mirror of
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888fabd690
INCORRECT RESULTS Issue: ----- Updating varchar and text fields in the same update statement can produce incorrect results. When a varchar field is assigned to the text field and the varchar field is then set to a different value, the text field's result contains the varchar field's new value. SOLUTION: --------- Currently the blob type does not allocate space for the string to be stored. Instead it contains a pointer to the varchar string. So when the varchar field is changed as part of the update statement, the value contained in the blob also changes. The fix would be to actually store the value by allocating space for the blob's string. We can avoid allocating this space when the varchar field is not being written into.
566 lines
16 KiB
Text
566 lines
16 KiB
Text
drop table if exists t1,t2;
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create table t1 (a int auto_increment , primary key (a));
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insert into t1 values (NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL),(NULL);
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update t1 set a=a+10 where a > 34;
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update t1 set a=a+100 where a > 0;
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update t1 set a=a+100 where a=1 and a=2;
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update t1 set a=b+100 where a=1 and a=2;
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ERROR 42S22: Unknown column 'b' in 'field list'
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update t1 set a=b+100 where c=1 and a=2;
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ERROR 42S22: Unknown column 'c' in 'where clause'
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update t1 set d=a+100 where a=1;
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ERROR 42S22: Unknown column 'd' in 'field list'
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select * from t1;
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a
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101
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102
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103
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104
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105
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106
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107
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108
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109
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110
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111
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112
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113
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114
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115
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116
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117
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118
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119
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120
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121
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122
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123
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124
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125
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126
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127
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128
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129
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130
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131
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132
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133
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134
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145
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146
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drop table t1;
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CREATE TABLE t1
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(
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place_id int (10) unsigned NOT NULL,
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shows int(10) unsigned DEFAULT '0' NOT NULL,
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ishows int(10) unsigned DEFAULT '0' NOT NULL,
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ushows int(10) unsigned DEFAULT '0' NOT NULL,
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clicks int(10) unsigned DEFAULT '0' NOT NULL,
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iclicks int(10) unsigned DEFAULT '0' NOT NULL,
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uclicks int(10) unsigned DEFAULT '0' NOT NULL,
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ts timestamp,
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PRIMARY KEY (place_id,ts)
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);
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INSERT INTO t1 (place_id,shows,ishows,ushows,clicks,iclicks,uclicks,ts)
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VALUES (1,0,0,0,0,0,0,20000928174434);
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UPDATE t1 SET shows=shows+1,ishows=ishows+1,ushows=ushows+1,clicks=clicks+1,iclicks=iclicks+1,uclicks=uclicks+1 WHERE place_id=1 AND ts>="2000-09-28 00:00:00";
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select place_id,shows from t1;
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place_id shows
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1 1
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drop table t1;
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CREATE TABLE t1 (
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lfdnr int(10) unsigned NOT NULL default '0',
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ticket int(10) unsigned NOT NULL default '0',
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client varchar(255) NOT NULL default '',
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replyto varchar(255) NOT NULL default '',
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subject varchar(100) NOT NULL default '',
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timestamp int(10) unsigned NOT NULL default '0',
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tstamp timestamp NOT NULL,
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status int(3) NOT NULL default '0',
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type varchar(15) NOT NULL default '',
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assignment int(10) unsigned NOT NULL default '0',
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fupcount int(4) unsigned NOT NULL default '0',
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parent int(10) unsigned NOT NULL default '0',
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activity int(10) unsigned NOT NULL default '0',
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priority tinyint(1) unsigned NOT NULL default '1',
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cc varchar(255) NOT NULL default '',
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bcc varchar(255) NOT NULL default '',
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body text NOT NULL,
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comment text,
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header text,
