mirror of
https://github.com/MariaDB/server.git
synced 2025-01-19 13:32:33 +01:00
e13e857cae
Removed double my_thread_end() which caused fatal error on windows if mysqld died on startup myisam/mi_extra.c: Fixed bug in ALTER TABLE ... DISABLE/ENABLE KEYS mysql-test/r/alter_table.result: Fixed bug in ALTER TABLE ... DISABLE/ENABLE KEYS mysql-test/t/alter_table.test: Test DISABLE/ENABLE KEY sql/ha_myisam.cc: Fixed bug in ALTER TABLE ... DISABLE/ENABLE KEYS sql/mysqld.cc: Removed double my_thread_end() which caused fatal error on windows if mysqld died on startup sql/sql_table.cc: Fixed bug in ALTER TABLE ... DISABLE/ENABLE KEYS sql/table.cc: Fixed bug in ALTER TABLE ... DISABLE/ENABLE KEYS sql/table.h: Fixed bug in ALTER TABLE ... DISABLE/ENABLE KEYS
352 lines
13 KiB
Text
352 lines
13 KiB
Text
drop table if exists t1,t2;
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create table t1 (
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col1 int not null auto_increment primary key,
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col2 varchar(30) not null,
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col3 varchar (20) not null,
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col4 varchar(4) not null,
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col5 enum('PENDING', 'ACTIVE', 'DISABLED') not null,
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col6 int not null, to_be_deleted int);
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insert into t1 values (2,4,3,5,"PENDING",1,7);
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alter table t1
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add column col4_5 varchar(20) not null after col4,
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add column col7 varchar(30) not null after col5,
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add column col8 datetime not null, drop column to_be_deleted,
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change column col2 fourth varchar(30) not null after col3,
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modify column col6 int not null first;
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select * from t1;
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col6 col1 col3 fourth col4 col4_5 col5 col7 col8
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1 2 3 4 5 PENDING 0000-00-00 00:00:00
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drop table t1;
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create table t1 (bandID MEDIUMINT UNSIGNED NOT NULL PRIMARY KEY, payoutID SMALLINT UNSIGNED NOT NULL);
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insert into t1 (bandID,payoutID) VALUES (1,6),(2,6),(3,4),(4,9),(5,10),(6,1),(7,12),(8,12);
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alter table t1 add column new_col int, order by payoutid,bandid;
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select * from t1;
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bandID payoutID new_col
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6 1 NULL
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3 4 NULL
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1 6 NULL
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2 6 NULL
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4 9 NULL
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5 10 NULL
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7 12 NULL
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8 12 NULL
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alter table t1 order by bandid,payoutid;
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select * from t1;
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bandID payoutID new_col
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1 6 NULL
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2 6 NULL
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3 4 NULL
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4 9 NULL
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5 10 NULL
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6 1 NULL
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7 12 NULL
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8 12 NULL
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drop table t1;
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CREATE TABLE t1 (
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GROUP_ID int(10) unsigned DEFAULT '0' NOT NULL,
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LANG_ID smallint(5) unsigned DEFAULT '0' NOT NULL,
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NAME varchar(80) DEFAULT '' NOT NULL,
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PRIMARY KEY (GROUP_ID,LANG_ID),
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KEY NAME (NAME));
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ALTER TABLE t1 CHANGE NAME NAME CHAR(80) not null;
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SHOW FULL COLUMNS FROM t1;
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Field Type Null Key Default Extra Privileges
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GROUP_ID int(10) unsigned PRI 0 select,insert,update,references
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LANG_ID smallint(5) unsigned PRI 0 select,insert,update,references
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NAME char(80) MUL select,insert,update,references
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DROP TABLE t1;
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create table t1 (n int);
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insert into t1 values(9),(3),(12),(10);
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alter table t1 order by n;
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select * from t1;
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n
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3
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9
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10
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12
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drop table t1;
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CREATE TABLE t1 (
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id int(11) unsigned NOT NULL default '0',
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category_id tinyint(4) unsigned NOT NULL default '0',
