mirror of
https://github.com/MariaDB/server.git
synced 2025-01-19 05:22:25 +01:00
23145cfed7
bmove_allign -> bmove_align Added OLAP function ROLLUP Split mysql_fix_privilege_tables to a script and a .sql data file Added new (MEMROOT*) functions to avoid calling current_thd() when creating some common objects. Added table_alias_charset, for easier --lower-case-table-name handling Better SQL_MODE handling (Setting complex options also sets sub options) New (faster) assembler string functions for x86
171 lines
4.4 KiB
Text
171 lines
4.4 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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111
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145
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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(14),
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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(14) 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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) TYPE=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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) TYPE=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 t1 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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