mirror of
https://github.com/MariaDB/server.git
synced 2025-01-17 20:42:30 +01:00
085c97c19e
NDB cluster is not fully supported. This will be added with
WL 1892 (NDB Handler: Add support for CREATE/DROP INDEX).
Some preparatory code for this is already present though.
A change for the "duplicate key" error message is planned
for another changeset.
include/my_base.h:
WL#1563 - Modify MySQL to support fast CREATE/DROP INDEX
Defined a mask of flags which must be the same for two indexes
if they should compare as compatible.
Added an error number for a new drop index error message.
mysql-test/r/key.result:
WL#1563 - Modify MySQL to support fast CREATE/DROP INDEX
The test result.
mysql-test/t/key.test:
WL#1563 - Modify MySQL to support fast CREATE/DROP INDEX
The test case.
sql/handler.cc:
WL#1563 - Modify MySQL to support fast CREATE/DROP INDEX
Prepared for a later change in an error message:
Replace index number by index name for "duplicate key" error.
Added handling for the new drop index error message.
sql/handler.h:
WL#1563 - Modify MySQL to support fast CREATE/DROP INDEX
Added new flags and methods.
Removed old flags and methods (from the last attempt).
sql/share/errmsg.txt:
WL#1563 - Modify MySQL to support fast CREATE/DROP INDEX
Added a new error message for drop index.
sql/sql_table.cc:
WL#1563 - Modify MySQL to support fast CREATE/DROP INDEX
Moved definitions to the top of the file.
In mysql_prepare_table() allow an index to have the name
"PRIMARY" if it has the key type "Key::PRIMARY".
Added a parenthesis for readability.
Removed old code from the last attempt.
Some changes to compare_tables():
- Input parameter "List<Key> *key_list" is replaced by
"KEY *key_info_buffer, uint key_count".
- Output parameters added: "index_drop_buffer/index_drop_count"
and "index_add_buffer/index_add_count".
- Key comparison must now find matching keys in changed
old and new key lists.
- Key comparison of a key is easier now because both old
and new keys are of type 'KEY'.
Call mysql_prepare_table() before compare_tables(). The
translated KEY structs are needed at some places now.
Inserted a code segment for checking alter_table_flags().
Removed mysql_prepare_table() from the 'partition' branches
(it is done above now).
Removed a pair of unnecessary braces.
Inserted a code segment for executing fast add/drop index.
Made close of table dependent on whether it was opened.
Prepared for NDB cluster support.
Fixed commit to be called outside of LOCK_open.
466 lines
16 KiB
Text
466 lines
16 KiB
Text
drop table if exists t1,t2,t3;
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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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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 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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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 1
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drop table t1;
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CREATE TABLE t1 (
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a tinytext NOT NULL,
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b tinyint(3) unsigned NOT NULL default '0',
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PRIMARY KEY (a(32),b)
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) ENGINE=MyISAM;
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INSERT INTO t1 VALUES ('a',1),('a',2);
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SELECT * FROM t1 WHERE a='a' AND b=2;
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a b
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a 2
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SELECT * FROM t1 WHERE a='a' AND b in (2);
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a b
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a 2
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SELECT * FROM t1 WHERE a='a' AND b in (1,2);
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a b
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a 1
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a 2
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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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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 PRIMARY 1 d A 0 NULL NULL BTREE
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t1 0 a 1 a A 0 NULL NULL BTREE
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t1 0 e 1 e A 0 NULL NULL BTREE
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t1 0 b 1 b A NULL NULL NULL YES BTREE
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t1 1 c 1 c A NULL NULL NULL YES BTREE
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drop table t1;
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CREATE TABLE t1 (c CHAR(10) NOT NULL,i INT NOT NULL AUTO_INCREMENT,
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UNIQUE (c,i));
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INSERT INTO t1 (c) VALUES (NULL),(NULL);
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Warnings:
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Warning 1048 Column 'c' cannot be null
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Warning 1048 Column 'c' cannot be null
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SELECT * FROM t1;
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c i
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1
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2
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INSERT INTO t1 (c) VALUES ('a'),('a');
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SELECT * FROM t1;
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c i
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1
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2
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a 1
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a 2
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DROP TABLE IF EXISTS t1;
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CREATE TABLE t1 (c CHAR(10) NULL, i INT NOT NULL AUTO_INCREMENT,
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UNIQUE (c,i));
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INSERT INTO t1 (c) VALUES (NULL),(NULL);
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SELECT * FROM t1;
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c i
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NULL 1
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NULL 2
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INSERT INTO t1 (c) VALUES ('a'),('a');
