mariadb/mysql-test/r/multi_update.result

642 lines
19 KiB
Text
Raw Normal View History

drop table if exists t1,t2,t3;
drop database if exists mysqltest;
2004-12-30 23:44:00 +01:00
drop view if exists v1;
revoke all privileges on mysqltest.t1 from mysqltest_1@localhost;
revoke all privileges on mysqltest.* from mysqltest_1@localhost;
delete from mysql.user where user=_binary'mysqltest_1';
create table t1(id1 int not null auto_increment primary key, t char(12));
create table t2(id2 int not null, t char(12));
create table t3(id3 int not null, t char(12), index(id3));
select count(*) from t1 where id1 > 95;
count(*)
5
select count(*) from t2 where id2 > 95;
count(*)
25
select count(*) from t3 where id3 > 95;
count(*)
250
update t1,t2,t3 set t1.t="aaa", t2.t="bbb", t3.t="cc" where t1.id1 = t2.id2 and t2.id2 = t3.id3 and t1.id1 > 90;
select count(*) from t1 where t = "aaa";
count(*)
10
select count(*) from t1 where id1 > 90;
count(*)
10
select count(*) from t2 where t = "bbb";
count(*)
50
select count(*) from t2 where id2 > 90;
count(*)
50
select count(*) from t3 where t = "cc";
count(*)
500
select count(*) from t3 where id3 > 90;
count(*)
500
delete t1.*, t2.*, t3.* from t1,t2,t3 where t1.id1 = t2.id2 and t2.id2 = t3.id3 and t1.id1 > 95;
check table t1, t2, t3;
2001-06-24 21:11:00 +02:00
Table Op Msg_type Msg_text
test.t1 check status OK
test.t2 check status OK
test.t3 check status OK
select count(*) from t1 where id1 > 95;
2001-06-24 21:11:00 +02:00
count(*)
0
select count(*) from t2 where id2 > 95;
2001-06-24 21:11:00 +02:00
count(*)
0
select count(*) from t3 where id3 > 95;
2001-06-24 21:11:00 +02:00
count(*)
0
delete t1, t2, t3 from t1,t2,t3 where t1.id1 = t2.id2 and t2.id2 = t3.id3 and t1.id1 > 5;
select count(*) from t1 where id1 > 5;
2001-06-24 21:11:00 +02:00
count(*)
0
select count(*) from t2 where id2 > 5;
2001-06-24 21:11:00 +02:00
count(*)
0
select count(*) from t3 where id3 > 5;
2001-06-24 21:11:00 +02:00
count(*)
0
delete from t1, t2, t3 using t1,t2,t3 where t1.id1 = t2.id2 and t2.id2 = t3.id3 and t1.id1 > 0;
select count(*) from t1 where id1;
2001-06-24 21:11:00 +02:00
count(*)
0
select count(*) from t2 where id2;
2001-06-24 21:11:00 +02:00
count(*)
0
select count(*) from t3 where id3;
2001-06-24 21:11:00 +02:00
count(*)
0
drop table t1,t2,t3;
create table t1(id1 int not null primary key, t varchar(100)) pack_keys = 1;
create table t2(id2 int not null, t varchar(100), index(id2)) pack_keys = 1;
delete t1 from t1,t2 where t1.id1 = t2.id2 and t1.id1 > 500;
drop table t1,t2;
CREATE TABLE t1 (
id int(11) NOT NULL default '0',
name varchar(10) default NULL,
PRIMARY KEY (id)
) ENGINE=MyISAM;
INSERT INTO t1 VALUES (1,'aaa'),(2,'aaa'),(3,'aaa');
CREATE TABLE t2 (
id int(11) NOT NULL default '0',
name varchar(10) default NULL,
PRIMARY KEY (id)
) ENGINE=MyISAM;
INSERT INTO t2 VALUES (2,'bbb'),(3,'bbb'),(4,'bbb');
CREATE TABLE t3 (
id int(11) NOT NULL default '0',
mydate datetime default NULL,
PRIMARY KEY (id)
) ENGINE=MyISAM;
INSERT INTO t3 VALUES (1,'2002-02-04 00:00:00'),(3,'2002-05-12 00:00:00'),(5,'2002-05-12 00:00:00'),(6,'2002-06-22
00:00:00'),(7,'2002-07-22 00:00:00');
delete t1,t2,t3 from t1,t2,t3 where to_days(now())-to_days(t3.mydate)>=30 and t3.id=t1.id and t3.id=t2.id;
select * from t3;
id mydate
1 2002-02-04 00:00:00
5 2002-05-12 00:00:00
6 2002-06-22 00:00:00
7 2002-07-22 00:00:00
DROP TABLE t1,t2,t3;
CREATE TABLE IF NOT EXISTS `t1` (
2002-08-06 20:24:12 +02:00
`id` int(11) NOT NULL auto_increment,
`tst` text,
`tst1` text,
PRIMARY KEY (`id`)
) ENGINE=MyISAM;
CREATE TABLE IF NOT EXISTS `t2` (
2002-08-06 20:24:12 +02:00
`ID` int(11) NOT NULL auto_increment,
`ParId` int(11) default NULL,
`tst` text,
`tst1` text,
PRIMARY KEY (`ID`),
KEY `IX_ParId_t2` (`ParId`),
FOREIGN KEY (`ParId`) REFERENCES `t1` (`id`)
) ENGINE=MyISAM;
INSERT INTO t1(tst,tst1) VALUES("MySQL","MySQL AB"), ("MSSQL","Microsoft"), ("ORACLE","ORACLE");
INSERT INTO t2(ParId) VALUES(1), (2), (3);
select * from t2;
2002-08-06 20:24:12 +02:00
ID ParId tst tst1
1 1 NULL NULL
2 2 NULL NULL
3 3 NULL NULL
UPDATE t2, t1 SET t2.tst = t1.tst, t2.tst1 = t1.tst1 WHERE t2.ParId = t1.Id;
select * from t2;
2002-08-06 20:24:12 +02:00
ID ParId tst tst1
1 1 MySQL MySQL AB
2 2 MSSQL Microsoft
3 3 ORACLE ORACLE
drop table t1, t2 ;
2002-10-12 20:36:39 +02:00
create table t1 (n numeric(10));
create table t2 (n numeric(10));
insert into t2 values (1),(2),(4),(8),(16),(32);
select * from t2 left outer join t1 using (n);
n
1
2
4
8
16
32
2002-10-12 20:36:39 +02:00
delete t1,t2 from t2 left outer join t1 using (n);
select * from t2 left outer join t1 using (n);
n
drop table t1,t2 ;
create table t1 (n int(10) not null primary key, d int(10));
create table t2 (n int(10) not null primary key, d int(10));
insert into t1 values(1,1);
