a=5) union (select * from t2 where a=1);
@@ -500,7 +500,7 @@ explain (select * from t1 where a=1 and b=10) union (select straight_join t1.a,t
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
2 UNION t1 index PRIMARY PRIMARY 4 NULL 4 Using index
2 UNION t2 index PRIMARY PRIMARY 4 NULL 3 Using where; Using index
2 UNION t2 index PRIMARY PRIMARY 4 NULL 4 Using where; Using index
NULL UNION RESULT <union1,2> ALL NULL NULL NULL NULL NULL
explain (select * from t1 where a=1) union (select * from t1 where b=1);
id select_type table type possible_keys key key_len ref rows Extra