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type_id tinyint(4) unsigned NOT NULL default '0',
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body text NOT NULL,
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user_id int(11) unsigned NOT NULL default '0',
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status enum('new','old') NOT NULL default 'new',
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PRIMARY KEY (id)
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) TYPE=MyISAM;
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ALTER TABLE t1 ORDER BY t1.id, t1.status, t1.type_id, t1.user_id, t1.body;
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DROP TABLE t1;
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CREATE TABLE t1 (AnamneseId int(10) unsigned NOT NULL auto_increment,B BLOB,PRIMARY KEY (AnamneseId)) type=myisam;
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insert into t1 values (null,"hello");
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LOCK TABLES t1 WRITE;
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ALTER TABLE t1 ADD Column new_col int not null;
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UNLOCK TABLES;
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OPTIMIZE TABLE t1;
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Table Op Msg_type Msg_text
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test.t1 optimize status OK
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DROP TABLE t1;
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create table t1 (n1 int not null, n2 int, n3 int, n4 float,
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unique(n1),
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key (n1, n2, n3, n4),
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key (n2, n3, n4, n1),
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key (n3, n4, n1, n2),
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key (n4, n1, n2, n3) );
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alter table t1 disable keys;
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show keys from t1;
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Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
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t1 0 n1 1 n1 A 0 NULL NULL BTREE
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t1 1 n1_2 1 n1 A NULL NULL NULL BTREE disabled
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t1 1 n1_2 2 n2 A NULL NULL NULL YES BTREE disabled
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t1 1 n1_2 3 n3 A NULL NULL NULL YES BTREE disabled
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t1 1 n1_2 4 n4 A NULL NULL NULL YES BTREE disabled
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t1 1 n2 1 n2 A NULL NULL NULL YES BTREE disabled
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t1 1 n2 2 n3 A NULL NULL NULL YES BTREE disabled
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t1 1 n2 3 n4 A NULL NULL NULL YES BTREE disabled
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t1 1 n2 4 n1 A NULL NULL NULL BTREE disabled
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t1 1 n3 1 n3 A NULL NULL NULL YES BTREE disabled
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t1 1 n3 2 n4 A NULL NULL NULL YES BTREE disabled
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t1 1 n3 3 n1 A NULL NULL NULL BTREE disabled
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t1 1 n3 4 n2 A NULL NULL NULL YES BTREE disabled
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t1 1 n4 1 n4 A NULL NULL NULL YES BTREE disabled
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t1 1 n4 2 n1 A NULL NULL NULL BTREE disabled
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t1 1 n4 3 n2 A NULL NULL NULL YES BTREE disabled
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t1 1 n4 4 n3 A NULL NULL NULL YES BTREE disabled
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insert into t1 values(10,RAND()*1000,RAND()*1000,RAND());
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insert into t1 values(9,RAND()*1000,RAND()*1000,RAND());
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insert into t1 values(8,RAND()*1000,RAND()*1000,RAND());
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insert into t1 values(7,RAND()*1000,RAND()*1000,RAND());
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insert into t1 values(6,RAND()*1000,RAND()*1000,RAND());
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insert into t1 values(5,RAND()*1000,RAND()*1000,RAND());
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insert into t1 values(4,RAND()*1000,RAND()*1000,RAND());
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insert into t1 values(3,RAND()*1000,RAND()*1000,RAND());
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insert into t1 values(2,RAND()*1000,RAND()*1000,RAND());
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insert into t1 values(1,RAND()*1000,RAND()*1000,RAND());
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alter table t1 enable keys;
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show keys from t1;
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Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
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t1 0 n1 1 n1 A 10 NULL NULL BTREE
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t1 1 n1_2 1 n1 A 10 NULL NULL BTREE
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t1 1 n1_2 2 n2 A 10 NULL NULL YES BTREE
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t1 1 n1_2 3 n3 A 10 NULL NULL YES BTREE
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t1 1 n1_2 4 n4 A 10 NULL NULL YES BTREE
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t1 1 n2 1 n2 A 10 NULL NULL YES BTREE
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t1 1 n2 2 n3 A 10 NULL NULL YES BTREE
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t1 1 n2 3 n4 A 10 NULL NULL YES BTREE
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t1 1 n2 4 n1 A 10 NULL NULL BTREE
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t1 1 n3 1 n3 A 10 NULL NULL YES BTREE
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t1 1 n3 2 n4 A 10 NULL NULL YES BTREE
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t1 1 n3 3 n1 A 10 NULL NULL BTREE