insert into t2 values(1,10),(2,20);
LOCK TABLES t1 write, t2 read;
DELETE t1.*, t2.* FROM t1,t2 where t1.n=t2.n;
ERROR HY000: Table 't2' was locked with a READ lock and can't be updated
UPDATE t1,t2 SET t1.d=t2.d,t2.d=30 WHERE t1.n=t2.n;
ERROR HY000: Table 't2' was locked with a READ lock and can't be updated
UPDATE t1,t2 SET t1.d=t2.d WHERE t1.n=t2.n;
unlock tables;
LOCK TABLES t1 write, t2 write;
UPDATE t1,t2 SET t1.d=t2.d WHERE t1.n=t2.n;
select * from t1;
n d
1 10
DELETE t1.*, t2.* FROM t1,t2 where t1.n=t2.n;
select * from t1;
n d
select * from t2;
n d
2 20
unlock tables;
drop table t1,t2;
set sql_safe_updates=1;
create table t1 (n int(10), d int(10));
create table t2 (n int(10), d int(10));
insert into t1 values(1,1);
insert into t2 values(1,10),(2,20);
UPDATE t1,t2 SET t1.d=t2.d WHERE t1.n=t2.n;
ERROR HY000: You are using safe update mode and you tried to update a table without a WHERE that uses a KEY column
set sql_safe_updates=0;
drop table t1,t2;
set timestamp=1038401397;
create table t1 (n int(10) not null primary key, d int(10), t timestamp);
create table t2 (n int(10) not null primary key, d int(10), t timestamp);
insert into t1 values(1,1,NULL);
insert into t2 values(1,10,NULL),(2,20,NULL);
set timestamp=1038000000;
UPDATE t1,t2 SET t1.d=t2.d WHERE t1.n=t2.n;
select n,d,unix_timestamp(t) from t1;
n d unix_timestamp(t)
1 10 1038000000
select n,d,unix_timestamp(t) from t2;
n d unix_timestamp(t)
1 10 1038401397
2 20 1038401397
UPDATE t1,t2 SET 1=2 WHERE t1.n=t2.n;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '1=2 WHERE t1.n=t2.n' at line 1
drop table t1,t2;
set timestamp=0;
set sql_safe_updates=0;
create table t1 (n int(10) not null primary key, d int(10));
create table t2 (n int(10) not null primary key, d int(10));
insert into t1 values(1,1), (3,3);
insert into t2 values(1,10),(2,20);
UPDATE t2 left outer join t1 on t1.n=t2.n SET t1.d=t2.d;
select * from t1;
n d
1 10
3 3
select * from t2;
n d
1 10
2 20
drop table t1,t2;
create table t1 (n int(10), d int(10));
create table t2 (n int(10), d int(10));
insert into t1 values(1,1),(1,2);
insert into t2 values(1,10),(2,20);
UPDATE t1,t2 SET t1.d=t2.d,t2.d=30 WHERE t1.n=t2.n;
select * from t1;
n d
1 10
1 10
select * from t2;
n d
1 30
2 20
drop table t1,t2;
create table t1 (n int(10), d int(10));
create table t2 (n int(10), d int(10));
insert into t1 values(1,1),(3,2);
insert into t2 values(1,10),(1,20);
UPDATE t1,t2 SET t1.d=t2.d,t2.d=30 WHERE t1.n=t2.n;
select * from t1;
n d
1 10
3 2
select * from t2;
n d
1 30
1 30
UPDATE t1 a ,t2 b SET a.d=b.d,b.d=30 WHERE a.n=b.n;
select * from t1;
n d
1 30
3 2
select * from t2;
n d
1 30
1 30
DELETE a, b FROM t1 a,t2 b where a.n=b.n;
select * from t1;
n d
3 2
select * from t2;
n d
drop table t1,t2;
CREATE TABLE t1 ( broj int(4) unsigned NOT NULL default '0', naziv char(25) NOT NULL default 'NEPOZNAT', PRIMARY KEY (broj)) ENGINE=MyISAM;
INSERT INTO t1 VALUES (1,'jedan'),(2,'dva'),(3,'tri'),(4,'xxxxxxxxxx'),(5,'a'),(10,''),(11,''),(12,''),(13,'');
CREATE TABLE t2 ( broj int(4) unsigned NOT NULL default '0', naziv char(25) NOT NULL default 'NEPOZNAT', PRIMARY KEY (broj)) ENGINE=MyISAM;
INSERT INTO t2 VALUES (1,'jedan'),(2,'dva'),(3,'tri'),(4,'xxxxxxxxxx'),(5,'a');
CREATE TABLE t3 ( broj int(4) unsigned NOT NULL default '0', naziv char(25) NOT NULL default 'NEPOZNAT', PRIMARY KEY (broj)) ENGINE=MyISAM;
INSERT INTO t3 VALUES (1,'jedan'),(2,'dva');
update t1,t2 set t1.naziv="aaaa" where t1.broj=t2.broj;
update t1,t2,t3 set t1.naziv="bbbb", t2.naziv="aaaa" where t1.broj=t2.broj and t2.broj=t3.broj;
drop table t1,t2,t3;
CREATE TABLE t1 (a int not null primary key, b int not null, key (b));
CREATE TABLE t2 (a int not null primary key, b int not null, key (b));
INSERT INTO t1 values (1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
INSERT INTO t2 values (1,1),(2,2),(3,3),(4,4),(5,5),(6,6),(7,7),(8,8),(9,9);
update t1,t2 set t1.a=t1.a+100;
select * from t1;
a b
101 1
102 2
103 3
104 4
105 5
106 6
107 7
108 8
109 9
update t1,t2 set t1.a=t1.a+100 where t1.a=101;
select * from t1;
a b
201 1
102 2
103 3
104 4
105 5
106 6
107 7
108 8
109 9
update t1,t2 set t1.b=t1.b+10 where t1.b=2;
select * from t1;
a b
201 1
102 12
103 3
104 4
105 5
106 6
107 7
108 8
109 9
update t1,t2 set t1.b=t1.b+2,t2.b=t1.b+10 where t1.b between 3 and 5 and t2.a=t1.a-100;
select * from t1;
a b
201 1
102 12
103 5
104 6
105 7
106 6
107 7
108 8
109 9
select * from t2;
a b
1 1
2 2
3 13
4 14
5 15
6 6
7 7
8 8
9 9
update t1,t2 set t1.b=t2.b, t1.a=t2.a where t1.a=t2.a and not exists (select * from t2 where t2.a > 10);
drop table t1,t2;