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PRIMARY KEY (lfdnr),
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KEY k1 (timestamp),
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KEY k2 (type),
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KEY k3 (parent),
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KEY k4 (assignment),
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KEY ticket (ticket)
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) ENGINE=MyISAM;
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INSERT INTO t1 VALUES (773,773,'','','',980257344,20010318180652,0,'Open',10,0,0,0,1,'','','','','');
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alter table t1 change lfdnr lfdnr int(10) unsigned not null auto_increment;
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update t1 set status=1 where type='Open';
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select status from t1;
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status
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1
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drop table t1;
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create table t1 (a int not null, b int not null, key (a));
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insert into t1 values (1,1),(1,2),(1,3),(3,1),(3,2),(3,3),(3,1),(3,2),(3,3),(2,1),(2,2),(2,3);
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SET @tmp=0;
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update t1 set b=(@tmp:=@tmp+1) order by a;
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update t1 set b=99 where a=1 order by b asc limit 1;
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select * from t1 order by a,b;
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a b
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1 2
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1 3
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1 99
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2 4
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2 5
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2 6
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3 7
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3 8
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3 9
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3 10
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3 11
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3 12
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update t1 set b=100 where a=1 order by b desc limit 2;
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update t1 set a=a+10+b where a=1 order by b;
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select * from t1 order by a,b;
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a b
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2 4
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2 5
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2 6
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3 7
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3 8
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3 9
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3 10
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3 11
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3 12
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13 2
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111 100
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111 100
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create table t2 (a int not null, b int not null);
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insert into t2 values (1,1),(1,2),(1,3);
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update t1 set b=(select distinct 1 from (select * from t2) a);
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drop table t1,t2;
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CREATE TABLE t1 (
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`id_param` smallint(3) unsigned NOT NULL default '0',
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`nom_option` char(40) NOT NULL default '',
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`valid` tinyint(1) NOT NULL default '0',
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KEY `id_param` (`id_param`,`nom_option`)
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) ENGINE=MyISAM;
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INSERT INTO t1 (id_param,nom_option,valid) VALUES (185,'600x1200',1);
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UPDATE t1 SET nom_option='test' WHERE id_param=185 AND nom_option='600x1200' AND valid=1 LIMIT 1;
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select * from t1;
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id_param nom_option valid
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185 test 1
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drop table t1;
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create table t1 (F1 VARCHAR(30), F2 VARCHAR(30), F3 VARCHAR(30), cnt int, groupid int, KEY groupid_index (groupid));
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insert into t1 (F1,F2,F3,cnt,groupid) values ('0','0','0',1,6),
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('0','1','2',1,5), ('0','2','0',1,3), ('1','0','1',1,2),
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('1','2','1',1,1), ('1','2','2',1,1), ('2','0','1',2,4),
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('2','2','0',1,7);
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delete from m1 using t1 m1,t1 m2 where m1.groupid=m2.groupid and (m1.cnt < m2.cnt or m1.cnt=m2.cnt and m1.F3>m2.F3);
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select * from t1;
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F1 F2 F3 cnt groupid
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0 0 0 1 6
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0 1 2 1 5
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0 2 0 1 3
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1 0 1 1 2
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1 2 1 1 1
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2 0 1 2 4
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2 2 0 1 7
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drop table t1;
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CREATE TABLE t1 (
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`colA` int(10) unsigned NOT NULL auto_increment,
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`colB` int(11) NOT NULL default '0',
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PRIMARY KEY (`colA`)
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);
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INSERT INTO t1 VALUES (4433,5424);
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CREATE TABLE t2 (
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`colC` int(10) unsigned NOT NULL default '0',
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`colA` int(10) unsigned NOT NULL default '0',
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`colD` int(10) unsigned NOT NULL default '0',
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`colE` int(10) unsigned NOT NULL default '0',
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`colF` int(10) unsigned NOT NULL default '0',
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PRIMARY KEY (`colC`,`colA`,`colD`,`colE`)
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);
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INSERT INTO t2 VALUES (3,4433,10005,495,500);
