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847 lines
30 KiB
847 lines
30 KiB
SET SQL_WARNINGS=1;
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CREATE TABLE t1 (
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ID CHAR(32) NOT NULL,
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name CHAR(32) NOT NULL,
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value CHAR(255),
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INDEX indexIDname (ID(8),name(8))
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) ;
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INSERT INTO t1 VALUES
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('keyword','indexdir','/export/home/local/www/database/indexes/keyword');
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INSERT INTO t1 VALUES ('keyword','urlprefix','text/ /text');
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INSERT INTO t1 VALUES ('keyword','urlmap','/text/ /');
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INSERT INTO t1 VALUES ('keyword','attr','personal employee company');
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INSERT INTO t1 VALUES
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('emailgids','indexdir','/export/home/local/www/database/indexes/emailgids');
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INSERT INTO t1 VALUES ('emailgids','urlprefix','text/ /text');
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INSERT INTO t1 VALUES ('emailgids','urlmap','/text/ /');
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INSERT INTO t1 VALUES ('emailgids','attr','personal employee company');
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SELECT value FROM t1 WHERE ID='emailgids' AND name='attr';
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value
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personal employee company
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drop table t1;
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CREATE TABLE t1 (
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price int(5) DEFAULT '0' NOT NULL,
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area varchar(40) DEFAULT '' NOT NULL,
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type varchar(40) DEFAULT '' NOT NULL,
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transityes enum('Y','N') DEFAULT 'Y' NOT NULL,
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shopsyes enum('Y','N') DEFAULT 'Y' NOT NULL,
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schoolsyes enum('Y','N') DEFAULT 'Y' NOT NULL,
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petsyes enum('Y','N') DEFAULT 'Y' NOT NULL,
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KEY price (price,area,type,transityes,shopsyes,schoolsyes,petsyes)
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);
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Warnings:
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Warning 1681 Integer display width is deprecated and will be removed in a future release.
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INSERT INTO t1 VALUES (900,'Vancouver','Shared/Roomate','N','N','N','N');
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INSERT INTO t1 VALUES (900,'Vancouver','Shared/Roomate','N','N','N','N');
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INSERT IGNORE INTO t1 VALUES (900,'Vancouver','Shared/Roomate','','','','');
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Warnings:
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Warning 1265 Data truncated for column 'transityes' at row 1
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Warning 1265 Data truncated for column 'shopsyes' at row 1
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Warning 1265 Data truncated for column 'schoolsyes' at row 1
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Warning 1265 Data truncated for column 'petsyes' at row 1
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INSERT INTO t1 VALUES (900,'Vancouver','Shared/Roomate','Y','Y','Y','Y');
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INSERT INTO t1 VALUES (900,'Vancouver','Shared/Roomate','Y','Y','Y','Y');
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INSERT INTO t1 VALUES (900,'Vancouver','Shared/Roomate','Y','Y','Y','Y');
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INSERT INTO t1 VALUES (900,'Vancouver','Shared/Roomate','Y','Y','Y','Y');
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INSERT INTO t1 VALUES (900,'Vancouver','Shared/Roomate','Y','Y','Y','Y');
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SELECT * FROM t1 WHERE area='Vancouver' and transityes='y' and schoolsyes='y' and ( ((type='1 Bedroom' or type='Studio/Bach') and (price<=500)) or ((type='2 Bedroom') and (price<=550)) or ((type='Shared/Roomate') and (price<=300)) or ((type='Room and Board') and (price<=500)) ) and price <= 400;
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price area type transityes shopsyes schoolsyes petsyes
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drop table t1;
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CREATE TABLE t1 (program enum('signup','unique','sliding') not null, type enum('basic','sliding','signup'), sites set('mt'), PRIMARY KEY (program));
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ALTER TABLE t1 modify program enum('signup','unique','sliding');
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drop table t1;
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CREATE TABLE t1 (
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name varchar(50) DEFAULT '' NOT NULL,
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author varchar(50) DEFAULT '' NOT NULL,
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category decimal(10,0) DEFAULT '0' NOT NULL,
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email varchar(50),
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password varchar(50),
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proxy varchar(50),
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bitmap varchar(20),
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msg varchar(255),
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urlscol varchar(127),
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urlhttp varchar(127),
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timeout decimal(10,0),
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nbcnx decimal(10,0),
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creation decimal(10,0),
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livinguntil decimal(10,0),
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lang decimal(10,0),
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type decimal(10,0),
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subcat decimal(10,0),
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subtype decimal(10,0),
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reg char(1),
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scs varchar(255),
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capacity decimal(10,0),
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userISP varchar(50),
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CCident varchar(50) DEFAULT '' NOT NULL,
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PRIMARY KEY (name,author,category)
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);
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INSERT INTO t1 VALUES
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('patnom','patauteur',0,'p.favre@cryo-networks.fr',NULL,NULL,'#p2sndnq6ae5g1u6t','essai salut','scol://195.242.78.119:patauteur.patnom',NULL,NULL,NULL,950036174,-882087474,NULL,3,0,3,'1','Pub/patnom/futur_divers.scs',NULL,'pat','CC1');