CREATE TABLE t3 ( KEY1 varchar(50) NOT NULL default '', PARAM_CORR_DISTANCE_RUSH double default NULL, PARAM_CORR_DISTANCE_GEM double default NULL, PARAM_AVG_TARE double default NULL, PARAM_AVG_NB_DAYS double default NULL, PARAM_DEFAULT_PROP_GEM_SRVC varchar(50) default NULL, PARAM_DEFAULT_PROP_GEM_NO_ETIK varchar(50) default NULL, PARAM_SCENARIO_COSTS varchar(50) default NULL, PARAM_DEFAULT_WAGON_COST double default NULL, tmp int(11) default NULL, PRIMARY KEY (KEY1)) ENGINE=MyISAM;
INSERT INTO t3 VALUES ('A',1,1,22,3.2,'R','R','BASE2',0.24,NULL);
create table t1 (A varchar(1));
insert into t1 values ("A") ,("B"),("C"),("D");
create table t2(Z varchar(15));
insert into t2(Z) select concat(a.a,b.a,c.a,d.a) from t1 as a, t1 as b, t1 as c, t1 as d;
update t2,t3 set Z =param_scenario_costs;
drop table t1,t2,t3;
create table t1 (a int, b int);
create table t2 (a int, b int);
insert into t1 values (1,1),(2,1),(3,1);
insert into t2 values (1,1), (3,1);
update t1 left join t2 on t1.a=t2.a set t1.b=2, t2.b=2 where t1.b=1 and t2.b=1 or t2.a is NULL;
select t1.a, t1.b,t2.a, t2.b from t1 left join t2 on t1.a=t2.a where t1.b=1 and t2.b=1 or t2.a is NULL;
a b a b
2 2 NULL NULL
drop table t1,t2;
create table t1 (a int not null auto_increment primary key, b int not null);
insert into t1 (b) values (1),(2),(3),(4);
update t1, t1 as t2 set t1.b=t2.b+1 where t1.a=t2.a;
select * from t1;
a b
1 2
2 3
3 4
4 5
drop table t1;
create table t1(id1 smallint(5), field char(5));
create table t2(id2 smallint(5), field char(5));
insert into t1 values (1, 'a'), (2, 'aa');
insert into t2 values (1, 'b'), (2, 'bb');
select * from t1;
id1 field
1 a
2 aa
select * from t2;
id2 field
1 b
2 bb
update t2 inner join t1 on t1.id1=t2.id2
set t2.field=t1.field
where 0=1;
update t2, t1 set t2.field=t1.field
where t1.id1=t2.id2 and 0=1;
delete t1, t2 from t2 inner join t1 on t1.id1=t2.id2
where 0=1;
delete t1, t2 from t2,t1
where t1.id1=t2.id2 and 0=1;
drop table t1,t2;
2003-11-18 15:04:52 +01:00
create table t1 ( a int not null, b int not null) ;
alter table t1 add index i1(a);
delete from t1 where a > 2000000;
create table t2 like t1;
insert into t2 select * from t1;
select 't2 rows before small delete', count(*) from t1;
t2 rows before small delete count(*)
t2 rows before small delete 2000000
delete t1,t2 from t1,t2 where t1.b=t2.a and t1.a < 2;
select 't2 rows after small delete', count(*) from t2;
t2 rows after small delete count(*)
t2 rows after small delete 1999999
select 't1 rows after small delete', count(*) from t1;
t1 rows after small delete count(*)
t1 rows after small delete 1999999
delete t1,t2 from t1,t2 where t1.b=t2.a and t1.a < 100*1000;
select 't2 rows after big delete', count(*) from t2;
t2 rows after big delete count(*)
t2 rows after big delete 1900001
select 't1 rows after big delete', count(*) from t1;
t1 rows after big delete count(*)
t1 rows after big delete 1900001
2003-12-02 19:20:51 +01:00
drop table t1,t2;
CREATE TABLE t1 ( a int );
CREATE TABLE t2 ( a int );
DELETE t1 FROM t1, t2 AS t3;
DELETE t4 FROM t1, t1 AS t4;
DELETE t3 FROM t1 AS t3, t1 AS t4;
DELETE t1 FROM t1 AS t3, t2 AS t4;
ERROR 42S02: Unknown table 't1' in MULTI DELETE
INSERT INTO t1 values (1),(2);
INSERT INTO t2 values (1),(2);
DELETE t1 FROM t1 AS t2, t2 AS t1 where t1.a=t2.a and t1.a=1;
SELECT * from t1;
a
2004-03-17 23:09:13 +01:00
1
2
SELECT * from t2;
a
2
DELETE t2 FROM t1 AS t2, t2 AS t1 where t1.a=t2.a and t1.a=2;
SELECT * from t1;
a
2004-03-17 23:09:13 +01:00
1
SELECT * from t2;
a
2004-03-17 23:09:13 +01:00
2
DROP TABLE t1,t2;
2004-03-16 01:59:39 +01:00
create table `t1` (`p_id` int(10) unsigned NOT NULL auto_increment, `p_code` varchar(20) NOT NULL default '', `p_active` tinyint(1) unsigned NOT NULL default '1', PRIMARY KEY (`p_id`) );
create table `t2` (`c2_id` int(10) unsigned NULL auto_increment, `c2_p_id` int(10) unsigned NOT NULL default '0', `c2_note` text NOT NULL, `c2_active` tinyint(1) unsigned NOT NULL default '1', PRIMARY KEY (`c2_id`), KEY `c2_p_id` (`c2_p_id`) );
insert into t1 values (0,'A01-Comp',1);
insert into t1 values (0,'B01-Comp',1);
insert into t2 values (0,1,'A Note',1);
update t1 left join t2 on p_id = c2_p_id set c2_note = 'asdf-1' where p_id = 2;
select * from t1;
2004-03-16 01:59:39 +01:00
p_id p_code p_active
1 A01-Comp 1
2 B01-Comp 1
select * from t2;
2004-03-16 01:59:39 +01:00
c2_id c2_p_id c2_note c2_active
1 1 A Note 1
drop table t1, t2;
create database mysqltest;
create table mysqltest.t1 (a int, b int, primary key (a));
create table mysqltest.t2 (a int, b int, primary key (a));
create table mysqltest.t3 (a int, b int, primary key (a));
grant select on mysqltest.* to mysqltest_1@localhost;
grant update on mysqltest.t1 to mysqltest_1@localhost;
update t1, t2 set t1.b=1 where t1.a=t2.a;
update t1, t2 set t1.b=(select t3.b from t3 where t1.a=t3.a) where t1.a=t2.a;
revoke all privileges on mysqltest.t1 from mysqltest_1@localhost;
revoke all privileges on mysqltest.* from mysqltest_1@localhost;