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SELECT * FROM t1;
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c i
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NULL 1
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NULL 2
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a 1
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a 2
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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;
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insert 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 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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select i from t1 where a=repeat(_utf8 0xD0B1,200);
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i
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2
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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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drop table t1;
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CREATE TABLE t1 (id int unsigned auto_increment, name char(50), primary key (id)) engine=myisam;
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insert into t1 (name) values ('a'), ('b'),('c'),('d'),('e'),('f'),('g');
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explain select 1 from t1 where id =2;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 const PRIMARY PRIMARY 4 const 1 Using index
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explain select 1 from t1 where id =2 or id=3;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 index PRIMARY PRIMARY 4 NULL 7 Using where; Using index
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explain select name from t1 where id =2;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 const PRIMARY PRIMARY 4 const 1
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ALTER TABLE t1 DROP PRIMARY KEY, ADD INDEX (id);
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explain select 1 from t1 where id =2;
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id select_type table type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 ref id id 4 const 1 Using index
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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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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 type possible_keys key key_len ref rows Extra
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1 SIMPLE t1 const numreponse numreponse 4 const 1 Using index
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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 varchar(30) character set utf8, t text character set utf8, unique (c(2)), unique (t(3))) engine=myisam;
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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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`c` varchar(30) character set utf8 default NULL,
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`t` text character set utf8,
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UNIQUE KEY `c` (`c`(2)),
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UNIQUE KEY `t` (`t`(3))
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) ENGINE=MyISAM DEFAULT CHARSET=latin1
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insert t1 values ('cccc', 'tttt'),
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(0xD0B1212223D0B1D0B1D0B1D0B1D0B1, 0xD0B1D0B1212223D0B1D0B1D0B1D0B1),
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(0xD0B1222123D0B1D0B1D0B1D0B1D0B1, 0xD0B1D0B1222123D0B1D0B1D0B1D0B1);
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insert t1 (c) values ('cc22');
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ERROR 23000: Duplicate entry 'cc22' for key 1
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insert t1 (t) values ('ttt22');
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ERROR 23000: Duplicate entry 'ttt22' for key 2
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insert t1 (c) values (0xD0B1212322D0B1D0B1D0B1D0B1D0B1);
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ERROR 23000: Duplicate entry 'б!#"<22>' for key 1
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insert t1 (t) values (0xD0B1D0B1212322D0B1D0B1D0B1D0B1);
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ERROR 23000: Duplicate entry 'бб!#"б' for key 2
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select c from t1 where c='cccc';
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c
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cccc
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select t from t1 where t='tttt';
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t
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tttt
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select c from t1 where c=0xD0B1212223D0B1D0B1D0B1D0B1D0B1;
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c
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?!"#?????
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select t from t1 where t=0xD0B1D0B1212223D0B1D0B1D0B1D0B1;
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t
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??!"#????
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drop table t1;
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DROP TABLE IF EXISTS t1;
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Warnings:
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Note 1051 Unknown table 't1'
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CREATE TABLE t1 (
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c1 int,
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c2 varbinary(240),
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UNIQUE KEY (c1),
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KEY (c2)
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) ENGINE=MyISAM;
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INSERT INTO t1 VALUES (1,'\Z\Z\Z\Z');
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INSERT INTO t1 VALUES (2,'\Z\Z\Z\Z\Z\Z');
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INSERT INTO t1 VALUES (3,'\Z\Z\Z\Z');
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select c1 from t1 where c2='\Z\Z\Z\Z';
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c1
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1
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3
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DELETE FROM t1 WHERE (c1 = 1);
