mirror of
https://github.com/MariaDB/server.git
synced 2025-01-19 21:42:35 +01:00
cab1dc628c
New multi-key-cache handling. This was needed becasue the old one didn't work reliable with MERGE tables.
ALTER TABLE table_name ... CHARACTER SET ... now changes all char/varchar/text columns to the given character set
(One must use ALTER TABLE ... DEFAULT CHARACTER SET ... to change the default character set)
Fixed that have_compress is detected properly (fixes problems with func_compress.test on platforms without zlib)
New syntax for CACHE INDEX ('keys' is optional if no index name is given and one mentions the key cache name only ones)
Removed compiler warnings
Added mysql_set_server_option() to allow clients like PHP to easaily set/reset the multi-statement flag.
250 lines
9.5 KiB
Text
250 lines
9.5 KiB
Text
drop table if exists t1,t2;
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create table t1 (a int not null primary key, b int not null,c int not null, key(b,c));
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insert into t1 values (1,2,2),(2,2,3),(3,2,4),(4,2,4);
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check table t1 fast;
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Table Op Msg_type Msg_text
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test.t1 check status Table is already up to date
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check table t1 fast;
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Table Op Msg_type Msg_text
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test.t1 check status Table is already up to date
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check table t1 changed;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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insert into t1 values (5,5,5);
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check table t1 changed;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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check table t1 medium;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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check table t1 extended;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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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 a A 5 NULL NULL BTREE
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t1 1 b 1 b A 1 NULL NULL BTREE
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t1 1 b 2 c A 5 NULL NULL BTREE
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insert into t1 values (5,5,5);
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ERROR 23000: Duplicate entry '5' for key 1
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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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optimize table t1;
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Table Op Msg_type Msg_text
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test.t1 optimize status Table is already up to date
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drop table t1;
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show variables like "wait_timeout%";
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Variable_name Value
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wait_timeout 28800
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show variables like "WAIT_timeout%";
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Variable_name Value
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wait_timeout 28800
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show variables like "this_doesn't_exists%";
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Variable_name Value
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show table status from test like "this_doesn't_exists%";
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Name Type Row_format Rows Avg_row_length Data_length Max_data_length Index_length Data_free Auto_increment Create_time Update_time Check_time Collation Checksum Create_options Comment
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show databases;
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Database
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mysql
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test
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show databases like "test%";
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Database (test%)
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test
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create table t1 (f1 int not null, f2 int not null, f3 int not null, f4 int not null, primary key(f1,f2,f3,f4));
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insert into t1 values (1,1,1,0),(1,1,2,0),(1,1,3,0),(1,2,1,0),(1,2,2,0),(1,2,3,0),(1,3,1,0),(1,3,2,0),(1,3,3,0),(1,1,1,1),(1,1,2,1),(1,1,3,1),(1,2,1,1),(1,2,2,1),(1,2,3,1),(1,3,1,1),(1,3,2,1),(1,3,3,1);
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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 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 f1 A 1 NULL NULL BTREE
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t1 0 PRIMARY 2 f2 A 3 NULL NULL BTREE
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t1 0 PRIMARY 3 f3 A 9 NULL NULL BTREE
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t1 0 PRIMARY 4 f4 A 18 NULL NULL BTREE
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repair table t1;
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Table Op Msg_type Msg_text
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test.t1 repair status OK
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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 f1 A 1 NULL NULL BTREE
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t1 0 PRIMARY 2 f2 A 3 NULL NULL BTREE
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t1 0 PRIMARY 3 f3 A 9 NULL NULL BTREE
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t1 0 PRIMARY 4 f4 A 18 NULL NULL BTREE
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drop table t1;
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create temporary table t1 (a int not null);
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show create table t1;
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Table Create Table
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t1 CREATE TEMPORARY TABLE `t1` (
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`a` int(11) NOT NULL default '0'
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) TYPE=MyISAM DEFAULT CHARSET=latin1
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alter table t1 rename t2;
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show create table t2;
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Table Create Table
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t2 CREATE TEMPORARY TABLE `t2` (