delete from mysql.user where user=_binary'mysqltest_1';
drop database mysqltest;
create table t1 (a int, primary key (a));
create table t2 (a int, primary key (a));
create table t3 (a int, primary key (a));
delete t1,t3 from t1,t2 where t1.a=t2.a and t2.a=(select t3.a from t3 where t1.a=t3.a);
ERROR 42S02: Unknown table 't3' in MULTI DELETE
drop table t1, t2, t3;
create table t1 (col1 int);
create table t2 (col1 int);
update t1,t2 set t1.col1 = (select max(col1) from t1) where t1.col1 = t2.col1;
ERROR HY000: You can't specify target table 't1' for update in FROM clause
delete t1 from t1,t2 where t1.col1 < (select max(col1) from t1) and t1.col1 = t2.col1;
ERROR HY000: You can't specify target table 't1' for update in FROM clause
drop table t1,t2;
2004-12-11 14:36:12 +01:00
create table t1 (
aclid bigint not null primary key,
status tinyint(1) not null
) engine = innodb;
create table t2 (
refid bigint not null primary key,
aclid bigint, index idx_acl(aclid)
) engine = innodb;
insert into t2 values(1,null);
2004-12-11 14:36:12 +01:00
delete t2, t1 from t2 left join t1 on (t2.aclid=t1.aclid) where t2.refid='1';
drop table t1, t2;
create table t1(a int);
create table t2(a int);
delete from t1,t2 using t1,t2 where t1.a=(select a from t1);
ERROR HY000: You can't specify target table 't1' for update in FROM clause
drop table t1, t2;
create table t1 ( c char(8) not null ) engine=innodb;
2003-12-02 19:20:51 +01:00
insert into t1 values ('0'),('1'),('2'),('3'),('4'),('5'),('6'),('7'),('8'),('9');
insert into t1 values ('A'),('B'),('C'),('D'),('E'),('F');
alter table t1 add b char(8) not null;
alter table t1 add a char(8) not null;
alter table t1 add primary key (a,b,c);
update t1 set a=c, b=c;
create table t2 like t1;
insert into t2 select * from t1;
delete t1,t2 from t2,t1 where t1.a<'B' and t2.b=t1.b;
drop table t1,t2;
create table t1 ( c char(8) not null ) engine=innodb;
2003-12-02 19:20:51 +01:00
insert into t1 values ('0'),('1'),('2'),('3'),('4'),('5'),('6'),('7'),('8'),('9');
insert into t1 values ('A'),('B'),('C'),('D'),('E'),('F');
alter table t1 add b char(8) not null;
alter table t1 add a char(8) not null;
alter table t1 add primary key (a,b,c);
update t1 set a=c, b=c;
create table t2 like t1;
insert into t2 select * from t1;
delete t1,t2 from t2,t1 where t1.a<'B' and t2.b=t1.b;
drop table t1,t2;
2004-11-08 00:54:23 +01:00
create table t1 (a int, b int);
insert into t1 values (1, 2), (2, 3), (3, 4);
create table t2 (a int);
insert into t2 values (10), (20), (30);
create view v1 as select a as b, a/10 as a from t2;
lock table t1 write;
alter table t1 add column c int default 100 after a;
update t1, v1 set t1.b=t1.a+t1.b+v1.b where t1.a=v1.a;
2004-11-08 00:54:23 +01:00
unlock tables;
select * from t1;
a c b
1 100 13
2 100 25
3 100 37
select * from t2;
a
10
20
30
drop view v1;
drop table t1, t2;
This changeset is largely a handler cleanup changeset (WL#3281), but includes fixes and cleanups that was found necessary while testing the handler changes Changes that requires code changes in other code of other storage engines. (Note that all changes are very straightforward and one should find all issues by compiling a --debug build and fixing all compiler errors and all asserts in field.cc while running the test suite), - New optional handler function introduced: reset() This is called after every DML statement to make it easy for a handler to statement specific cleanups. (The only case it's not called is if force the file to be closed) - handler::extra(HA_EXTRA_RESET) is removed. Code that was there before should be moved to handler::reset() - table->read_set contains a bitmap over all columns that are needed in the query. read_row() and similar functions only needs to read these columns - table->write_set contains a bitmap over all columns that will be updated in the query. write_row() and update_row() only needs to update these columns. The above bitmaps should now be up to date in all context (including ALTER TABLE, filesort()). The handler is informed of any changes to the bitmap after fix_fields() by calling the virtual function handler::column_bitmaps_signal(). If the handler does caching of these bitmaps (instead of using table->read_set, table->write_set), it should redo the caching in this code. as the signal() may be sent several times, it's probably best to set a variable in the signal and redo the caching on read_row() / write_row() if the variable was set. - Removed the read_set and write_set bitmap objects from the handler class - Removed all column bit handling functions from the handler class. (Now one instead uses the normal bitmap functions in my_bitmap.c instead of handler dedicated bitmap functions) - field->query_id is removed. One should instead instead check table->read_set and table->write_set