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INSERT INTO t1 VALUES
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('LeNomDeMonSite','Marc',0,'m.barilley@cryo-networks.fr',NULL,NULL,NULL,NULL,'scol://195.242.78.119:Marc.LeNomDeMonSite',NULL,NULL,NULL,950560434,-881563214,NULL,3,0,3,'1','Pub/LeNomDeMonSite/domus_hibere.scs',NULL,'Marq','CC1');
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select * from t1 where name='patnom' and author='patauteur' and category=0;
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name author category email password proxy bitmap msg urlscol urlhttp timeout nbcnx creation livinguntil lang type subcat subtype reg scs capacity userISP CCident
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patnom patauteur 0 p.favre@cryo-networks.fr NULL NULL #p2sndnq6ae5g1u6t essai salut scol://195.242.78.119:patauteur.patnom NULL NULL NULL 950036174 -882087474 NULL 3 0 3 1 Pub/patnom/futur_divers.scs NULL pat CC1
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drop table t1;
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create table t1
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(
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name_id int not null auto_increment,
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name blob,
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INDEX name_idx (name(5)),
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primary key (name_id)
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);
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INSERT t1 VALUES(NULL,'/');
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INSERT t1 VALUES(NULL,'[T,U]_axpby');
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SELECT * FROM t1 WHERE name='[T,U]_axpy';
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name_id name
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SELECT * FROM t1 WHERE name='[T,U]_axpby';
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name_id name
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2 [T,U]_axpby
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create table t2
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(
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name_id int not null auto_increment,
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name char(255) binary,
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INDEX name_idx (name(5)),
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primary key (name_id)
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);
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Warnings:
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Warning 1287 'BINARY as attribute of a type' is deprecated and will be removed in a future release. Please use a CHARACTER SET clause with _bin collation instead
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INSERT t2 select * from t1;
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SELECT * FROM t2 WHERE name='[T,U]_axpy';
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name_id name
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SELECT * FROM t2 WHERE name='[T,U]_axpby';
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name_id name
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2 [T,U]_axpby
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CREATE TABLE t3 SELECT * FROM t2 WHERE name='[T,U]_axpby';
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SELECT * FROM t2 WHERE name='[T,U]_axpby';
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name_id name
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2 [T,U]_axpby
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drop table t1,t2,t3;
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create table t1
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(
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SEQNO numeric(12 ) not null,
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MOTYPEID numeric(12 ) not null,
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MOINSTANCEID numeric(12 ) not null,
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ATTRID numeric(12 ) not null,
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VALUE varchar(120) not null,
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primary key (SEQNO, MOTYPEID, MOINSTANCEID, ATTRID, VALUE )
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);
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INSERT INTO t1 VALUES (1, 1, 1, 1, 'a');
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INSERT INTO t1 VALUES (1, 1, 1, 1, 'b');
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INSERT INTO t1 VALUES (1, 1, 1, 1, 'a');
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ERROR 23000: Duplicate entry '1-1-1-1-a' for key 'PRIMARY'
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drop table t1;
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create table t1 (a int not null unique, b int unique, c int, d int not null primary key, key(c), e int not null unique);
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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 Index_comment Visible Expression
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t1 0 PRIMARY 1 d A 0 NULL NULL BTREE YES NULL
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t1 0 a 1 a A 0 NULL NULL BTREE YES NULL
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t1 0 e 1 e A 0 NULL NULL BTREE YES NULL
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t1 0 b 1 b A 0 NULL NULL YES BTREE YES NULL
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t1 1 c 1 c A 0 NULL NULL YES BTREE YES NULL
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drop table t1;
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create table t1 (i int, a char(200), b text, unique (a), unique (b(300))) charset utf8 row_format=dynamic engine=innodb;
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Warnings:
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Warning 3719 'utf8' is currently an alias for the character set UTF8MB3, but will be an alias for UTF8MB4 in a future release. Please consider using UTF8MB4 in order to be unambiguous.
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insert ignore t1 values (1, repeat('a',210), repeat('b', 310));
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Warnings:
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Warning 1265 Data truncated for column 'a' at row 1
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insert ignore t1 values (2, repeat(0xD0B1,215), repeat(0xD0B1, 310));
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Warnings:
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Warning 1265 Data truncated for column 'a' at row 1
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select i, length(a), length(b), char_length(a), char_length(b) from t1;
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i length(a) length(b) char_length(a) char_length(b)
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1 200 310 200 310
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2 400 620 200 310
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select i from t1 where a=repeat(_utf8 'a',200);
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i
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1
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Warnings:
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Warning 3719 'utf8' is currently an alias for the character set UTF8MB3, but will be an alias for UTF8MB4 in a future release. Please consider using UTF8MB4 in order to be unambiguous.