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t1 1 n3 4 n2 A 10 NULL NULL YES BTREE
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t1 1 n4 1 n4 A 10 NULL NULL YES BTREE
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t1 1 n4 2 n1 A 10 NULL NULL BTREE
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t1 1 n4 3 n2 A 10 NULL NULL YES BTREE
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t1 1 n4 4 n3 A 10 NULL NULL YES BTREE
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drop table t1;
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create table t1 (i int unsigned not null auto_increment primary key);
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insert into t1 values (null),(null),(null),(null);
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alter table t1 drop i,add i int unsigned not null auto_increment, drop primary key, add primary key (i);
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select * from t1;
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i
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1
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2
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3
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4
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drop table t1;
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create table t1 (i int unsigned not null auto_increment primary key);
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alter table t1 rename t2;
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alter table t2 rename t1, add c char(10) comment "no comment";
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show columns from t1;
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Field Type Null Key Default Extra
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i int(10) unsigned PRI NULL auto_increment
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c char(10) YES NULL
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drop table t1;
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create table t1 (a int, b int);
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insert into t1 values(1,100), (2,100), (3, 100);
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insert into t1 values(1,99), (2,99), (3, 99);
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insert into t1 values(1,98), (2,98), (3, 98);
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insert into t1 values(1,97), (2,97), (3, 97);
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insert into t1 values(1,96), (2,96), (3, 96);
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insert into t1 values(1,95), (2,95), (3, 95);
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insert into t1 values(1,94), (2,94), (3, 94);
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insert into t1 values(1,93), (2,93), (3, 93);
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insert into t1 values(1,92), (2,92), (3, 92);
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insert into t1 values(1,91), (2,91), (3, 91);
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insert into t1 values(1,90), (2,90), (3, 90);
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insert into t1 values(1,89), (2,89), (3, 89);
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insert into t1 values(1,88), (2,88), (3, 88);
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insert into t1 values(1,87), (2,87), (3, 87);
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insert into t1 values(1,86), (2,86), (3, 86);
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insert into t1 values(1,85), (2,85), (3, 85);
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insert into t1 values(1,84), (2,84), (3, 84);
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insert into t1 values(1,83), (2,83), (3, 83);
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insert into t1 values(1,82), (2,82), (3, 82);
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insert into t1 values(1,81), (2,81), (3, 81);
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insert into t1 values(1,80), (2,80), (3, 80);
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insert into t1 values(1,79), (2,79), (3, 79);
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insert into t1 values(1,78), (2,78), (3, 78);
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insert into t1 values(1,77), (2,77), (3, 77);
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insert into t1 values(1,76), (2,76), (3, 76);
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insert into t1 values(1,75), (2,75), (3, 75);
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insert into t1 values(1,74), (2,74), (3, 74);
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insert into t1 values(1,73), (2,73), (3, 73);
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insert into t1 values(1,72), (2,72), (3, 72);
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insert into t1 values(1,71), (2,71), (3, 71);
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insert into t1 values(1,70), (2,70), (3, 70);
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insert into t1 values(1,69), (2,69), (3, 69);
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insert into t1 values(1,68), (2,68), (3, 68);
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insert into t1 values(1,67), (2,67), (3, 67);
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insert into t1 values(1,66), (2,66), (3, 66);
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insert into t1 values(1,65), (2,65), (3, 65);
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insert into t1 values(1,64), (2,64), (3, 64);
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insert into t1 values(1,63), (2,63), (3, 63);
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insert into t1 values(1,62), (2,62), (3, 62);
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insert into t1 values(1,61), (2,61), (3, 61);
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insert into t1 values(1,60), (2,60), (3, 60);
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insert into t1 values(1,59), (2,59), (3, 59);
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insert into t1 values(1,58), (2,58), (3, 58);
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insert into t1 values(1,57), (2,57), (3, 57);