if a field is used in the query. - handler::extra(HA_EXTRA_RETRIVE_ALL_COLS) and handler::extra(HA_EXTRA_RETRIEVE_PRIMARY_KEY) are removed. One should now instead use table->read_set to check for which columns to retrieve. - If a handler needs to call Field->val() or Field->store() on columns that are not used in the query, one should install a temporary all-columns-used map while doing so. For this, we provide the following functions: my_bitmap_map *old_map= dbug_tmp_use_all_columns(table, table->read_set); field->val(); dbug_tmp_restore_column_map(table->read_set, old_map); and similar for the write map: my_bitmap_map *old_map= dbug_tmp_use_all_columns(table, table->write_set); field->val(); dbug_tmp_restore_column_map(table->write_set, old_map); If this is not done, you will sooner or later hit a DBUG_ASSERT in the field store() / val() functions. (For not DBUG binaries, the dbug_tmp_restore_column_map() and dbug_tmp_restore_column_map() are inline dummy functions and should be optimized away be the compiler). - If one needs to temporary set the column map for all binaries (and not just to avoid the DBUG_ASSERT() in the Field::store() / Field::val() methods) one should use the functions tmp_use_all_columns() and tmp_restore_column_map() instead of the above dbug_ variants. - All 'status' fields in the handler base class (like records, data_file_length etc) are now stored in a 'stats' struct. This makes it easier to know what status variables are provided by the base handler. This requires some trivial variable names in the extra() function. - New virtual function handler::records(). This is called to optimize COUNT(*) if (handler::table_flags() & HA_HAS_RECORDS()) is true. (stats.records is not supposed to be an exact value. It's only has to be 'reasonable enough' for the optimizer to be able to choose a good optimization path). - Non virtual handler::init() function added for caching of virtual constants from engine. - Removed has_transactions() virtual method. Now one should instead return HA_NO_TRANSACTIONS in table_flags() if the table handler DOES NOT support transactions. - The 'xxxx_create_handler()' function now has a MEM_ROOT_root argument that is to be used with 'new handler_name()' to allocate the handler in the right area. The xxxx_create_handler() function is also responsible for any initialization of the object before returning. For example, one should change: static handler *myisam_create_handler(TABLE_SHARE *table) { return new ha_myisam(table); } -> static handler *myisam_create_handler(TABLE_SHARE *table, MEM_ROOT *mem_root) { return new (mem_root) ha_myisam(table); } - New optional virtual function: use_hidden_primary_key(). This is called in case of an update/delete when (table_flags() and HA_PRIMARY_KEY_REQUIRED_FOR_DELETE) is defined but we don't have a primary key. This allows the handler to take precisions in remembering any hidden primary key to able to update/delete any found row. The default handler marks all columns to be read. - handler::table_flags() now returns a ulonglong (to allow for more flags). - New/changed table_flags() - HA_HAS_RECORDS Set if ::records() is supported - HA_NO_TRANSACTIONS Set if engine doesn't support transactions - HA_PRIMARY_KEY_REQUIRED_FOR_DELETE Set if we should mark all primary key columns for read when reading rows as part of a DELETE statement. If there is no primary key, all columns are marked for read. - HA_PARTIAL_COLUMN_READ Set if engine will not read all columns in some cases (based on table->read_set) - HA_PRIMARY_KEY_ALLOW_RANDOM_ACCESS Renamed to HA_PRIMARY_KEY_REQUIRED_FOR_POSITION. - HA_DUPP_POS Renamed to HA_DUPLICATE_POS - HA_REQUIRES_KEY_COLUMNS_FOR_DELETE Set this if we should mark ALL key columns for read when when reading rows as part of a DELETE statement. In case of an update we will mark all keys for read for which key part changed value. - HA_STATS_RECORDS_IS_EXACT Set this if stats.records is exact. (This saves us some extra records() calls when optimizing COUNT(*)) - Removed table_flags() - HA_NOT_EXACT_COUNT Now one should instead use HA_HAS_RECORDS if handler::records() gives an exact count() and HA_STATS_RECORDS_IS_EXACT if stats.records is exact. - HA_READ_RND_SAME Removed (no one supported this one) - Removed not needed functions ha_retrieve_all_cols() and ha_retrieve_all_pk() - Renamed handler::dupp_pos to handler::dup_pos - Removed not used variable handler::sortkey Upper level handler changes: - ha_reset() now does some overall checks and calls ::reset() - ha_table_flags() added. This is a cached version of table_flags(). The cache is updated on engine creation time and updated on open. MySQL level changes (not obvious from the above): - DBUG_ASSERT() added to check that column usage