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fixes to Bitmap class

This commit is contained in:
serg@serg.mylan
2003-10-24 22:44:48 +02:00
parent d74ecc079f
commit 6e17f4f20d
15 changed files with 237 additions and 246 deletions

View File

@ -240,11 +240,11 @@ id select_type table type possible_keys key key_len ref rows Extra
explain select * from t1, t1 t2 where t1.y = 2 and t2.x between t1.y-1 and t1.y+1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ref y y 5 const 1 Using where
1 SIMPLE t2 ALL x NULL NULL NULL 9 Range checked for each record (index map: 1)
1 SIMPLE t2 ALL x NULL NULL NULL 9 Range checked for each record (index map: 0x1)
explain select * from t1, t1 t2 where t1.y = 2 and t2.x >= t1.y-1 and t2.x <= t1.y+1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ref y y 5 const 1 Using where
1 SIMPLE t2 ALL x NULL NULL NULL 9 Range checked for each record (index map: 1)
1 SIMPLE t2 ALL x NULL NULL NULL 9 Range checked for each record (index map: 0x1)
explain select * from t1, t1 t2 where t1.y = 2 and t2.x between 0 and t1.y;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 ref y y 5 const 1 Using where
@ -267,11 +267,11 @@ INSERT INTO t2 VALUES (0),(0),(1),(1),(2),(2);
explain select * from t1, t2 where (t1.key1 <t2.keya + 1) and t2.keya=3;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ref j1 j1 4 const 1 Using where; Using index
1 SIMPLE t1 ALL i1,i2 NULL NULL NULL 4 Range checked for each record (index map: 3)
1 SIMPLE t1 ALL i1,i2 NULL NULL NULL 4 Range checked for each record (index map: 0x3)
explain select * from t1 force index(i2), t2 where (t1.key1 <t2.keya + 1) and t2.keya=3;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 ref j1 j1 4 const 1 Using where; Using index
1 SIMPLE t1 ALL i2 NULL NULL NULL 4 Range checked for each record (index map: 2)
1 SIMPLE t1 ALL i2 NULL NULL NULL 4 Range checked for each record (index map: 0x2)
DROP TABLE t1,t2;
create table t1 (id int(10) primary key);
insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9);