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`a` int(11) NOT NULL default '0'
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) TYPE=MyISAM DEFAULT CHARSET=latin1
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drop table t2;
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create table t1 (
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test_set set( 'val1', 'val2', 'val3' ) not null default '',
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name char(20) default 'O''Brien' comment 'O''Brien as default',
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c int not null comment 'int column'
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) comment = 'it\'s a table' ;
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show create table t1 ;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`test_set` set('val1','val2','val3') NOT NULL default '',
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`name` char(20) default 'O''Brien' COMMENT 'O''Brien as default',
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`c` int(11) NOT NULL default '0' COMMENT 'int column'
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) TYPE=MyISAM DEFAULT CHARSET=latin1 COMMENT='it''s a table'
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show full columns from t1;
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Field Type Collation Null Key Default Extra Privileges Comment
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test_set set('val1','val2','val3') latin1_swedish_ci select,insert,update,references
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name char(20) latin1_swedish_ci YES O'Brien select,insert,update,references O'Brien as default
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c int(11) NULL 0 select,insert,update,references int column
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drop table t1;
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create table t1 (a int not null, unique aa (a));
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) NOT NULL default '0',
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UNIQUE KEY `aa` (`a`)
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) TYPE=MyISAM DEFAULT CHARSET=latin1
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drop table t1;
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create table t1 (a int not null, primary key (a));
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) NOT NULL default '0',
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PRIMARY KEY (`a`)
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) TYPE=MyISAM DEFAULT CHARSET=latin1
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drop table t1;
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flush tables;
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show open tables;
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Database Table In_use Name_locked
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create table t1(n int);
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insert into t1 values (1);
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show open tables;
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Database Table In_use Name_locked
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test t1 0 0
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drop table t1;
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create table t1 (a int not null, b VARCHAR(10), INDEX (b) ) AVG_ROW_LENGTH=10 CHECKSUM=1 COMMENT="test" TYPE=MYISAM MIN_ROWS=10 MAX_ROWS=100 PACK_KEYS=1 DELAY_KEY_WRITE=1 ROW_FORMAT=fixed;
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) NOT NULL default '0',
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`b` char(10) default NULL,
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KEY `b` (`b`)
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) TYPE=MyISAM DEFAULT CHARSET=latin1 MIN_ROWS=10 MAX_ROWS=100 AVG_ROW_LENGTH=10 PACK_KEYS=1 CHECKSUM=1 DELAY_KEY_WRITE=1 ROW_FORMAT=FIXED COMMENT='test'
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alter table t1 MAX_ROWS=200 ROW_FORMAT=dynamic PACK_KEYS=0;
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) NOT NULL default '0',
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`b` varchar(10) default NULL,
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KEY `b` (`b`)
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) TYPE=MyISAM DEFAULT CHARSET=latin1 MIN_ROWS=10 MAX_ROWS=200 AVG_ROW_LENGTH=10 PACK_KEYS=0 CHECKSUM=1 DELAY_KEY_WRITE=1 ROW_FORMAT=DYNAMIC COMMENT='test'
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ALTER TABLE t1 AVG_ROW_LENGTH=0 CHECKSUM=0 COMMENT="" MIN_ROWS=0 MAX_ROWS=0 PACK_KEYS=DEFAULT DELAY_KEY_WRITE=0 ROW_FORMAT=default;
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) NOT NULL default '0',
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`b` varchar(10) default NULL,
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KEY `b` (`b`)
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) TYPE=MyISAM DEFAULT CHARSET=latin1
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drop table t1;
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create table t1 (a decimal(9,2), b decimal (9,0), e double(9,2), f double(5,0), h float(3,2), i float(3,0));
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show columns from t1;
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Field Type Null Key Default Extra
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a decimal(9,2) YES NULL
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b decimal(9,0) YES NULL
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e double(9,2) YES NULL
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f double(5,0) YES NULL
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h float(3,2) YES NULL
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i float(3,0) YES NULL
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show full columns from t1;
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Field Type Collation Null Key Default Extra Privileges Comment
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a decimal(9,2) NULL YES NULL select,insert,update,references
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b decimal(9,0) NULL YES NULL select,insert,update,references
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e double(9,2) NULL YES NULL select,insert,update,references
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f double(5,0) NULL YES NULL select,insert,update,references
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h float(3,2) NULL YES NULL select,insert,update,references
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i float(3,0) NULL YES NULL select,insert,update,references
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drop table t1;
