mirror of
https://github.com/MariaDB/server.git
synced 2025-11-03 14:33:32 +03:00
c9dc936a2b
upgrading lock, even with low_priority_updates
The problem is that there is no mechanism to control whether a
delayed insert takes a high or low priority lock on a table.
The solution is to modify the delayed insert thread ("handler")
to take into account the global value of low_priority_updates
when taking table locks. The value of low_priority_updates is
retrieved when the insert delayed thread is created and will
remain the same for the duration of the thread.
include/thr_lock.h:
Update prototype.
mysql-test/r/delayed.result:
Add test case result for Bug#40536
mysql-test/t/delayed.test:
Add test case for Bug#40536
mysys/thr_lock.c:
Add function parameter which specifies the write lock type.
sql/sql_insert.cc:
Take a low priority write lock if global value of low_priority_updates
was ON when the thread was created.
314 lines
7.5 KiB
Plaintext
314 lines
7.5 KiB
Plaintext
drop table if exists t1;
|
|
create table t1 (a char(10), tmsp timestamp);
|
|
insert into t1 set a = 1;
|
|
insert delayed into t1 set a = 2;
|
|
insert into t1 set a = 3, tmsp=NULL;
|
|
insert delayed into t1 set a = 4;
|
|
insert delayed into t1 set a = 5, tmsp = 19711006010203;
|
|
insert delayed into t1 (a, tmsp) values (6, 19711006010203);
|
|
insert delayed into t1 (a, tmsp) values (7, NULL);
|
|
FLUSH TABLE t1;
|
|
insert into t1 set a = 8,tmsp=19711006010203;
|
|
select * from t1 where tmsp=0;
|
|
a tmsp
|
|
select * from t1 where tmsp=19711006010203;
|
|
a tmsp
|
|
5 1971-10-06 01:02:03
|
|
6 1971-10-06 01:02:03
|
|
8 1971-10-06 01:02:03
|
|
drop table t1;
|
|
create table t1 (a int not null auto_increment primary key, b char(10));
|
|
insert delayed into t1 values (1,"b");
|
|
insert delayed into t1 values (null,"c");
|
|
insert delayed into t1 values (3,"d"),(null,"e");
|
|
insert delayed into t1 values (3,"this will give an","error");
|
|
ERROR 21S01: Column count doesn't match value count at row 1
|
|
FLUSH TABLE t1;
|
|
show status like 'not_flushed_delayed_rows';
|
|
Variable_name Value
|
|
Not_flushed_delayed_rows 0
|
|
select * from t1;
|
|
a b
|
|
1 b
|
|
2 c
|
|
3 d
|
|
4 e
|
|
drop table t1;
|
|
create table t1 (a int not null primary key);
|
|
insert into t1 values (1);
|
|
insert delayed into t1 values (1);
|
|
select * from t1;
|
|
a
|
|
1
|
|
drop table t1;
|
|
CREATE TABLE t1 ( a int(10) NOT NULL auto_increment, PRIMARY KEY (a));
|
|
insert delayed into t1 values(null);
|
|
insert into t1 values(null);
|
|
insert into t1 values(null);
|
|
insert delayed into t1 values(null);
|
|
insert delayed into t1 values(null);
|
|
insert delayed into t1 values(null);
|
|
insert into t1 values(null);
|
|
insert into t1 values(null);
|
|
insert into t1 values(null);
|
|
delete from t1 where a=6;
|
|
insert delayed into t1 values(null);
|
|
insert delayed into t1 values(null);
|
|
insert delayed into t1 values(null);
|
|
insert delayed into t1 values(null);
|
|
FLUSH TABLE t1;
|
|
select * from t1 order by a;
|
|
a
|
|
1
|
|
2
|
|
3
|
|
4
|
|
5
|
|
7
|
|
8
|
|
9
|
|
10
|
|
11
|
|
12
|
|
13
|
|
DROP TABLE t1;
|
|
SET @bug20627_old_auto_increment_offset=
|
|
@@auto_increment_offset;
|
|
SET @bug20627_old_auto_increment_increment=