matches what is set in the column usage bit maps. (This found a LOT of bugs in current column marking code). - In 5.1 before, all used columns was marked in read_set and only updated columns was marked in write_set. Now we only mark columns for which we need a value in read_set. - Column bitmaps are created in open_binary_frm() and open_table_from_share(). (Before this was in table.cc) - handler::table_flags() calls are replaced with handler::ha_table_flags() - For calling field->val() you must have the corresponding bit set in table->read_set. For calling field->store() you must have the corresponding bit set in table->write_set. (There are asserts in all store()/val() functions to catch wrong usage) - thd->set_query_id is renamed to thd->mark_used_columns and instead of setting this to an integer value, this has now the values: MARK_COLUMNS_NONE, MARK_COLUMNS_READ, MARK_COLUMNS_WRITE Changed also all variables named 'set_query_id' to mark_used_columns. - In filesort() we now inform the handler of exactly which columns are needed doing the sort and choosing the rows. - The TABLE_SHARE object has a 'all_set' column bitmap one can use when one needs a column bitmap with all columns set. (This is used for table->use_all_columns() and other places) - The TABLE object has 3 column bitmaps: - def_read_set Default bitmap for columns to be read - def_write_set Default bitmap for columns to be written - tmp_set Can be used as a temporary bitmap when needed. The table object has also two pointer to bitmaps read_set and write_set that the handler should use to find out which columns are used in which way. - count() optimization now calls handler::records() instead of using handler->stats.records (if (table_flags() & HA_HAS_RECORDS) is true). - Added extra argument to Item::walk() to indicate if we should also traverse sub queries. - Added TABLE parameter to cp_buffer_from_ref() - Don't close tables created with CREATE ... SELECT but keep them in the table cache. (Faster usage of newly created tables). New interfaces: - table->clear_column_bitmaps() to initialize the bitmaps for tables at start of new statements. - table->column_bitmaps_set() to set up new column bitmaps and signal the handler about this. - table->column_bitmaps_set_no_signal() for some few cases where we need to setup new column bitmaps but don't signal the handler (as the handler has already been signaled about these before). Used for the momement only in opt_range.cc when doing ROR scans. - table->use_all_columns() to install a bitmap where all columns are marked as use in the read and the write set. - table->default_column_bitmaps() to install the normal read and write column bitmaps, but not signaling the handler about this. This is mainly used when creating TABLE instances. - table->mark_columns_needed_for_delete(), table->mark_columns_needed_for_delete() and table->mark_columns_needed_for_insert() to allow us to put additional columns in column usage maps if handler so requires. (The handler indicates what it neads in handler->table_flags()) - table->prepare_for_position() to allow us to tell handler that it needs to read primary key parts to be able to store them in future table->position() calls. (This replaces the table->file->ha_retrieve_all_pk function) - table->mark_auto_increment_column() to tell handler are going to update columns part of any auto_increment key. - table->mark_columns_used_by_index() to mark all columns that is part of an index. It will also send extra(HA_EXTRA_KEYREAD) to handler to allow it to quickly know that it only needs to read colums that are part of the key. (The handler can also use the column map for detecting this, but simpler/faster handler can just monitor the extra() call). - table->mark_columns_used_by_index_no_reset() to in addition to other columns, also mark all columns that is used by the given key. - table->restore_column_maps_after_mark_index() to restore to default column maps after a call to table->mark_columns_used_by_index(). - New item function register_field_in_read_map(), for marking used columns in table->read_map. Used by filesort() to mark all used columns - Maintain in TABLE->merge_keys set of all keys that are used in query. (Simplices some optimization loops) - Maintain Field->part_of_key_not_clustered which is like Field->part_of_key but the field in the clustered key is not assumed to be part of all index. (used in opt_range.cc for faster loops) - dbug_tmp_use_all_columns(), dbug_tmp_restore_column_map() tmp_use_all_columns() and tmp_restore_column_map() functions to temporally mark all columns as usable. The 'dbug_' version is primarily intended inside a handler when it wants to just call Field:store() & Field::val() functions, but don't need the column maps set for