mirror of
https://github.com/MariaDB/server.git
synced 2025-08-01 03:47:19 +03:00
Merge svojtovich@bk-internal.mysql.com:/home/bk/mysql-5.1-engines
into april.(none):/home/svoj/devel/mysql/merge/mysql-5.1-engines
This commit is contained in:
@ -284,6 +284,46 @@ kp1='279' AND kp2='ELM0678' AND kp3='6' AND kp4='10' AND kp5 = 'R ';
|
||||
COUNT(*)
|
||||
1
|
||||
drop table t1;
|
||||
create table t1
|
||||
(
|
||||
key1 int not null,
|
||||
key2 int not null default 0,
|
||||
key3 int not null default 0
|
||||
);
|
||||
insert into t1(key1) values (1),(2),(3),(4),(5),(6),(7),(8);
|
||||
set @d=8;
|
||||
insert into t1 (key1) select key1+@d from t1;
|
||||
set @d=@d*2;
|
||||
insert into t1 (key1) select key1+@d from t1;
|
||||
set @d=@d*2;
|
||||
insert into t1 (key1) select key1+@d from t1;
|
||||
set @d=@d*2;
|
||||
insert into t1 (key1) select key1+@d from t1;
|
||||
set @d=@d*2;
|
||||
insert into t1 (key1) select key1+@d from t1;
|
||||
set @d=@d*2;
|
||||
insert into t1 (key1) select key1+@d from t1;
|
||||
set @d=@d*2;
|
||||
insert into t1 (key1) select key1+@d from t1;
|
||||
set @d=@d*2;
|
||||
alter table t1 add index i2(key2);
|
||||
alter table t1 add index i3(key3);
|
||||
update t1 set key2=key1,key3=key1;
|
||||
explain select * from t1 where (key3 > 30 and key3<35) or (key2 >32 and key2 < 40);
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 index_merge i2,i3 i3,i2 4,4 NULL 9 Using sort_union(i3,i2); Using where
|
||||
select * from t1 where (key3 > 30 and key3<35) or (key2 >32 and key2 < 40);
|
||||
key1 key2 key3
|
||||
31 31 31
|
||||
32 32 32
|
||||
33 33 33
|
||||
34 34 34
|
||||
35 35 35
|
||||
36 36 36
|
||||
37 37 37
|
||||
38 38 38
|
||||
39 39 39
|
||||
drop table t1;
|
||||
#---------------- 2-sweeps read Index merge test 2 -------------------------------
|
||||
SET SESSION STORAGE_ENGINE = InnoDB;
|
||||
drop table if exists t1;
|
||||
|
@ -982,6 +982,46 @@ kp1='279' AND kp2='ELM0678' AND kp3='6' AND kp4='10' AND kp5 = 'R ';
|
||||
COUNT(*)
|
||||
1
|
||||
drop table t1;
|
||||
create table t1
|
||||
(
|
||||
key1 int not null,
|
||||
key2 int not null default 0,
|
||||
key3 int not null default 0
|
||||
);
|
||||
insert into t1(key1) values (1),(2),(3),(4),(5),(6),(7),(8);
|
||||
set @d=8;
|
||||
insert into t1 (key1) select key1+@d from t1;
|
||||
set @d=@d*2;
|
||||
insert into t1 (key1) select key1+@d from t1;
|
||||
set @d=@d*2;
|
||||
insert into t1 (key1) select key1+@d from t1;
|
||||
set @d=@d*2;
|
||||
insert into t1 (key1) select key1+@d from t1;
|
||||
set @d=@d*2;
|
||||
insert into t1 (key1) select key1+@d from t1;
|
||||
set @d=@d*2;
|
||||
insert into t1 (key1) select key1+@d from t1;
|
||||
set @d=@d*2;
|
||||
insert into t1 (key1) select key1+@d from t1;
|
||||
set @d=@d*2;