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INSERT INTO t2 VALUES (3,4433,10005,496,500);
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INSERT INTO t2 VALUES (3,4433,10009,494,500);
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INSERT INTO t2 VALUES (3,4433,10011,494,500);
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INSERT INTO t2 VALUES (3,4433,10005,497,500);
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INSERT INTO t2 VALUES (3,4433,10013,489,500);
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INSERT INTO t2 VALUES (3,4433,10005,494,500);
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INSERT INTO t2 VALUES (3,4433,10005,493,500);
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INSERT INTO t2 VALUES (3,4433,10005,492,500);
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UPDATE IGNORE t2,t1 set t2.colE = t2.colE + 1,colF=0 WHERE t1.colA = t2.colA AND (t1.colB & 4096) > 0 AND (colE + 1) < colF;
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SELECT * FROM t2;
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colC colA colD colE colF
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3 4433 10005 495 500
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3 4433 10005 496 500
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3 4433 10009 495 0
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3 4433 10011 495 0
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3 4433 10005 498 0
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3 4433 10013 490 0
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3 4433 10005 494 500
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3 4433 10005 493 500
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3 4433 10005 492 500
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DROP TABLE t1;
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DROP TABLE t2;
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create table t1 (c1 int, c2 char(6), c3 int);
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create table t2 (c1 int, c2 char(6));
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insert into t1 values (1, "t1c2-1", 10), (2, "t1c2-2", 20);
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update t1 left join t2 on t1.c1 = t2.c1 set t2.c2 = "t2c2-1";
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update t1 left join t2 on t1.c1 = t2.c1 set t2.c2 = "t2c2-1" where t1.c3 = 10;
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drop table t1, t2;
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create table t1 (id int not null auto_increment primary key, id_str varchar(32));
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insert into t1 (id_str) values ("test");
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update t1 set id_str = concat(id_str, id) where id = last_insert_id();
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select * from t1;
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id id_str
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1 test1
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drop table t1;
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create table t1 (a int, b char(255), key(a, b(20)));
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insert into t1 values (0, '1');
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update t1 set b = b + 1 where a = 0;
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select * from t1;
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a b
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0 2
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drop table t1;
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create table t1 (a int, b varchar(10), key b(b(5))) engine=myisam;
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create table t2 (a int, b varchar(10)) engine=myisam;
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insert into t1 values ( 1, 'abcd1e');
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insert into t1 values ( 2, 'abcd2e');
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insert into t2 values ( 1, 'abcd1e');
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insert into t2 values ( 2, 'abcd2e');
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analyze table t1,t2;
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Table Op Msg_type Msg_text
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test.t1 analyze status OK
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test.t2 analyze status OK
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update t1, t2 set t1.a = t2.a where t2.b = t1.b;
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show warnings;
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Level Code Message
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drop table t1, t2;
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create table t1(f1 int, f2 int);
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create table t2(f3 int, f4 int);
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create index idx on t2(f3);
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insert into t1 values(1,0),(2,0);
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insert into t2 values(1,1),(2,2);
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UPDATE t1 SET t1.f2=(SELECT MAX(t2.f4) FROM t2 WHERE t2.f3=t1.f1);
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select * from t1;
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f1 f2
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1 1
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2 2
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drop table t1,t2;
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create table t1(f1 int);
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select DATABASE();
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DATABASE()
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test
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update t1 set f1=1 where count(*)=1;
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ERROR HY000: Invalid use of group function
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select DATABASE();
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DATABASE()
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test
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delete from t1 where count(*)=1;
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ERROR HY000: Invalid use of group function
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drop table t1;
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create table t1 ( a int, b int default 0, index (a) );
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insert into t1 (a) values (0),(0),(0),(0),(0),(0),(0),(0);
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flush status;
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select a from t1 order by a limit 1;
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a
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0
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show status like 'handler_read%';
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Variable_name Value
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Handler_read_first 1
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Handler_read_key 0
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Handler_read_last 0
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Handler_read_next 0
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Handler_read_prev 0
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Handler_read_rnd 0