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select i from t1 where a=repeat(_utf8 0xD0B1,200);
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i
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2
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Warnings:
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Warning 3719 'utf8' is currently an alias for the character set UTF8MB3, but will be an alias for UTF8MB4 in a future release. Please consider using UTF8MB4 in order to be unambiguous.
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select i from t1 where b=repeat(_utf8 'b',310);
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i
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1
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Warnings:
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Warning 3719 'utf8' is currently an alias for the character set UTF8MB3, but will be an alias for UTF8MB4 in a future release. Please consider using UTF8MB4 in order to be unambiguous.
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drop table t1;
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CREATE TABLE t1 (numeropost mediumint(8) unsigned NOT NULL default '0', numreponse int(10) unsigned NOT NULL auto_increment, PRIMARY KEY (numeropost,numreponse), UNIQUE KEY numreponse (numreponse));
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Warnings:
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Warning 1681 Integer display width is deprecated and will be removed in a future release.
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Warning 1681 Integer display width is deprecated and will be removed in a future release.
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INSERT INTO t1 (numeropost,numreponse) VALUES ('1','1'),('1','2'),('2','3'),('2','4');
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SELECT numeropost FROM t1 WHERE numreponse='1';
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numeropost
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1
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EXPLAIN SELECT numeropost FROM t1 WHERE numreponse='1';
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id select_type table partitions type possible_keys key key_len ref rows filtered Extra
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1 SIMPLE t1 NULL const numreponse numreponse 4 const 1 100.00 Using index
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Warnings:
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Note 1003 /* select#1 */ select '1' AS `numeropost` from `test`.`t1` where true
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FLUSH TABLES;
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SELECT numeropost FROM t1 WHERE numreponse='1';
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numeropost
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1
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drop table t1;
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create table t1 (c char(10), index (c(0)));
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ERROR HY000: Key part 'c' length cannot be 0
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create table t1 (c char(10), index (c,c));
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ERROR 42S21: Duplicate column name 'c'
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create table t1 (c1 char(10), c2 char(10), index (c1,c2,c1));
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ERROR 42S21: Duplicate column name 'c1'
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create table t1 (c1 char(10), c2 char(10), index (c1,c1,c2));
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ERROR 42S21: Duplicate column name 'c1'
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create table t1 (c1 char(10), c2 char(10), index (c2,c1,c1));
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ERROR 42S21: Duplicate column name 'c1'
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create table t1 (c1 char(10), c2 char(10));
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alter table t1 add key (c1,c1);
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ERROR 42S21: Duplicate column name 'c1'
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alter table t1 add key (c2,c1,c1);
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ERROR 42S21: Duplicate column name 'c1'
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alter table t1 add key (c1,c2,c1);
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ERROR 42S21: Duplicate column name 'c1'
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alter table t1 add key (c1,c1,c2);
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ERROR 42S21: Duplicate column name 'c1'
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drop table t1;
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create table t1 (
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i1 INT NOT NULL,
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i2 INT NOT NULL,
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UNIQUE i1idx (i1),
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UNIQUE i2idx (i2)) charset utf8mb4;
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desc t1;
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Field Type Null Key Default Extra
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i1 int(11) NO PRI NULL
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i2 int(11) NO UNI NULL
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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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`i1` int(11) NOT NULL,
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`i2` int(11) NOT NULL,
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UNIQUE KEY `i1idx` (`i1`),
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UNIQUE KEY `i2idx` (`i2`)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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drop table t1;
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create table t1 (a varchar(10), b varchar(10), key(a(10),b(10))) charset utf8mb4;
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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` varchar(10) DEFAULT NULL,
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`b` varchar(10) DEFAULT NULL,
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KEY `a` (`a`,`b`)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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alter table t1 modify b varchar(20);
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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` varchar(10) DEFAULT NULL,
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`b` varchar(20) DEFAULT NULL,
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KEY `a` (`a`,`b`)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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alter table t1 modify a varchar(20);
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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` varchar(20) DEFAULT NULL,
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`b` varchar(20) DEFAULT NULL,