any other usage. (ie:: bitmap_is_set() is never called) - We can't use compare_records() to skip updates for handlers that returns a partial column set and the read_set doesn't cover all columns in the write set. The reason for this is that if we have a column marked only for write we can't in the MySQL level know if the value changed or not. The reason this worked before was that MySQL marked all to be written columns as also to be read. The new 'optimal' bitmaps exposed this 'hidden bug'. - open_table_from_share() does not anymore setup temporary MEM_ROOT object as a thread specific variable for the handler. Instead we send the to-be-used MEMROOT to get_new_handler(). (Simpler, faster code) Bugs fixed: - Column marking was not done correctly in a lot of cases. (ALTER TABLE, when using triggers, auto_increment fields etc) (Could potentially result in wrong values inserted in table handlers relying on that the old column maps or field->set_query_id was correct) Especially when it comes to triggers, there may be cases where the old code would cause lost/wrong values for NDB and/or InnoDB tables. - Split thd->options flag OPTION_STATUS_NO_TRANS_UPDATE to two flags: OPTION_STATUS_NO_TRANS_UPDATE and OPTION_KEEP_LOG. This allowed me to remove some wrong warnings about: "Some non-transactional changed tables couldn't be rolled back" - Fixed handling of INSERT .. SELECT and CREATE ... SELECT that wrongly reset (thd->options & OPTION_STATUS_NO_TRANS_UPDATE) which caused us to loose some warnings about "Some non-transactional changed tables couldn't be rolled back") - Fixed use of uninitialized memory in ha_ndbcluster.cc::delete_table() which could cause delete_table to report random failures. - Fixed core dumps for some tests when running with --debug - Added missing FN_LIBCHAR in mysql_rm_tmp_tables() (This has probably caused us to not properly remove temporary files after crash) - slow_logs was not properly initialized, which could maybe cause extra/lost entries in slow log. - If we get an duplicate row on insert, change column map to read and write all columns while retrying the operation. This is required by the definition of REPLACE and also ensures that fields that are only part of UPDATE are properly handled. This fixed a bug in NDB and REPLACE where REPLACE wrongly copied some column values from the replaced row. - For table handler that doesn't support NULL in keys, we would give an error when creating a primary key with NULL fields, even after the fields has been automaticly converted to NOT NULL. - Creating a primary key on a SPATIAL key, would fail if field was not declared as NOT NULL. Cleanups: - Removed not used condition argument to setup_tables - Removed not needed item function reset_query_id_processor(). - Field->add_index is removed. Now this is instead maintained in (field->flags & FIELD_IN_ADD_INDEX) - Field->fieldnr is removed (use field->field_index instead) - New argument to filesort() to indicate that it should return a set of row pointers (not used columns). This allowed me to remove some references to sql_command in filesort and should also enable us to return column results in some cases where we couldn't before. - Changed column bitmap handling in opt_range.cc to be aligned with TABLE bitmap, which allowed me to use bitmap functions instead of looping over all fields to create some needed bitmaps. (Faster and smaller code) - Broke up found too long lines - Moved some variable declaration at start of function for better code readability. - Removed some not used arguments from functions. (setup_fields(), mysql_prepare_insert_check_table()) - setup_fields() now takes an enum instead of an int for marking columns usage. - For internal temporary tables, use handler::write_row(), handler::delete_row() and handler::update_row() instead of handler::ha_xxxx() for faster execution. - Changed some constants to enum's and define's. - Using separate column read and write sets allows for easier checking of timestamp field was set by statement. - Remove calls to free_io_cache() as this is now done automaticly in ha_reset() - Don't build table->normalized_path as this is now identical to table->path (after bar's fixes to convert filenames) - Fixed some missed DBUG_PRINT(.."%lx") to use "0x%lx" to make it easier to do comparision with the 'convert-dbug-for-diff' tool. Things left to do in 5.1: - We wrongly log failed CREATE TABLE ... SELECT in some cases when using row based logging (as shown by testcase binlog_row_mix_innodb_myisam.result) Mats has promised to look into this. - Test that my fix for CREATE TABLE ... SELECT is indeed correct. (I added several test cases for this, but in this case it's better that someone else also tests this throughly). Lars has promosed to do this.