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Handler_read_rnd_next 0
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flush status;
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update t1 set a=9999 order by a limit 1;
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update t1 set b=9999 order by a limit 1;
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show status like 'handler_read%';
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Variable_name Value
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Handler_read_first 1
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Handler_read_key 0
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Handler_read_last 0
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Handler_read_next 0
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Handler_read_prev 0
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Handler_read_rnd 2
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Handler_read_rnd_next 9
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flush status;
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delete from t1 order by a limit 1;
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show status like 'handler_read%';
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Variable_name Value
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Handler_read_first 1
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Handler_read_key 0
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Handler_read_last 0
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Handler_read_next 0
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Handler_read_prev 0
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Handler_read_rnd 0
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Handler_read_rnd_next 0
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flush status;
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delete from t1 order by a desc limit 1;
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show status like 'handler_read%';
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Variable_name Value
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Handler_read_first 0
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Handler_read_key 0
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Handler_read_last 1
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Handler_read_next 0
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Handler_read_prev 0
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Handler_read_rnd 0
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Handler_read_rnd_next 0
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alter table t1 disable keys;
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flush status;
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delete from t1 order by a limit 1;
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show status like 'handler_read%';
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Variable_name Value
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Handler_read_first 0
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Handler_read_key 0
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Handler_read_last 0
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Handler_read_next 0
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Handler_read_prev 0
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Handler_read_rnd 1
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Handler_read_rnd_next 9
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select * from t1;
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a b
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0 0
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0 0
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0 0
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0 0
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0 0
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update t1 set a=a+10,b=1 order by a limit 3;
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update t1 set a=a+11,b=2 order by a limit 3;
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update t1 set a=a+12,b=3 order by a limit 3;
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select * from t1 order by a;
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a b
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11 2
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21 2
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22 3
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22 3
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23 3
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drop table t1;
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create table t1 (f1 date not null);
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insert into t1 values('2000-01-01'),('0000-00-00');
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update t1 set f1='2002-02-02' where f1 is null;
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select * from t1;
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f1
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2000-01-01
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2002-02-02
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drop table t1;
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create table t1 (f1 int);
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create table t2 (f2 int);
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insert into t1 values(1),(2);
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insert into t2 values(1),(1);
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update t1,t2 set f1=3,f2=3 where f1=f2 and f1=1;
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affected rows: 3
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info: Rows matched: 3 Changed: 3 Warnings: 0
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update t2 set f2=1;
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update t1 set f1=1 where f1=3;
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update t2,t1 set f1=3,f2=3 where f1=f2 and f1=1;
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affected rows: 3
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info: Rows matched: 3 Changed: 3 Warnings: 0
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drop table t1,t2;
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create table t1 (a int);
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insert into t1 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
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create table t2 (a int, filler1 char(200), filler2 char(200), key(a));
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insert into t2 select A.a + 10*B.a, 'filler','filler' from t1 A, t1 B;
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flush status;
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update t2 set a=3 where a=2;
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show status like 'handler_read%';
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Variable_name Value
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Handler_read_first 0
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Handler_read_key 1
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Handler_read_last 0
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Handler_read_next 1
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Handler_read_prev 0
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Handler_read_rnd 1
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Handler_read_rnd_next 0