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KEY `a` (`a`,`b`)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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drop table t1;
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create table t1 (a int not null primary key, b varchar(20) not null unique);
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desc t1;
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Field Type Null Key Default Extra
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a int(11) NO PRI NULL
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b varchar(20) NO UNI NULL
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drop table t1;
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create table t1 (a int not null primary key, b int not null unique);
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desc t1;
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Field Type Null Key Default Extra
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a int(11) NO PRI NULL
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b int(11) NO UNI NULL
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drop table t1;
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create table t1 (a int not null primary key, b varchar(20) not null, unique (b(10)));
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desc t1;
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Field Type Null Key Default Extra
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a int(11) NO PRI NULL
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b varchar(20) NO UNI NULL
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drop table t1;
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create table t1 (a int not null primary key, b varchar(20) not null, c varchar(20) not null, unique(b(10),c(10)));
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desc t1;
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Field Type Null Key Default Extra
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a int(11) NO PRI NULL
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b varchar(20) NO MUL NULL
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c varchar(20) NO NULL
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drop table t1;
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create table t1 (
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c1 int,
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c2 char(12),
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c3 varchar(123),
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c4 timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
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index (c1),
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index i1 (c1),
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index i2 (c2),
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index i3 (c3),
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unique i4 (c4),
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index i5 (c1, c2, c3, c4),
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primary key (c2, c3),
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index (c2, c4)) charset utf8mb4;
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Warnings:
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Warning 1831 Duplicate index 'i1' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
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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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`c1` int(11) DEFAULT NULL,
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`c2` char(12) NOT NULL,
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`c3` varchar(123) NOT NULL,
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`c4` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
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PRIMARY KEY (`c2`,`c3`),
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UNIQUE KEY `i4` (`c4`),
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KEY `c1` (`c1`),
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KEY `i1` (`c1`),
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KEY `i2` (`c2`),
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KEY `i3` (`c3`),
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KEY `i5` (`c1`,`c2`,`c3`,`c4`),
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KEY `c2` (`c2`,`c4`)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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alter table t1 drop index c1;
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alter table t1 add index (c1);
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Warnings:
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Warning 1831 Duplicate index 'c1' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
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alter table t1 add index (c1);
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Warnings:
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Warning 1831 Duplicate index 'c1_2' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
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alter table t1 drop index i3;
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alter table t1 add index i3 (c3);
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alter table t1 drop index i2, drop index i4;
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alter table t1 add index i2 (c2), add index i4 (c4);
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alter table t1 drop index i2, drop index i4, add index i6 (c2, c4);
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Warnings:
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Warning 1831 Duplicate index 'i6' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
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alter table t1 add index i2 (c2), add index i4 (c4), drop index i6;
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alter table t1 drop index i2, drop index i4, add unique i4 (c4);
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alter table t1 add index i2 (c2), drop index i4, add index i4 (c4);
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alter table t1 drop index c2, add index (c2(4),c3(7));
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alter table t1 drop index c2, add index (c2(4),c3(7));
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alter table t1 add primary key (c1, c2), drop primary key;
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alter table t1 drop primary key;
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alter table t1 add primary key (c1, c2), drop primary key;
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ERROR 42000: Can't DROP 'PRIMARY'; check that column/key exists
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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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`c1` int(11) NOT NULL,
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`c2` char(12) NOT NULL,
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`c3` varchar(123) NOT NULL,
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`c4` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