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create table t1 (
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type_bool bool not null,
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type_tiny tinyint not null auto_increment primary key,
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type_short smallint(3),
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type_mediumint mediumint,
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type_bigint bigint,
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type_decimal decimal(5,2),
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type_numeric numeric(5,2),
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empty_char char(0),
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type_char char(2),
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type_varchar varchar(10),
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type_timestamp timestamp not null,
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type_date date not null,
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type_time time not null,
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type_datetime datetime not null,
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type_year year,
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type_enum enum ('red', 'green', 'blue'),
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type_set enum ('red', 'green', 'blue'),
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type_tinyblob tinyblob,
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type_blob blob,
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type_medium_blob mediumblob,
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type_long_blob longblob,
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index(type_short)
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) AVG_ROW_LENGTH=10 CHECKSUM=1 COMMENT="test" TYPE=MYISAM MIN_ROWS=10 MAX_ROWS=100 PACK_KEYS=1 DELAY_KEY_WRITE=1 ROW_FORMAT=fixed CHARSET=latin1;
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show create table t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`type_bool` tinyint(1) NOT NULL default '0',
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`type_tiny` tinyint(4) NOT NULL auto_increment,
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`type_short` smallint(3) default NULL,
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`type_mediumint` mediumint(9) default NULL,
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`type_bigint` bigint(20) default NULL,
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`type_decimal` decimal(5,2) default NULL,
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`type_numeric` decimal(5,2) default NULL,
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`empty_char` char(0) default NULL,
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`type_char` char(2) default NULL,
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`type_varchar` varchar(10) default NULL,
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`type_timestamp` timestamp NOT NULL,
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`type_date` date NOT NULL default '0000-00-00',
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`type_time` time NOT NULL default '00:00:00',
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`type_datetime` datetime NOT NULL default '0000-00-00 00:00:00',
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`type_year` year(4) default NULL,
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`type_enum` enum('red','green','blue') default NULL,
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`type_set` enum('red','green','blue') default NULL,
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`type_tinyblob` tinyblob,
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`type_blob` blob,
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`type_medium_blob` mediumblob,
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`type_long_blob` longblob,
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PRIMARY KEY (`type_tiny`),
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KEY `type_short` (`type_short`)
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) TYPE=MyISAM DEFAULT CHARSET=latin1 MIN_ROWS=10 MAX_ROWS=100 AVG_ROW_LENGTH=10 PACK_KEYS=1 CHECKSUM=1 DELAY_KEY_WRITE=1 ROW_FORMAT=FIXED COMMENT='test'
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insert into t1 (type_timestamp) values ("2003-02-07 10:00:01");
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select * from t1;
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type_bool type_tiny type_short type_mediumint type_bigint type_decimal type_numeric empty_char type_char type_varchar type_timestamp type_date type_time type_datetime type_year type_enum type_set type_tinyblob type_blob type_medium_blob type_long_blob
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0 1 NULL NULL NULL NULL NULL NULL NULL NULL 2003-02-07 10:00:01 0000-00-00 00:00:00 0000-00-00 00:00:00 NULL NULL NULL NULL NULL NULL NULL
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drop table t1;
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create table t1 (a int not null);
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create table t2 select max(a) from t1;
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show columns from t2;
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Field Type Null Key Default Extra
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max(a) bigint(20) YES NULL
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drop table t1,t2;
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create table t1 (c decimal, d double, f float, r real);
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show columns from t1;
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Field Type Null Key Default Extra
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c decimal(10,0) YES NULL
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d double YES NULL
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f float YES NULL
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r double YES NULL
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drop table t1;
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create table t1 (c decimal(3,3), d double(3,3), f float(3,3));
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show columns from t1;
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Field Type Null Key Default Extra
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c decimal(4,3) YES NULL
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d double(4,3) YES NULL
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f float(4,3) YES NULL
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drop table t1;
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