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insert into t1 values(1,56), (2,56), (3, 56);
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insert into t1 values(1,55), (2,55), (3, 55);
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insert into t1 values(1,54), (2,54), (3, 54);
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insert into t1 values(1,53), (2,53), (3, 53);
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insert into t1 values(1,52), (2,52), (3, 52);
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insert into t1 values(1,51), (2,51), (3, 51);
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insert into t1 values(1,50), (2,50), (3, 50);
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insert into t1 values(1,49), (2,49), (3, 49);
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insert into t1 values(1,48), (2,48), (3, 48);
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insert into t1 values(1,47), (2,47), (3, 47);
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insert into t1 values(1,46), (2,46), (3, 46);
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insert into t1 values(1,45), (2,45), (3, 45);
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insert into t1 values(1,44), (2,44), (3, 44);
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insert into t1 values(1,43), (2,43), (3, 43);
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insert into t1 values(1,42), (2,42), (3, 42);
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insert into t1 values(1,41), (2,41), (3, 41);
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insert into t1 values(1,40), (2,40), (3, 40);
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insert into t1 values(1,39), (2,39), (3, 39);
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insert into t1 values(1,38), (2,38), (3, 38);
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insert into t1 values(1,37), (2,37), (3, 37);
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insert into t1 values(1,36), (2,36), (3, 36);
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insert into t1 values(1,35), (2,35), (3, 35);
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insert into t1 values(1,34), (2,34), (3, 34);
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insert into t1 values(1,33), (2,33), (3, 33);
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insert into t1 values(1,32), (2,32), (3, 32);
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insert into t1 values(1,31), (2,31), (3, 31);
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insert into t1 values(1,30), (2,30), (3, 30);
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insert into t1 values(1,29), (2,29), (3, 29);
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insert into t1 values(1,28), (2,28), (3, 28);
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insert into t1 values(1,27), (2,27), (3, 27);
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insert into t1 values(1,26), (2,26), (3, 26);
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insert into t1 values(1,25), (2,25), (3, 25);
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insert into t1 values(1,24), (2,24), (3, 24);
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insert into t1 values(1,23), (2,23), (3, 23);
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insert into t1 values(1,22), (2,22), (3, 22);
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insert into t1 values(1,21), (2,21), (3, 21);
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insert into t1 values(1,20), (2,20), (3, 20);
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insert into t1 values(1,19), (2,19), (3, 19);
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insert into t1 values(1,18), (2,18), (3, 18);
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insert into t1 values(1,17), (2,17), (3, 17);
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insert into t1 values(1,16), (2,16), (3, 16);
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insert into t1 values(1,15), (2,15), (3, 15);
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insert into t1 values(1,14), (2,14), (3, 14);
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insert into t1 values(1,13), (2,13), (3, 13);
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insert into t1 values(1,12), (2,12), (3, 12);
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insert into t1 values(1,11), (2,11), (3, 11);
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insert into t1 values(1,10), (2,10), (3, 10);
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insert into t1 values(1,9), (2,9), (3, 9);
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insert into t1 values(1,8), (2,8), (3, 8);
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insert into t1 values(1,7), (2,7), (3, 7);
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insert into t1 values(1,6), (2,6), (3, 6);
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insert into t1 values(1,5), (2,5), (3, 5);
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insert into t1 values(1,4), (2,4), (3, 4);
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insert into t1 values(1,3), (2,3), (3, 3);
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insert into t1 values(1,2), (2,2), (3, 2);
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insert into t1 values(1,1), (2,1), (3, 1);
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alter table t1 add unique (a,b), add key (b);
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show keys from t1;
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Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
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t1 0 a 1 a A NULL NULL NULL YES BTREE
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t1 0 a 2 b A NULL NULL NULL YES BTREE
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t1 1 b 1 b A 100 NULL NULL YES BTREE
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analyze table t1;
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Table Op Msg_type Msg_text
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test.t1 analyze status OK
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show keys from t1;
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Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