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check table t1;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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select c1 from t1 where c2='\Z\Z\Z\Z';
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c1
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3
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DELETE FROM t1 WHERE (c1 = 3);
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check table t1;
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Table Op Msg_type Msg_text
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test.t1 check status OK
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select c1 from t1 where c2='\Z\Z\Z\Z';
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c1
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truncate table t1;
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insert into t1 values(1,"aaaa"),(2,"aaab"),(3,"aaac"),(4,"aaccc");
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delete from t1 where c1=3;
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delete from t1 where c1=1;
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delete from t1 where c1=4;
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check table 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 (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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c1 int,
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c2 varchar(20) not null,
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primary key (c1),
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key (c2(10))
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) engine=myisam;
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insert into t1 values (1,'');
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insert into t1 values (2,' \t\tTest String');
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insert into t1 values (3,' \n\tTest String');
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update t1 set c2 = 'New Test String' where c1 = 1;
|
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select * from t1;
|
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c1 c2
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1 New Test String
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2 Test String
|
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3
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Test String
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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)));
|
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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=MyISAM DEFAULT CHARSET=latin1
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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,
|
||
KEY `a` (`a`,`b`)
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
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alter table t1 modify a varchar(20);
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show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
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||
`a` varchar(20) default NULL,
|
||
`b` varchar(20) default NULL,
|
||
KEY `a` (`a`,`b`)
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
drop table t1;
|
||
create table t1 (a int not null primary key, b varchar(20) not null unique);
|
||
desc t1;
|
||
Field Type Null Key Default Extra
|
||
a int(11) NO PRI
|
||
b varchar(20) NO UNI
|
||
drop table t1;
|
||
create table t1 (a int not null primary key, b int not null unique);
|
||
desc t1;
|
||
Field Type Null Key Default Extra
|
||
a int(11) NO PRI
|
||
b int(11) NO UNI
|
||
drop table t1;
|
||
create table t1 (a int not null primary key, b varchar(20) not null, unique (b(10)));
|
||
desc t1;
|
||
Field Type Null Key Default Extra
|
||
a int(11) NO PRI
|
||
b varchar(20) NO UNI
|
||
drop table t1;
|
||
create table t1 (a int not null primary key, b varchar(20) not null, c varchar(20) not null, unique(b(10),c(10)));
|
||
desc t1;
|
||
Field Type Null Key Default Extra
|
||
a int(11) NO PRI
|
||
b varchar(20) NO MUL
|
||
c varchar(20) NO
|
||
drop table t1;
|
||
create table t1 (
|
||
c1 int,
|
||
c2 char(12),
|
||
c3 varchar(123),
|
||
c4 timestamp,
|
||
index (c1),
|
||
index i1 (c1),
|
||
index i2 (c2),
|
||
index i3 (c3),
|
||
unique i4 (c4),
|
||
index i5 (c1, c2, c3, c4),
|
||
primary key (c2, c3),
|
||
index (c2, c4));
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`c1` int(11) default NULL,
|
||
`c2` char(12) NOT NULL default '',
|
||
`c3` varchar(123) NOT NULL default '',
|
||
`c4` timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP,
|
||
PRIMARY KEY (`c2`,`c3`),
|
||
UNIQUE KEY `i4` (`c4`),
|
||
KEY `c1` (`c1`),
|
||
KEY `i1` (`c1`),
|
||
KEY `i2` (`c2`),
|
||
KEY `i3` (`c3`),
|
||
KEY `i5` (`c1`,`c2`,`c3`,`c4`),
|
||
KEY `c2` (`c2`,`c4`)
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
alter table t1 drop index c1;
|
||
alter table t1 add index (c1);
|
||
alter table t1 add index (c1);
|
||
alter table t1 drop index i3;
|
||
alter table t1 add index i3 (c3);
|
||
alter table t1 drop index i2, drop index i4;
|
||
alter table t1 add index i2 (c2), add index i4 (c4);
|
||
alter table t1 drop index i2, drop index i4, add index i6 (c2, c4);
|
||
alter table t1 add index i2 (c2), add index i4 (c4), drop index i6;
|
||
alter table t1 drop index i2, drop index i4, add unique i4 (c4);
|
||
alter table t1 add index i2 (c2), drop index i4, add index i4 (c4);
|
||
alter table t1 drop index c2, add index (c2(4),c3(7));
|
||
alter table t1 drop index c2, add index (c2(4),c3(7));
|
||
alter table t1 add primary key (c1, c2), drop primary key;
|
||
alter table t1 drop primary key;
|
||
alter table t1 add primary key (c1, c2), drop primary key;
|
||
ERROR 42000: Can't DROP 'PRIMARY'; check that column/key exists
|
||
show create table t1;
|
||
Table Create Table
|
||
t1 CREATE TABLE `t1` (
|
||
`c1` int(11) NOT NULL default '0',
|
||
`c2` char(12) NOT NULL default '',
|
||
`c3` varchar(123) NOT NULL default '',
|
||
`c4` timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP,
|
||
KEY `i1` (`c1`),
|
||
KEY `i5` (`c1`,`c2`,`c3`,`c4`),
|
||
KEY `c1` (`c1`),
|
||
KEY `c1_2` (`c1`),
|
||
KEY `i3` (`c3`),
|
||
KEY `i2` (`c2`),
|
||
KEY `i4` (`c4`),
|
||
KEY `c2` (`c2`(4),`c3`(7))
|
||
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
||
insert into t1 values(1, 'a', 'a', NULL);
|
||
insert into t1 values(1, 'b', 'b', NULL);
|
||
alter table t1 drop index i3, drop index i2, drop index i1;
|
||
alter table t1 add index i3 (c3), add index i2 (c2), add unique index i1 (c1);
|
||
ERROR 23000: Duplicate entry '1' for key 1
|
||
drop table t1;
|