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KEY `i1` (`c1`),
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KEY `i5` (`c1`,`c2`,`c3`,`c4`),
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KEY `c1` (`c1`),
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KEY `c1_2` (`c1`),
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KEY `i3` (`c3`),
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KEY `i2` (`c2`),
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KEY `i4` (`c4`),
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KEY `c2` (`c2`(4),`c3`(7))
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
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insert into t1 values(1, 'a', 'a', NOW()), (1, 'b', 'b', NOW());
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alter table t1 drop index i3, drop index i2, drop index i1;
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alter table t1 add index i3 (c3), add index i2 (c2), add unique index i1 (c1);
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ERROR 23000: Duplicate entry '1' for key 'i1'
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drop table t1;
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CREATE TABLE t1 (
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a INTEGER auto_increment PRIMARY KEY,
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b INTEGER NOT NULL,
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c INTEGER NOT NULL,
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d CHAR(64)
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);
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CREATE TABLE t2 (
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a INTEGER auto_increment PRIMARY KEY,
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b INTEGER NOT NULL,
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c SMALLINT NOT NULL,
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d DATETIME NOT NULL,
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e SMALLINT NOT NULL,
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f INTEGER NOT NULL,
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|
g INTEGER NOT NULL,
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|
h SMALLINT NOT NULL,
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|
i INTEGER NOT NULL,
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|
j INTEGER NOT NULL,
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UNIQUE INDEX (b),
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INDEX (b, d, e, f, g, h, i, j, c),
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INDEX (c)
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);
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INSERT INTO t2 VALUES
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(NULL, 1, 254, '1000-01-01 00:00:00', 257, 0, 0, 0, 0, 0),
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(NULL, 2, 1, '2004-11-30 12:00:00', 1, 0, 0, 0, 0, 0),
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(NULL, 3, 1, '2004-11-30 12:00:00', 1, 0, 0, 2, -21600, 0),
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(NULL, 4, 1, '2004-11-30 12:00:00', 1, 0, 0, 2, -10800, 0),
|
|
(NULL, 5, 1, '2004-11-30 12:00:00', 1, 0, 0, 5, -10800, 0),
|
|
(NULL, 6, 1, '2004-11-30 12:00:00', 102, 0, 0, 0, 0, 0),
|
|
(NULL, 7, 1, '2004-11-30 12:00:00', 105, 2, 0, 0, 0, 0),
|
|
(NULL, 8, 1, '2004-11-30 12:00:00', 105, 10, 0, 0, 0, 0);
|
|
INSERT INTO t1 (b, c, d) VALUES
|
|
(3388000, -553000, NULL),
|
|
(3388000, -553000, NULL);
|
|
DROP TABLE t1, t2;
|
|
create table t1(a int not null, key aa(a),
|
|
b char(10) not null, unique key bb(b(1)),
|
|
c char(4) not null, unique key cc(c)) charset utf8mb4;
|
|
desc t1;
|
|
Field Type Null Key Default Extra
|
|
a int(11) NO MUL NULL
|
|
b char(10) NO UNI NULL
|
|
c char(4) NO PRI NULL
|
|
show create table t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`a` int(11) NOT NULL,
|
|
`b` char(10) NOT NULL,
|
|
`c` char(4) NOT NULL,
|
|
UNIQUE KEY `cc` (`c`),
|
|
UNIQUE KEY `bb` (`b`(1)),
|
|
KEY `aa` (`a`)
|
|
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
drop table t1;
|
|
create table t1(a int not null, key aa(a),
|
|
b char(10) not null, unique key bb(b(1)),
|
|
c char(4) not null) charset utf8mb4;
|
|
desc t1;
|
|
Field Type Null Key Default Extra
|
|
a int(11) NO MUL NULL
|
|
b char(10) NO UNI NULL
|
|
c char(4) NO NULL
|
|
alter table t1 add unique key cc(c);
|
|
desc t1;
|
|
Field Type Null Key Default Extra
|
|
a int(11) NO MUL NULL
|
|
b char(10) NO UNI NULL
|
|
c char(4) NO PRI NULL
|
|
show create table t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`a` int(11) NOT NULL,
|
|
`b` char(10) NOT NULL,
|
|
`c` char(4) NOT NULL,
|
|
UNIQUE KEY `cc` (`c`),
|
|
UNIQUE KEY `bb` (`b`(1)),
|
|
KEY `aa` (`a`)
|
|
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
drop table t1;
|
|
End of 5.0 tests
|
|
DROP TABLE IF EXISTS t1;
|
|
CREATE TABLE t1 (a INT PRIMARY KEY AUTO_INCREMENT);
|
|
INSERT INTO t1 VALUES (), (), ();
|
|
SELECT 1 AS c1
|
|
FROM t1
|
|
ORDER BY (
|
|
SELECT 1 AS c2
|
|
FROM t1
|
|
GROUP BY GREATEST(LAST_INSERT_ID(), t1.a)
|
|
ORDER BY GREATEST(LAST_INSERT_ID(), t1.a)
|
|
LIMIT 1);
|
|
c1
|
|
1
|
|
1
|
|
1
|
|
DROP TABLE t1;
|
|
#
|
|
# Additional coverage for handling of key algorithm in index definition.
|
|
#
|
|
#
|
|
# 1) Default case. If key algorithm was not specified explicitly and
|
|
# this is normal key (not spatial or fulltext) storage engine
|
|
# default key algorithm is used.
|
|
#
|
|
create table ti (k int, index (k)) charset utf8mb4 engine=innodb;
|
|
create table th (k int, index (k)) charset utf8mb4 engine=heap;
|
|
#
|
|
# Key algorithm is not shown in SHOW CREATE TABLE output in this case
|
|
#
|
|
show create table ti;
|
|
Table Create Table
|
|
ti CREATE TABLE `ti` (
|
|
`k` int(11) DEFAULT NULL,
|
|
KEY `k` (`k`)
|
|
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
show create table th;
|
|
Table Create Table
|
|
th CREATE TABLE `th` (
|
|
`k` int(11) DEFAULT NULL,
|
|
KEY `k` (`k`)
|
|
) ENGINE=MEMORY DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
#
|
|
# But visible in I_S.STATISTICS
|
|
#
|
|
select table_name, index_type from information_schema.statistics
|
|
where table_schema = 'test' and table_name like 't%' order by table_name;
|
|
TABLE_NAME INDEX_TYPE
|
|
th HASH
|
|
ti BTREE
|
|
#
|
|
# Same applies when keys are added by ALTER TABLE
|
|
#
|
|
alter table ti add column l int, add index (l);
|
|
alter table th add column l int, add index (l);
|
|
show create table ti;
|
|
Table Create Table
|
|
ti CREATE TABLE `ti` (
|
|
`k` int(11) DEFAULT NULL,
|
|
`l` int(11) DEFAULT NULL,
|
|
KEY `k` (`k`),
|
|
KEY `l` (`l`)
|
|
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
show create table th;
|
|
Table Create Table
|
|
th CREATE TABLE `th` (
|
|
`k` int(11) DEFAULT NULL,
|
|
`l` int(11) DEFAULT NULL,
|
|
KEY `k` (`k`),
|
|
KEY `l` (`l`)
|
|
) ENGINE=MEMORY DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
select table_name, index_type from information_schema.statistics
|
|
where table_schema = 'test' and table_name like 't%' and index_name = 'l'
|
|
order by table_name;
|
|
TABLE_NAME INDEX_TYPE
|
|
th HASH
|
|
ti BTREE
|
|
drop tables ti, th;