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drop table t1, t2;
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create table t1(f1 int, `*f2` int);
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insert into t1 values (1,1);
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update t1 set `*f2`=1;
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drop table t1;
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create table t1(f1 int);
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update t1 set f2=1 order by f2;
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ERROR 42S22: Unknown column 'f2' in 'order clause'
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drop table t1;
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CREATE TABLE t1 (
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request_id int unsigned NOT NULL auto_increment,
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user_id varchar(12) default NULL,
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time_stamp datetime NOT NULL default '0000-00-00 00:00:00',
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ip_address varchar(15) default NULL,
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PRIMARY KEY (request_id),
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KEY user_id_2 (user_id,time_stamp)
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);
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INSERT INTO t1 (user_id) VALUES ('user1');
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INSERT INTO t1(user_id) SELECT user_id FROM t1;
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INSERT INTO t1(user_id) SELECT user_id FROM t1;
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INSERT INTO t1(user_id) SELECT user_id FROM t1;
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INSERT INTO t1(user_id) SELECT user_id FROM t1;
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INSERT INTO t1(user_id) SELECT user_id FROM t1;
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INSERT INTO t1(user_id) SELECT user_id FROM t1;
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INSERT INTO t1(user_id) SELECT user_id FROM t1;
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INSERT INTO t1(user_id) SELECT user_id FROM t1;
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flush status;
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SELECT user_id FROM t1 WHERE request_id=9999999999999;
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user_id
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show status like '%Handler_read%';
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Variable_name Value
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Handler_read_first 0
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Handler_read_key 1
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Handler_read_last 0
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Handler_read_next 0
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Handler_read_prev 0
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Handler_read_rnd 0
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Handler_read_rnd_next 0
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SELECT user_id FROM t1 WHERE request_id=999999999999999999999999999999;
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user_id
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show status like '%Handler_read%';
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Variable_name Value
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Handler_read_first 0
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Handler_read_key 2
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Handler_read_last 0
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Handler_read_next 0
|
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Handler_read_prev 0
|
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Handler_read_rnd 0
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Handler_read_rnd_next 0
|
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UPDATE t1 SET user_id=null WHERE request_id=9999999999999;
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show status like '%Handler_read%';
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Variable_name Value
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Handler_read_first 0
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Handler_read_key 3
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Handler_read_last 0
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Handler_read_next 0
|
|
Handler_read_prev 0
|
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Handler_read_rnd 0
|
|
Handler_read_rnd_next 0
|
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UPDATE t1 SET user_id=null WHERE request_id=999999999999999999999999999999;
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show status like '%Handler_read%';
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Variable_name Value
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Handler_read_first 0
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Handler_read_key 3
|
|
Handler_read_last 0
|
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Handler_read_next 0
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Handler_read_prev 0
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Handler_read_rnd 0
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Handler_read_rnd_next 0
|
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DROP TABLE t1;
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|
CREATE TABLE t1 (
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a INT(11),
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quux decimal( 31, 30 ),
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UNIQUE KEY bar (a),
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KEY quux (quux)
|
|
);
|
|
INSERT INTO
|
|
t1 ( a, quux )
|
|
VALUES
|
|
( 1, 1 ),
|
|
( 2, 0.1 );
|
|
INSERT INTO t1( a )
|
|
SELECT @newA := 1 + a FROM t1 WHERE quux <= 0.1;
|
|
SELECT * FROM t1;
|
|
a quux
|
|
1 1.000000000000000000000000000000
|
|
2 0.100000000000000000000000000000
|
|
3 NULL
|
|
DROP TABLE t1;
|
|
set tmp_table_size=1024;
|
|
create table t1 (id int, a int, key idx(a));
|
|
create table t2 (id int unsigned not null auto_increment primary key, a int);
|
|
insert into t2(a) values(1),(2),(3),(4),(5),(6),(7),(8);
|
|
insert into t2(a) select a from t2;
|
|
insert into t2(a) select a from t2;
|
|
insert into t2(a) select a from t2;
|
|
update t2 set a=id;
|
|
insert into t1 select * from t2;
|
|
select count(*) from t1 join t2 on (t1.a=t2.a);
|
|
count(*)
|
|
64
|
|
update t1 join t2 on (t1.a=t2.a) set t1.id=t2.id;
|
|
affected rows: 0
|
|
info: Rows matched: 64 Changed: 0 Warnings: 0
|
|
insert into t2(a) select a from t2;
|
|
update t2 set a=id;
|
|
truncate t1;
|
|
insert into t1 select * from t2;
|
|
select count(*) from t1 join t2 on (t1.a=t2.a);
|
|
count(*)
|
|
128
|
|
update t1 join t2 on (t1.a=t2.a) set t1.id=t2.id;
|
|
affected rows: 0
|
|
info: Rows matched: 128 Changed: 0 Warnings: 0
|
|
update t1 set a=1;
|
|
update t2 set a=1;
|
|
select count(*) from t1 join t2 on (t1.a=t2.a);
|
|
count(*)
|
|
16384
|
|
update t1 join t2 on (t1.a=t2.a) set t1.id=t2.id;
|
|
affected rows: 127
|
|
info: Rows matched: 128 Changed: 127 Warnings: 0
|
|
drop table t1,t2;
|
|
DROP TABLE IF EXISTS t1;
|
|
DROP FUNCTION IF EXISTS f1;
|
|
CREATE FUNCTION f1() RETURNS INT RETURN f1();
|
|
CREATE TABLE t1 (i INT);
|
|
INSERT INTO t1 VALUES (1);
|
|
UPDATE t1 SET i = 3 WHERE f1();
|
|
ERROR HY000: Recursive stored functions and triggers are not allowed.