|
||||
alter table t1 add index i2(key2);
|
||||
alter table t1 add index i3(key3);
|
||||
update t1 set key2=key1,key3=key1;
|
||||
explain select * from t1 where (key3 > 30 and key3<35) or (key2 >32 and key2 < 40);
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 index_merge i2,i3 i3,i2 4,4 NULL 11 Using sort_union(i3,i2); Using where
|
||||
select * from t1 where (key3 > 30 and key3<35) or (key2 >32 and key2 < 40);
|
||||
key1 key2 key3
|
||||
31 31 31
|
||||
32 32 32
|
||||
33 33 33
|
||||
34 34 34
|
||||
35 35 35
|
||||
36 36 36
|
||||
37 37 37
|
||||
38 38 38
|
||||
39 39 39
|
||||
drop table t1;
|
||||
#---------------- 2-sweeps read Index merge test 2 -------------------------------
|
||||
SET SESSION STORAGE_ENGINE = MyISAM;
|
||||
drop table if exists t1;
|
||||
|
@ -99,8 +99,8 @@ CREATE TABLE `t2` (
|
||||
`id4` INT NOT NULL,
|
||||
UNIQUE (`id2`,`id4`),
|
||||
KEY (`id1`)
|
||||
) ENGINE=InnoDB;
|
||||
INSERT INTO `t2`(`id1`,`id2`,`id3`,`id4`) VALUES
|
||||
);
|
||||
INSERT INTO `t2`(`id1`,`id2`,`id3`,`id4`) VALUES
|
||||
(1,1,1,0),
|
||||
(1,1,2,1),
|
||||
(5,1,2,2),
|
||||
@ -271,6 +271,25 @@ explain select distinct f1, f2 from t1;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 range NULL PRIMARY 5 NULL 3 Using index for group-by; Using temporary
|
||||
drop table t1;
|
||||
CREATE TABLE t1 (id int(11) NOT NULL PRIMARY KEY, name varchar(20),
|
||||
INDEX (name));
|
||||
CREATE TABLE t2 (id int(11) NOT NULL PRIMARY KEY, fkey int(11));
|
||||
ALTER TABLE t2 ADD FOREIGN KEY (fkey) REFERENCES t2(id);
|
||||
INSERT INTO t1 VALUES (1,'A1'),(2,'A2'),(3,'B');
|
||||
INSERT INTO t2 VALUES (1,1),(2,2),(3,2),(4,3),(5,3);
|
||||
EXPLAIN
|
||||
SELECT COUNT(*) FROM t2 LEFT JOIN t1 ON t2.fkey = t1.id
|
||||
WHERE t1.name LIKE 'A%';
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t1 index PRIMARY,name name 23 NULL 3 Using where; Using index
|
||||
1 SIMPLE t2 ref fkey fkey 5 test.t1.id 1 Using where; Using index
|
||||
EXPLAIN
|
||||
SELECT COUNT(*) FROM t2 LEFT JOIN t1 ON t2.fkey = t1.id
|
||||
WHERE t1.name LIKE 'A%' OR FALSE;
|
||||
id select_type table type possible_keys key key_len ref rows Extra
|
||||
1 SIMPLE t2 index NULL fkey 5 NULL 5 Using index
|
||||
1 SIMPLE t1 eq_ref PRIMARY PRIMARY 4 test.t2.fkey 1 Using where
|
||||
DROP TABLE t1,t2;
|
||||
CREATE TABLE t1 (a int, b int);
|
||||
insert into t1 values (1,1),(1,2);
|
||||
CREATE TABLE t2 (primary key (a)) select * from t1;
|
||||
@ -340,7 +359,7 @@ CREATE TABLE `t2` (
|
||||
`c` int(11) default NULL,
|
||||
PRIMARY KEY (`k`),
|
||||
UNIQUE KEY `idx_1` (`a`)
|
||||
) ENGINE=InnoDB;
|
||||
);
|
||||
insert into t2 ( a ) values ( 6 ) on duplicate key update c =
|
||||
ifnull( c,
|
||||
0 ) + 1;
|
||||
|
Reference in New Issue
Block a user