|
|
#
|
|
# 2) For SPATIAL and FULLTEXT keys we always use special key
|
|
# algorithms and there is no way to specify it explicitly.
|
|
#
|
|
create table ti (pk int primary key, p point not null SRID 0, spatial index (p))
|
|
charset utf8mb4 engine=innodb;
|
|
create table th (pk int primary key, p point not null, spatial index (p))
|
|
charset utf8mb4 engine=heap;
|
|
ERROR 42000: The storage engine for the table doesn't support GEOMETRY
|
|
#
|
|
# Key algorithm is not shown in SHOW CREATE TABLE output in this
|
|
# case as well.
|
|
#
|
|
show create table ti;
|
|
Table Create Table
|
|
ti CREATE TABLE `ti` (
|
|
`pk` int(11) NOT NULL,
|
|
`p` point NOT NULL /*!80003 SRID 0 */,
|
|
PRIMARY KEY (`pk`),
|
|
SPATIAL KEY `p` (`p`)
|
|
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
#
|
|
# But visible in I_S.STATISTICS
|
|
#
|
|
select table_name, index_type from information_schema.statistics
|
|
where table_schema = 'test' and table_name like 't%' and index_name = 'p'
|
|
order by table_name;
|
|
TABLE_NAME INDEX_TYPE
|
|
ti SPATIAL
|
|
#
|
|
# Same applies when keys are added by ALTER TABLE
|
|
#
|
|
alter table ti add column q point not null SRID 0, add spatial index (q);
|
|
show create table ti;
|
|
Table Create Table
|
|
ti CREATE TABLE `ti` (
|
|
`pk` int(11) NOT NULL,
|
|
`p` point NOT NULL /*!80003 SRID 0 */,
|
|
`q` point NOT NULL /*!80003 SRID 0 */,
|
|
PRIMARY KEY (`pk`),
|
|
SPATIAL KEY `p` (`p`),
|
|
SPATIAL KEY `q` (`q`)
|
|
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
select table_name, index_type from information_schema.statistics
|
|
where table_schema = 'test' and table_name like 't%' and index_name = 'q'
|
|
order by table_name;
|
|
TABLE_NAME INDEX_TYPE
|
|
ti SPATIAL
|
|
drop tables ti;
|
|
#
|
|
# Same applies to FULLTEXT indexes.
|
|
#
|
|
create table ti (pk int primary key, v varchar(255), fulltext index (v))
|
|
charset utf8mb4 engine=innodb;
|
|
create table th (pk int primary key, v varchar(255), fulltext index (v))
|
|
charset utf8mb4 engine=heap;
|
|
ERROR HY000: The used table type doesn't support FULLTEXT indexes
|
|
show create table ti;
|
|
Table Create Table
|
|
ti CREATE TABLE `ti` (
|
|
`pk` int(11) NOT NULL,
|
|
`v` varchar(255) DEFAULT NULL,
|
|
PRIMARY KEY (`pk`),
|
|
FULLTEXT KEY `v` (`v`)
|
|
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
select table_name, index_type from information_schema.statistics
|
|
where table_schema = 'test' and table_name like 't%' and index_name = 'v'
|
|
order by table_name;
|
|
TABLE_NAME INDEX_TYPE
|
|
ti FULLTEXT
|
|
#
|
|
# Same applies when keys are added by ALTER TABLE
|
|
#
|
|
alter table ti add column w varchar(255), add fulltext index (w);
|
|
show create table ti;
|
|
Table Create Table
|
|
ti CREATE TABLE `ti` (
|
|
`pk` int(11) NOT NULL,
|
|
`v` varchar(255) DEFAULT NULL,
|
|
`w` varchar(255) DEFAULT NULL,
|
|
PRIMARY KEY (`pk`),
|
|
FULLTEXT KEY `v` (`v`),
|
|
FULLTEXT KEY `w` (`w`)
|
|
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
select table_name, index_type from information_schema.statistics
|
|
where table_schema = 'test' and table_name like 't%' and index_name = 'w'
|
|
order by table_name;
|
|
TABLE_NAME INDEX_TYPE
|
|
ti FULLTEXT
|
|
drop tables ti;
|
|
#
|
|
# 3) If key algorithm was specified explicitly and it is supported
|
|
# by the storage engine it will be used.
|
|
#
|
|
create table ti (k int, index using btree (k)) charset utf8mb4 engine=innodb;
|
|
create table th (k int, index using btree (k)) charset utf8mb4 engine=heap;
|
|
#
|
|
# In this case it is shown in SHOW CREATE TABLE output
|
|
#
|
|
show create table ti;
|
|
Table Create Table
|
|
ti CREATE TABLE `ti` (
|
|
`k` int(11) DEFAULT NULL,
|
|
KEY `k` (`k`) USING BTREE
|
|
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
show create table th;
|
|
Table Create Table
|
|
th CREATE TABLE `th` (
|
|
`k` int(11) DEFAULT NULL,
|
|
KEY `k` (`k`) USING BTREE
|
|
) ENGINE=MEMORY DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
#
|
|
# Also visible in I_S.STATISTICS
|
|
#
|
|
select table_name, index_type from information_schema.statistics
|
|
where table_schema = 'test' and table_name like 't%' order by table_name;
