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CREATE PROCEDURE get_index_id(IN tbl_id INT, IN idx_name char(100), OUT idx_id INT)
BEGIN
SELECT index_id into idx_id FROM INFORMATION_SCHEMA.INNODB_SYS_INDEXES WHERE
NAME=idx_name and TABLE_ID=tbl_id;
END|
CREATE PROCEDURE get_table_id(IN tbl_name char(100), OUT tbl_id INT)
BEGIN
SELECT table_id into tbl_id FROM INFORMATION_SCHEMA.INNODB_SYS_TABLES WHERE
NAME = tbl_name;
END|
SET @tbl_id = 0;
SET @tbl1_id = 0;
SET @idx_id = 0;
SET @idx1_id = 0;
CREATE TABLE t1(f1 INT NOT NULL,
f2 VARCHAR(100) PRIMARY KEY)ENGINE=InnoDB;
CALL get_table_id("test/t1", @tbl_id);
ALTER TABLE t1 MODIFY f2 VARCHAR(200);
CALL get_table_id("test/t1", @tbl1_id);
SELECT @tbl1_id = @tbl_id;
@tbl1_id = @tbl_id
1
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`f1` int(11) NOT NULL,
`f2` varchar(200) NOT NULL,
PRIMARY KEY (`f2`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE t1;
CREATE TABLE t1(f1 INT NOT NULL,
f2 VARCHAR(100),
INDEX idx(f2))ENGINE=InnoDB;
CALL get_table_id("test/t1", @tbl_id);
ALTER TABLE t1 MODIFY f2 VARCHAR(200);
CALL get_table_id("test/t1", @tbl1_id);
SELECT @tbl1_id = @tbl_id;
@tbl1_id = @tbl_id
1
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`f1` int(11) NOT NULL,
`f2` varchar(200) DEFAULT NULL,
KEY `idx` (`f2`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE t1;
CREATE TABLE t1(f1 INT NOT NULL, f2 VARCHAR(100), f3 VARCHAR(100),
INDEX idx(f2, f3), index idx1(f3, f2))ENGINE=InnoDB;
CALL get_table_id("test/t1", @tbl_id);
CALL get_index_id(@tbl_id, "idx", @idx_id);
ALTER TABLE t1 MODIFY f2 VARCHAR(200), MODIFY f3 VARCHAR(150);
CALL get_table_id("test/t1", @tbl1_id);
CALL get_index_id(@tbl1_id, "idx", @idx1_id);
SELECT @tbl1_id = @tbl_id;
@tbl1_id = @tbl_id
1
SELECT @idx1_id = @idx_id;
@idx1_id = @idx_id
1
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`f1` int(11) NOT NULL,
`f2` varchar(200) DEFAULT NULL,
`f3` varchar(150) DEFAULT NULL,
KEY `idx` (`f2`,`f3`),
KEY `idx1` (`f3`,`f2`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE t1;
CREATE TABLE t1(f1 INT NOT NULL, f2 VARCHAR(100),
INDEX idx(f2(40)))ENGINE=InnoDB;
CALL get_table_id("test/t1", @tbl_id);
CALL get_index_id(@tbl_id, "idx", @idx_id);
ALTER TABLE t1 MODIFY f2 VARCHAR(200);
CALL get_table_id("test/t1", @tbl1_id);
CALL get_index_id(@tbl1_id, "idx", @idx1_id);
SELECT @tbl1_id = @tbl_id;
@tbl1_id = @tbl_id
1
SELECT @idx1_id = @idx_id;
@idx1_id = @idx_id
1
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`f1` int(11) NOT NULL,
`f2` varchar(200) DEFAULT NULL,
KEY `idx` (`f2`(40))
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE t1;
CREATE TABLE t1(f1 INT NOT NULL,
f2 VARCHAR(100), FULLTEXT idx(f2))ENGINE=InnoDB;
CALL get_table_id("test/t1", @tbl_id);
CALL get_index_id(@tbl_id, "idx", @idx_id);
ALTER TABLE t1 MODIFY f2 VARCHAR(200);
CALL get_table_id("test/t1", @tbl1_id);