|
|
UPDATE t1 SET i = f1();
|
|
ERROR HY000: Recursive stored functions and triggers are not allowed.
|
|
DROP TABLE t1;
|
|
DROP FUNCTION f1;
|
|
End of 5.0 tests
|
|
#
|
|
# Bug #47919 assert in open_table during ALTER temporary table
|
|
#
|
|
CREATE TABLE t1 (f1 INTEGER AUTO_INCREMENT, PRIMARY KEY (f1));
|
|
CREATE TEMPORARY TABLE t2 LIKE t1;
|
|
INSERT INTO t1 VALUES (1);
|
|
INSERT INTO t2 VALUES (1);
|
|
ALTER TABLE t2 COMMENT = 'ABC';
|
|
UPDATE t2, t1 SET t2.f1 = 2, t1.f1 = 9;
|
|
ALTER TABLE t2 COMMENT = 'DEF';
|
|
DROP TABLE t1, t2;
|
|
#
|
|
# Bug#50545: Single table UPDATE IGNORE crashes on join view in
|
|
# sql_safe_updates mode.
|
|
#
|
|
CREATE TABLE t1 ( a INT, KEY( a ) );
|
|
INSERT INTO t1 VALUES (0), (1);
|
|
CREATE VIEW v1 AS SELECT t11.a, t12.a AS b FROM t1 t11, t1 t12;
|
|
SET SESSION sql_safe_updates = 1;
|
|
UPDATE IGNORE v1 SET a = 1;
|
|
ERROR HY000: You are using safe update mode and you tried to update a table without a WHERE that uses a KEY column
|
|
SET SESSION sql_safe_updates = DEFAULT;
|
|
DROP TABLE t1;
|
|
DROP VIEW v1;
|
|
#
|
|
# Bug#54734 assert in Diagnostics_area::set_ok_status
|
|
#
|
|
DROP TABLE IF EXISTS t1, not_exists;
|
|
DROP FUNCTION IF EXISTS f1;
|
|
DROP VIEW IF EXISTS v1;
|
|
CREATE TABLE t1 (PRIMARY KEY(pk)) AS SELECT 1 AS pk;
|
|
CREATE FUNCTION f1() RETURNS INTEGER RETURN (SELECT 1 FROM not_exists);
|
|
CREATE VIEW v1 AS SELECT pk FROM t1 WHERE f1() = 13;
|
|
UPDATE v1 SET pk = 7 WHERE pk > 0;
|
|
ERROR HY000: View 'test.v1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
|
|
DROP VIEW v1;
|
|
DROP FUNCTION f1;
|
|
DROP TABLE t1;
|
|
# Bug #21143080: UPDATE ON VARCHAR AND TEXT COLUMNS PRODUCE INCORRECT
|
|
# RESULTS
|
|
CREATE TABLE t1 (a VARCHAR(50), b TEXT, c CHAR(50)) ENGINE=INNODB;
|
|
INSERT INTO t1 (a, b, c) VALUES ('start trail', '', 'even longer string');
|
|
UPDATE t1 SET b = a, a = 'inject';
|
|
SELECT a, b FROM t1;
|
|
a b
|
|
inject start trail
|
|
UPDATE t1 SET b = c, c = 'inject';
|
|
SELECT c, b FROM t1;
|
|
c b
|
|
inject even longer string
|
|
DROP TABLE t1;
|