|
|
TABLE_NAME INDEX_TYPE
|
|
th BTREE
|
|
ti BTREE
|
|
#
|
|
# Same applies when keys are added by ALTER TABLE
|
|
#
|
|
# Note that the information that algorithm was provided explicitly is
|
|
# preserved by ALTER TABLE.
|
|
alter table ti add column l int, add index using btree (l);
|
|
alter table th add column l int, add index using hash (l);
|
|
show create table ti;
|
|
Table Create Table
|
|
ti CREATE TABLE `ti` (
|
|
`k` int(11) DEFAULT NULL,
|
|
`l` int(11) DEFAULT NULL,
|
|
KEY `k` (`k`) USING BTREE,
|
|
KEY `l` (`l`) USING BTREE
|
|
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
show create table th;
|
|
Table Create Table
|
|
th CREATE TABLE `th` (
|
|
`k` int(11) DEFAULT NULL,
|
|
`l` int(11) DEFAULT NULL,
|
|
KEY `k` (`k`) USING BTREE,
|
|
KEY `l` (`l`) USING HASH
|
|
) ENGINE=MEMORY DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
select table_name, index_type from information_schema.statistics
|
|
where table_schema = 'test' and table_name like 't%' and index_name = 'l'
|
|
order by table_name;
|
|
TABLE_NAME INDEX_TYPE
|
|
th HASH
|
|
ti BTREE
|
|
drop tables ti, th;
|
|
#
|
|
# 4) If key algorithm was specified explicitly and but it is not
|
|
# supported by the storage engine the default algorithm for SE
|
|
# will be used instead. We will emit a note in this case. We will
|
|
# also treat such situation as if algorithm is implicit.
|
|
#
|
|
# The below statements should emit notes.
|
|
create table ti (k int, index using hash (k)) charset utf8mb4 engine=innodb;
|
|
Warnings:
|
|
Note 3502 This storage engine does not support the HASH index algorithm, storage engine default was used instead.
|
|
#
|
|
# In this case algorithm is not in SHOW CREATE TABLE output
|
|
#
|
|
show create table ti;
|
|
Table Create Table
|
|
ti CREATE TABLE `ti` (
|
|
`k` int(11) DEFAULT NULL,
|
|
KEY `k` (`k`)
|
|
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
#
|
|
# But visible in I_S.STATISTICS
|
|
#
|
|
select table_name, index_type from information_schema.statistics
|
|
where table_schema = 'test' and table_name like 't%' order by table_name;
|
|
TABLE_NAME INDEX_TYPE
|
|
ti BTREE
|
|
#
|
|
# Same applies when keys are added by ALTER TABLE
|
|
#
|
|
alter table ti add column l int, add index using hash (l);
|
|
Warnings:
|
|
Note 3502 This storage engine does not support the HASH index algorithm, storage engine default was used instead.
|
|
show create table ti;
|
|
Table Create Table
|
|
ti CREATE TABLE `ti` (
|
|
`k` int(11) DEFAULT NULL,
|
|
`l` int(11) DEFAULT NULL,
|
|
KEY `k` (`k`),
|
|
KEY `l` (`l`)
|
|
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
select table_name, index_type from information_schema.statistics
|
|
where table_schema = 'test' and table_name like 't%' and index_name = 'l'
|
|
order by table_name;
|
|
TABLE_NAME INDEX_TYPE
|
|
ti BTREE
|
|
drop tables ti;
|
|
#
|
|
# 5) Coverage for key algorithm handling in cross-engine ALTER TABLE.
|
|
#
|
|
# If algorithm was not specified explicitly cross-engine ALTER TABLE
|
|
# will silently change it to the new SE's default.
|
|
create table t1 (k int, index (k)) charset utf8mb4 engine=innodb;
|
|
show create table t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`k` int(11) DEFAULT NULL,
|
|
KEY `k` (`k`)
|
|
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
select table_name, index_type from information_schema.statistics
|
|
where table_schema = 'test' and table_name like 't%' and index_name = 'k'
|
|
order by table_name;
|
|
TABLE_NAME INDEX_TYPE
|
|
t1 BTREE
|
|
# Change table's SE.
|
|
alter table t1 engine= heap;
|
|
# Key definition stays the same in SHOW CREATE TABLE output
|
|
show create table t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`k` int(11) DEFAULT NULL,
|
|
KEY `k` (`k`)
|
|
) ENGINE=MEMORY DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
# But in I_S.STATISTICS we see that algorithm has changed.
|
|
select table_name, index_type from information_schema.statistics
|
|
where table_schema = 'test' and table_name like 't%' and index_name = 'k'
|
|
order by table_name;
|
|
TABLE_NAME INDEX_TYPE
|
|
t1 HASH
|
|
drop table t1;