|
|
@@auto_increment_increment;
|
|
SET @bug20627_old_session_auto_increment_offset=
|
|
@@session.auto_increment_offset;
|
|
SET @bug20627_old_session_auto_increment_increment=
|
|
@@session.auto_increment_increment;
|
|
SET @@auto_increment_offset= 2;
|
|
SET @@auto_increment_increment= 3;
|
|
SET @@session.auto_increment_offset= 4;
|
|
SET @@session.auto_increment_increment= 5;
|
|
CREATE TABLE t1 (
|
|
c1 INT NOT NULL AUTO_INCREMENT,
|
|
PRIMARY KEY (c1)
|
|
);
|
|
INSERT INTO t1 VALUES (NULL),(NULL),(NULL);
|
|
SELECT * FROM t1;
|
|
c1
|
|
4
|
|
9
|
|
14
|
|
DROP TABLE t1;
|
|
CREATE TABLE t1 (
|
|
c1 INT NOT NULL AUTO_INCREMENT,
|
|
PRIMARY KEY (c1)
|
|
);
|
|
INSERT DELAYED INTO t1 VALUES (NULL),(NULL),(NULL);
|
|
FLUSH TABLE t1;
|
|
SELECT * FROM t1;
|
|
c1
|
|
4
|
|
9
|
|
14
|
|
DROP TABLE t1;
|
|
SET @@auto_increment_offset=
|
|
@bug20627_old_auto_increment_offset;
|
|
SET @@auto_increment_increment=
|
|
@bug20627_old_auto_increment_increment;
|
|
SET @@session.auto_increment_offset=
|
|
@bug20627_old_session_auto_increment_offset;
|
|
SET @@session.auto_increment_increment=
|
|
@bug20627_old_session_auto_increment_increment;
|
|
SET @bug20830_old_auto_increment_offset=
|
|
@@auto_increment_offset;
|
|
SET @bug20830_old_auto_increment_increment=
|
|
@@auto_increment_increment;
|
|
SET @bug20830_old_session_auto_increment_offset=
|
|
@@session.auto_increment_offset;
|
|
SET @bug20830_old_session_auto_increment_increment=
|
|
@@session.auto_increment_increment;
|
|
SET @@auto_increment_offset= 2;
|
|
SET @@auto_increment_increment= 3;
|
|
SET @@session.auto_increment_offset= 4;
|
|
SET @@session.auto_increment_increment= 5;
|
|
CREATE TABLE t1 (
|
|
c1 INT(11) NOT NULL AUTO_INCREMENT,
|
|
c2 INT(11) DEFAULT NULL,
|
|
PRIMARY KEY (c1)
|
|
);
|
|
SET insert_id= 14;
|
|
INSERT INTO t1 VALUES(NULL, 11), (NULL, 12), (NULL, 13);
|
|
INSERT INTO t1 VALUES(NULL, 21), (NULL, 22), (NULL, 23);
|
|
INSERT INTO t1 VALUES( 69, 31), (NULL, 32), (NULL, 33);
|
|
INSERT INTO t1 VALUES(NULL, 41), (NULL, 42), (NULL, 43);
|
|
SET insert_id= 114;
|
|
INSERT INTO t1 VALUES(NULL, 51), (NULL, 52), (NULL, 53);
|
|
INSERT INTO t1 VALUES(NULL, 61), (NULL, 62), (NULL, 63);
|
|
INSERT INTO t1 VALUES( 49, 71), (NULL, 72), (NULL, 73);
|
|
INSERT INTO t1 VALUES(NULL, 81), (NULL, 82), (NULL, 83);
|
|
SET insert_id= 114;
|
|
INSERT INTO t1 VALUES(NULL, 91);
|
|
ERROR 23000: Duplicate entry '114' for key 'PRIMARY'
|
|
INSERT INTO t1 VALUES (NULL, 92), (NULL, 93);
|
|
SELECT * FROM t1;
|
|
c1 c2
|
|
14 11
|
|
19 12
|
|
24 13
|
|
29 21
|
|
34 22
|
|
39 23
|
|
69 31
|
|
74 32
|
|
79 33
|
|
84 41
|
|
89 42
|
|
94 43
|
|
114 51
|
|
119 52
|
|
124 53
|
|
129 61
|
|
134 62
|
|
139 63
|
|
49 71
|
|
144 72
|
|
149 73
|
|
154 81
|
|
159 82
|
|
164 83
|
|
169 92
|
|
174 93
|
|
SELECT COUNT(*) FROM t1;
|
|
COUNT(*)
|
|
26
|
|
SELECT SUM(c1) FROM t1;
|
|
SUM(c1)
|
|
2569
|
|
DROP TABLE t1;
|
|
CREATE TABLE t1 (
|
|
c1 INT(11) NOT NULL AUTO_INCREMENT,
|
|
c2 INT(11) DEFAULT NULL,
|
|
PRIMARY KEY (c1)
|
|
);
|
|
SET insert_id= 14;
|
|
INSERT DELAYED INTO t1 VALUES(NULL, 11), (NULL, 12), (NULL, 13);
|
|
INSERT DELAYED INTO t1 VALUES(NULL, 21), (NULL, 22), (NULL, 23);
|
|
INSERT DELAYED INTO t1 VALUES( 69, 31), (NULL, 32), (NULL, 33);
