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post-merge fix

This commit is contained in:
serg@serg.mylan
2004-11-28 19:48:41 +01:00
parent 96729c62be
commit cb538e45f5
2 changed files with 21 additions and 43 deletions

View File

@@ -2353,6 +2353,27 @@ select * from t2,t3 where t2.s = t3.s;
s s
two two
drop table t1, t2, t3;
create table t1 (a integer, b integer, index(a), index(b));
create table t2 (c integer, d integer, index(c), index(d));
insert into t1 values (1,2), (2,2), (3,2), (4,2);
insert into t2 values (1,3), (2,3), (3,4), (4,4);
explain select * from t1 left join t2 on a=c where d in (4);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ref c,d d 5 const 2 Using where
1 SIMPLE t1 ALL a NULL NULL NULL 3 Using where
select * from t1 left join t2 on a=c where d in (4);
a b c d
3 2 3 4
4 2 4 4
explain select * from t1 left join t2 on a=c where d = 4;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ref c,d d 5 const 2 Using where
1 SIMPLE t1 ALL a NULL NULL NULL 3 Using where
select * from t1 left join t2 on a=c where d = 4;
a b c d
3 2 3 4
4 2 4 4
drop table t1, t2;
CREATE TABLE t1 (
i int(11) NOT NULL default '0',
c char(10) NOT NULL default '',
@@ -2365,45 +2386,4 @@ INSERT INTO t1 VALUES (3,'c');
EXPLAIN SELECT i FROM t1 WHERE i=1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 const PRIMARY PRIMARY 4 const 1 Using index
EXPLAIN SELECT i FROM t1 WHERE i=1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 const PRIMARY PRIMARY 4 const 1 Using index
DROP TABLE t1;
create table t1 (a integer, b integer, index(a), index(b));
create table t2 (c integer, d integer, index(c), index(d));
insert into t1 values (1,2), (2,2), (3,2), (4,2);
insert into t2 values (1,3), (2,3), (3,4), (4,4);
explain select * from t1 left join t2 on a=c where d in (4);
table type possible_keys key key_len ref rows Extra
t2 ref c,d d 5 const 2 Using where
t1 ALL a NULL NULL NULL 3 Using where
select * from t1 left join t2 on a=c where d in (4);
a b c d
3 2 3 4
4 2 4 4
explain select * from t1 left join t2 on a=c where d = 4;
table type possible_keys key key_len ref rows Extra
t2 ref c,d d 5 const 2 Using where
t1 ALL a NULL NULL NULL 3 Using where
select * from t1 left join t2 on a=c where d = 4;
a b c d
3 2 3 4
4 2 4 4
drop table t1, t2;
CREATE TABLE t1 (
i int(11) NOT NULL default '0',
c char(10) NOT NULL default '',
PRIMARY KEY (i),
UNIQUE KEY c (c)
) TYPE=MyISAM;
INSERT INTO t1 VALUES (1,'a');
INSERT INTO t1 VALUES (2,'b');
INSERT INTO t1 VALUES (3,'c');
EXPLAIN SELECT i FROM t1 WHERE i=1;
table type possible_keys key key_len ref rows Extra
t1 const PRIMARY PRIMARY 4 const 1 Using index
EXPLAIN SELECT i FROM t1 WHERE i=1;
table type possible_keys key key_len ref rows Extra
t1 const PRIMARY PRIMARY 4 const 1 Using index
>>>>>>>
DROP TABLE t1;

View File

@@ -1929,6 +1929,4 @@ INSERT INTO t1 VALUES (3,'c');
EXPLAIN SELECT i FROM t1 WHERE i=1;
EXPLAIN SELECT i FROM t1 WHERE i=1;
DROP TABLE t1;