CALL get_index_id(@tbl1_id, "idx", @idx1_id);
SELECT @tbl1_id = @tbl_id;
@tbl1_id = @tbl_id
1
SELECT @idx1_id = @idx_id;
@idx1_id = @idx_id
1
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`f1` int(11) NOT NULL,
`f2` varchar(200) DEFAULT NULL,
FULLTEXT KEY `idx` (`f2`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE t1;
CREATE TABLE t1(f1 INT NOT NULL,
f2 VARCHAR(100),
f3 VARCHAR(50) as (f2) VIRTUAL,
INDEX idx(f3))ENGINE=InnoDB;
INSERT INTO t1(f1, f2) VALUES(1, repeat('a', 40));
CALL get_table_id("test/t1", @tbl_id);
CALL get_index_id(@tbl_id, "idx", @idx_id);
ALTER TABLE t1 MODIFY f2 VARCHAR(100);
CALL get_table_id("test/t1", @tbl1_id);
CALL get_index_id(@tbl1_id, "idx", @idx1_id);
SELECT @tbl1_id = @tbl_id;
@tbl1_id = @tbl_id
1
SELECT @idx1_id = @idx_id;
@idx1_id = @idx_id
1
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`f1` int(11) NOT NULL,
`f2` varchar(100) DEFAULT NULL,
`f3` varchar(50) GENERATED ALWAYS AS (`f2`) VIRTUAL,
KEY `idx` (`f3`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE t1;
CREATE TABLE t1(f1 INT NOT NULL,
f2 VARCHAR(100),
INDEX idx(f2(10)),
INDEX idx1(f1))ENGINE=InnoDB;
CALL get_table_id("test/t1", @tbl_id);
CALL get_index_id(@tbl_id, "idx", @idx_id);
ALTER TABLE t1 MODIFY f2 VARCHAR(200), DROP INDEX idx1;
CALL get_table_id("test/t1", @tbl1_id);
CALL get_index_id(@tbl1_id, "idx", @idx1_id);
SELECT @tbl1_id = @tbl_id;
@tbl1_id = @tbl_id
1
SELECT @idx1_id = @idx_id;
@idx1_id = @idx_id
1
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`f1` int(11) NOT NULL,
`f2` varchar(200) DEFAULT NULL,
KEY `idx` (`f2`(10))
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE t1;
CREATE TABLE t1(f1 INT NOT NULL,
f2 VARCHAR(100),
INDEX idx(f2(10)))ENGINE=InnoDB;
CALL get_table_id("test/t1", @tbl_id);
CALL get_index_id(@tbl_id, "idx", @idx_id);
ALTER TABLE t1 MODIFY f2 VARCHAR(200), DROP INDEX idx, ADD INDEX idx(f2(10));
CALL get_table_id("test/t1", @tbl1_id);
CALL get_index_id(@tbl1_id, "idx", @idx1_id);
SELECT @tbl1_id = @tbl_id;
@tbl1_id = @tbl_id
1
SELECT @idx1_id = @idx_id;
@idx1_id = @idx_id
1
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`f1` int(11) NOT NULL,
`f2` varchar(200) DEFAULT NULL,
KEY `idx` (`f2`(10))
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE t1;
CREATE TABLE t1(f1 INT NOT NULL,
f2 VARCHAR(100),
INDEX idx(f2(10)))ENGINE=InnoDB;
CALL get_table_id("test/t1", @tbl_id);
CALL get_index_id(@tbl_id, "idx", @idx_id);
ALTER TABLE t1 MODIFY f2 VARCHAR(200), DROP INDEX idx, ADD INDEX idx(f2(50));
CALL get_table_id("test/t1", @tbl1_id);
CALL get_index_id(@tbl1_id, "idx", @idx1_id);
SELECT @tbl1_id = @tbl_id;
@tbl1_id = @tbl_id
1
SELECT @idx1_id = @idx_id;
@idx1_id = @idx_id
0
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`f1` int(11) NOT NULL,
`f2` varchar(200) DEFAULT NULL,
KEY `idx` (`f2`(50))
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE t1;