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t1 0 a 1 a A 3 NULL NULL YES BTREE
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t1 0 a 2 b A 300 NULL NULL YES BTREE
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t1 1 b 1 b A 100 NULL NULL YES BTREE
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drop table t1;
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CREATE TABLE t1 (i int(10), index(i) );
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ALTER TABLE t1 DISABLE KEYS;
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INSERT DELAYED INTO t1 VALUES(1),(2),(3);
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ALTER TABLE t1 ENABLE KEYS;
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drop table t1;
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CREATE TABLE t1 (
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Host varchar(16) binary NOT NULL default '',
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User varchar(16) binary NOT NULL default '',
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PRIMARY KEY (Host,User)
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) TYPE=MyISAM;
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ALTER TABLE t1 DISABLE KEYS;
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LOCK TABLES t1 WRITE;
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INSERT INTO t1 VALUES ('localhost','root'),('localhost',''),('games','monty');
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SHOW INDEX FROM t1;
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Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
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t1 0 PRIMARY 1 Host A NULL NULL NULL BTREE
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t1 0 PRIMARY 2 User A 3 NULL NULL BTREE
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ALTER TABLE t1 ENABLE KEYS;
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UNLOCK TABLES;
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CHECK TABLES t1;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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DROP TABLE t1;
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CREATE TABLE t1 (
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Host varchar(16) binary NOT NULL default '',
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User varchar(16) binary NOT NULL default '',
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PRIMARY KEY (Host,User),
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KEY (Host)
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) TYPE=MyISAM;
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ALTER TABLE t1 DISABLE KEYS;
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SHOW INDEX FROM t1;
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Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
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t1 0 PRIMARY 1 Host A NULL NULL NULL BTREE
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t1 0 PRIMARY 2 User A 0 NULL NULL BTREE
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t1 1 Host 1 Host A NULL NULL NULL BTREE disabled
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LOCK TABLES t1 WRITE;
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INSERT INTO t1 VALUES ('localhost','root'),('localhost','');
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SHOW INDEX FROM t1;
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Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
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t1 0 PRIMARY 1 Host A NULL NULL NULL BTREE
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t1 0 PRIMARY 2 User A 2 NULL NULL BTREE
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t1 1 Host 1 Host A NULL NULL NULL BTREE disabled
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ALTER TABLE t1 ENABLE KEYS;
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SHOW INDEX FROM t1;
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Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
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t1 0 PRIMARY 1 Host A NULL NULL NULL BTREE
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t1 0 PRIMARY 2 User A 2 NULL NULL BTREE
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t1 1 Host 1 Host A 1 NULL NULL BTREE
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UNLOCK TABLES;
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CHECK TABLES t1;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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LOCK TABLES t1 WRITE;
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ALTER TABLE t1 RENAME t2;
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UNLOCK TABLES;
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select * from t2;
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Host User
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localhost
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localhost root
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DROP TABLE t2;
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CREATE TABLE t1 (
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Host varchar(16) binary NOT NULL default '',
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User varchar(16) binary NOT NULL default '',
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PRIMARY KEY (Host,User),
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KEY (Host)
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) TYPE=MyISAM;
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LOCK TABLES t1 WRITE;
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ALTER TABLE t1 DISABLE KEYS;
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SHOW INDEX FROM t1;
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Table Non_unique Key_name Seq_in_index Column_name Collation Cardinality Sub_part Packed Null Index_type Comment
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t1 0 PRIMARY 1 Host A NULL NULL NULL BTREE
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t1 0 PRIMARY 2 User A 0 NULL NULL BTREE
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t1 1 Host 1 Host A NULL NULL NULL BTREE disabled
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DROP TABLE t1;
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