2006-06-04 17:52:22 +02:00
create table t1 (i1 int, i2 int, i3 int);
create table t2 (id int, c1 varchar(20), c2 varchar(20));
insert into t1 values (1,5,10),(3,7,12),(4,5,2),(9,10,15),(2,2,2);
insert into t2 values (9,"abc","def"),(5,"opq","lmn"),(2,"test t","t test");
select * from t1 order by i1;
i1 i2 i3
1 5 10
2 2 2
3 7 12
4 5 2
9 10 15
select * from t2;
id c1 c2
9 abc def
5 opq lmn
2 test t t test
update t1,t2 set t1.i2=15, t2.c2="ppc" where t1.i1=t2.id;
select * from t1 order by i1;
i1 i2 i3
1 5 10
2 15 2
3 7 12
4 5 2
9 15 15
select * from t2 order by id;
id c1 c2
2 test t ppc
5 opq lmn
9 abc ppc
delete t1.*,t2.* from t1,t2 where t1.i2=t2.id;
select * from t1 order by i1;
i1 i2 i3
2 15 2
3 7 12
9 15 15
select * from t2 order by id;
id c1 c2
2 test t ppc
9 abc ppc
drop table t1, t2;
create table t1 (i1 int auto_increment not null, i2 int, i3 int, primary key (i1));
create table t2 (id int auto_increment not null, c1 varchar(20), c2 varchar(20), primary key(id));
insert into t1 values (1,5,10),(3,7,12),(4,5,2),(9,10,15),(2,2,2);
insert into t2 values (9,"abc","def"),(5,"opq","lmn"),(2,"test t","t test");
select * from t1 order by i1;
i1 i2 i3
1 5 10
2 2 2
3 7 12
4 5 2
9 10 15
select * from t2 order by id;
id c1 c2
2 test t t test
5 opq lmn
9 abc def
update t1,t2 set t1.i2=15, t2.c2="ppc" where t1.i1=t2.id;
select * from t1 order by i1;
i1 i2 i3
1 5 10
2 15 2
3 7 12
4 5 2
9 15 15
select * from t2 order by id;
id c1 c2
2 test t ppc
5 opq lmn
9 abc ppc
delete t1.*,t2.* from t1,t2 where t1.i2=t2.id;
select * from t1 order by i1;
i1 i2 i3
2 15 2
3 7 12
9 15 15
select * from t2 order by id;
id c1 c2
2 test t ppc
9 abc ppc
drop table t1, t2;
CREATE TABLE `t1` (
`a` int(11) NOT NULL auto_increment,
`b` int(11) default NULL,
PRIMARY KEY (`a`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 ;
CREATE TABLE `t2` (
`a` int(11) NOT NULL auto_increment,
`b` int(11) default NULL,
PRIMARY KEY (`a`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 ;
set @@session.binlog_format= mixed;
insert into t1 values (1,1),(2,2);
insert into t2 values (1,1),(4,4);
reset master;
UPDATE t2,t1 SET t2.a=t1.a+2;
ERROR 23000: Duplicate entry '3' for key 'PRIMARY'
select * from t2 /* must be (3,1), (4,4) */;
a b
3 1
4 4
show master status /* there must be the UPDATE query event */;
File Position Binlog_Do_DB Binlog_Ignore_DB
master-bin.000001 197
delete from t1;
delete from t2;
insert into t1 values (1,2),(3,4),(4,4);
insert into t2 values (1,2),(3,4),(4,4);
reset master;
UPDATE t2,t1 SET t2.a=t2.b where t2.a=t1.a;
ERROR 23000: Duplicate entry '4' for key 'PRIMARY'
show master status /* there must be the UPDATE query event */;
File Position Binlog_Do_DB Binlog_Ignore_DB
master-bin.000001 212
drop table t1, t2;
end of tests