|
|
INSERT DELAYED INTO t1 VALUES(NULL, 41), (NULL, 42), (NULL, 43);
|
|
SET insert_id= 114;
|
|
INSERT DELAYED INTO t1 VALUES(NULL, 51), (NULL, 52), (NULL, 53);
|
|
INSERT DELAYED INTO t1 VALUES(NULL, 61), (NULL, 62), (NULL, 63);
|
|
INSERT DELAYED INTO t1 VALUES( 49, 71), (NULL, 72), (NULL, 73);
|
|
INSERT DELAYED INTO t1 VALUES(NULL, 81), (NULL, 82), (NULL, 83);
|
|
SET insert_id= 114;
|
|
INSERT DELAYED INTO t1 VALUES(NULL, 91);
|
|
INSERT DELAYED INTO t1 VALUES (NULL, 92), (NULL, 93);
|
|
FLUSH TABLE t1;
|
|
SELECT * FROM t1;
|
|
c1 c2
|
|
14 11
|
|
19 12
|
|
24 13
|
|
29 21
|
|
34 22
|
|
39 23
|
|
69 31
|
|
74 32
|
|
79 33
|
|
84 41
|
|
89 42
|
|
94 43
|
|
114 51
|
|
119 52
|
|
124 53
|
|
129 61
|
|
134 62
|
|
139 63
|
|
49 71
|
|
144 72
|
|
149 73
|
|
154 81
|
|
159 82
|
|
164 83
|
|
169 92
|
|
174 93
|
|
SELECT COUNT(*) FROM t1;
|
|
COUNT(*)
|
|
26
|
|
SELECT SUM(c1) FROM t1;
|
|
SUM(c1)
|
|
2569
|
|
DROP TABLE t1;
|
|
SET @@auto_increment_offset=
|
|
@bug20830_old_auto_increment_offset;
|
|
SET @@auto_increment_increment=
|
|
@bug20830_old_auto_increment_increment;
|
|
SET @@session.auto_increment_offset=
|
|
@bug20830_old_session_auto_increment_offset;
|
|
SET @@session.auto_increment_increment=
|
|
@bug20830_old_session_auto_increment_increment;
|
|
CREATE TABLE t1(a BIT);
|
|
INSERT DELAYED INTO t1 VALUES(1);
|
|
FLUSH TABLE t1;
|
|
SELECT HEX(a) FROM t1;
|
|
HEX(a)
|
|
1
|
|
DROP TABLE t1;
|
|
CREATE TABLE t1 (a INT);
|
|
INSERT DELAYED INTO t1 SET b= b();
|
|
ERROR 42S22: Unknown column 'b' in 'field list'
|
|
DROP TABLE t1;
|
|
End of 5.0 tests
|
|
DROP TABLE IF EXISTS t1,t2;
|
|
SET SQL_MODE='NO_AUTO_VALUE_ON_ZERO';
|
|
CREATE TABLE `t1` (
|
|
`id` int(11) PRIMARY KEY auto_increment,
|
|
`f1` varchar(10) NOT NULL UNIQUE
|
|
);
|
|
INSERT DELAYED INTO t1 VALUES(0,"test1");
|
|
SELECT * FROM t1;
|
|
id f1
|
|
0 test1
|
|
SET SQL_MODE='PIPES_AS_CONCAT';
|
|
INSERT DELAYED INTO t1 VALUES(0,'a' || 'b');
|
|
SELECT * FROM t1;
|
|
id f1
|
|
0 test1
|
|
1 ab
|
|
SET SQL_MODE='ERROR_FOR_DIVISION_BY_ZERO,STRICT_ALL_TABLES';
|
|
INSERT DELAYED INTO t1 VALUES(mod(1,0),"test3");
|
|
ERROR 22012: Division by 0
|
|
CREATE TABLE t2 (
|
|
`id` int(11) PRIMARY KEY auto_increment,
|
|
`f1` date
|
|
);
|
|
SET SQL_MODE='NO_ZERO_DATE,STRICT_ALL_TABLES,NO_ZERO_IN_DATE';
|
|
INSERT DELAYED INTO t2 VALUES (0,'0000-00-00');
|
|
ERROR 22007: Incorrect date value: '0000-00-00' for column 'f1' at row 1
|
|
INSERT DELAYED INTO t2 VALUES (0,'2007-00-00');
|
|
ERROR 22007: Incorrect date value: '2007-00-00' for column 'f1' at row 1
|
|
DROP TABLE t1,t2;
|
|
set @old_delayed_updates = @@global.low_priority_updates;
|
|
set global low_priority_updates = 1;
|
|
select @@global.low_priority_updates;
|
|
@@global.low_priority_updates
|
|
1
|
|
drop table if exists t1;
|
|
create table t1 (a int, b int);
|
|
insert into t1 values (1,1);
|
|
lock table t1 read;
|
|
connection: update
|
|
insert delayed into t1 values (2,2);;
|
|
connection: select
|
|
select * from t1;
|
|
a b
|
|
1 1
|
|
connection: default
|
|
select * from t1;
|
|
a b
|
|
1 1
|
|
unlock tables;
|
|
select * from t1;
|
|
a b
|
|
1 1
|
|
2 2
|
|
drop table t1;
|
|
set global low_priority_updates = @old_delayed_updates;
|
|
End of 5.1 tests
|