|
|
#
|
|
# If algorithm was specified explicitly and is supported by the new
|
|
# SE we will keep it.
|
|
#
|
|
create table t1 (k int, index using btree (k)) charset utf8mb4 engine=innodb;
|
|
show create table t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`k` int(11) DEFAULT NULL,
|
|
KEY `k` (`k`) USING BTREE
|
|
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
select table_name, index_type from information_schema.statistics
|
|
where table_schema = 'test' and table_name like 't%' and index_name = 'k'
|
|
order by table_name;
|
|
TABLE_NAME INDEX_TYPE
|
|
t1 BTREE
|
|
# Change table's SE.
|
|
alter table t1 engine= heap;
|
|
# Key definition stays the same in SHOW CREATE TABLE output
|
|
show create table t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`k` int(11) DEFAULT NULL,
|
|
KEY `k` (`k`) USING BTREE
|
|
) ENGINE=MEMORY DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
# In I_S.STATISTICS we also see that algorithm is the same
|
|
select table_name, index_type from information_schema.statistics
|
|
where table_schema = 'test' and table_name like 't%' and index_name = 'k'
|
|
order by table_name;
|
|
TABLE_NAME INDEX_TYPE
|
|
t1 BTREE
|
|
drop table t1;
|
|
#
|
|
# If algorithm was specified explicitly but is not supported by the
|
|
# new SE, we will used new SE's default instead, emit a note, and
|
|
# treat new algorithm as implicitly specified after that.
|
|
#
|
|
create table t1 (k int, index using hash (k)) charset utf8mb4 engine=heap;
|
|
show create table t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`k` int(11) DEFAULT NULL,
|
|
KEY `k` (`k`) USING HASH
|
|
) ENGINE=MEMORY DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
select table_name, index_type from information_schema.statistics
|
|
where table_schema = 'test' and table_name like 't%' and index_name = 'k'
|
|
order by table_name;
|
|
TABLE_NAME INDEX_TYPE
|
|
t1 HASH
|
|
# Change table's SE. Note will be emitted.
|
|
alter table t1 engine= innodb;
|
|
Warnings:
|
|
Note 3502 This storage engine does not support the HASH index algorithm, storage engine default was used instead.
|
|
# New algorithm is not visible SHOW CREATE TABLE output.
|
|
show create table t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`k` int(11) DEFAULT NULL,
|
|
KEY `k` (`k`)
|
|
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci
|
|
# In I_S.STATISTICS we see that algorithm has changed.
|
|
select table_name, index_type from information_schema.statistics
|
|
where table_schema = 'test' and table_name like 't%' and index_name = 'k'
|
|
order by table_name;
|
|
TABLE_NAME INDEX_TYPE
|
|
t1 BTREE
|
|
drop table t1;
|
|
#
|
|
# 6) Key algorithms and duplicate key detection.
|
|
#
|
|
# When we detect duplicate keys in table definition we take
|
|
# key algorithm into account. But we ignore if it was explicit
|
|
# or implicit.
|
|
create table t1 (k int, index using btree (k), index using hash (k)) engine=heap;
|
|
drop table t1;
|
|
create table t1 (k int, index (k), index using hash (k)) engine=heap;
|
|
Warnings:
|
|
Warning 1831 Duplicate index 'k_2' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
|
|
drop table t1;
|
|
create table t1 (k int, index using btree (k), index (k)) engine=innodb;
|
|
Warnings:
|
|
Warning 1831 Duplicate index 'k_2' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
|
|
drop table t1;
|
|
create table t1 (k int, index using btree (k), index using hash (k)) engine=innodb;
|
|
Warnings:
|
|
Note 3502 This storage engine does not support the HASH index algorithm, storage engine default was used instead.
|
|
Warning 1831 Duplicate index 'k_2' defined on the table 'test.t1'. This is deprecated and will be disallowed in a future release.
|
|
drop table t1;
|
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#
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# Bug #27546306 MISSING VITAL ERROR INFORMATION IN ERROR MESSAGE WHEN FAILING TO CONVERT CHARSET
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#
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#
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CREATE TABLE `mytable` ( `id` INT(10) UNSIGNED NOT NULL DEFAULT '0', `somefield` VARCHAR(1000) NOT NULL DEFAULT '',
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PRIMARY KEY (`id`,`somefield`) )
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DEFAULT CHARSET=UTF8MB3;
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Warnings:
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Warning 1681 Integer display width is deprecated and will be removed in a future release.
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Warning 1287 'utf8mb3' is deprecated and will be removed in a future release. Please use utf8mb4 instead
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ALTER TABLE mytable CONVERT TO CHARACTER SET UTF8MB4;
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ERROR HY000: Could not change column 'somefield' of table 'mytable'. The resulting size of index 'PRIMARY' would exceed the max key length of 3072 bytes.
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DROP TABLE mytable;
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#
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# Bug 25647413 "ASSERTION FAILURE: HA_INNODB.CC:NNN:(TABLE->INDEXES).
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# COUNT == DD_TABLE.INDEXES()".
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#
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create table t1 (b text not null, unique key(b(8)));
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drop table t1;
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