CREATE TABLE t1(f1 INT NOT NULL,
f2 VARCHAR(100),
INDEX idx(f2(100)))ENGINE=InnoDB;
CALL get_table_id("test/t1", @tbl_id);
CALL get_index_id(@tbl_id, "idx", @idx_id);
ALTER TABLE t1 MODIFY f2 VARCHAR(200), ADD INDEX idx1(f1);
CALL get_table_id("test/t1", @tbl1_id);
CALL get_index_id(@tbl1_id, "idx", @idx1_id);
SELECT @tbl1_id = @tbl_id;
@tbl1_id = @tbl_id
1
SELECT @idx1_id = @idx_id;
@idx1_id = @idx_id
1
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`f1` int(11) NOT NULL,
`f2` varchar(200) DEFAULT NULL,
KEY `idx` (`f2`),
KEY `idx1` (`f1`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE t1;
CREATE TABLE t1(f1 INT NOT NULL,
f2 VARCHAR(100),
INDEX idx(f2(10)))ENGINE=InnoDB;
CALL get_table_id("test/t1", @tbl_id);
CALL get_index_id(@tbl_id, "idx", @idx_id);
ALTER TABLE t1 MODIFY f2 VARCHAR(200), DROP INDEX idx, ADD INDEX idx(f2(6));
CALL get_table_id("test/t1", @tbl1_id);
CALL get_index_id(@tbl1_id, "idx", @idx1_id);
SELECT @tbl1_id = @tbl_id;
@tbl1_id = @tbl_id
1
SELECT @idx1_id = @idx_id;
@idx1_id = @idx_id
0
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`f1` int(11) NOT NULL,
`f2` varchar(200) DEFAULT NULL,
KEY `idx` (`f2`(6))
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE t1;
CREATE TABLE t1(f1 INT NOT NULL,
f2 VARCHAR(100),
INDEX idx(f2))ENGINE=InnoDB;
CALL get_table_id("test/t1", @tbl_id);
ALTER TABLE t1 MODIFY f2 VARCHAR(200), ADD COLUMN f3 INT;
CALL get_table_id("test/t1", @tbl1_id);
SELECT @tbl1_id = @tbl_id;
@tbl1_id = @tbl_id
0
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`f1` int(11) NOT NULL,
`f2` varchar(200) DEFAULT NULL,
`f3` int(11) DEFAULT NULL,
KEY `idx` (`f2`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE t1;
CREATE TABLE t1(f1 INT NOT NULL, f2 VARCHAR(100) PRIMARY KEY)ENGINE=InnoDB;
CALL get_table_id("test/t1", @tbl_id);
ALTER TABLE t1 MODIFY f2 VARCHAR(200), ADD COLUMN f3 INT;
CALL get_table_id("test/t1", @tbl1_id);
SELECT @tbl1_id = @tbl_id;
@tbl1_id = @tbl_id
0
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`f1` int(11) NOT NULL,
`f2` varchar(200) NOT NULL,
`f3` int(11) DEFAULT NULL,
PRIMARY KEY (`f2`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE t1;
CREATE TABLE t1(f1 INT NOT NULL, f2 VARCHAR(100))ENGINE=INNODB;
CALL get_table_id("test/t1", @tbl_id);
ALTER TABLE t1 MODIFY f2 VARCHAR(200), ADD FULLTEXT idx(f2);
Warnings:
Warning 124 InnoDB rebuilding table to add column FTS_DOC_ID
CALL get_table_id("test/t1", @tbl1_id);
SELECT @tbl1_id = @tbl_id;
@tbl1_id = @tbl_id
0
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`f1` int(11) NOT NULL,
`f2` varchar(200) DEFAULT NULL,
FULLTEXT KEY `idx` (`f2`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE t1;
CREATE TABLE t1(f1 INT NOT NULL,
f2 CHAR(100) PRIMARY KEY)ENGINE=InnoDB;
CALL get_table_id("test/t1", @tbl_id);
ALTER TABLE t1 MODIFY f2 CHAR(200);
CALL get_table_id("test/t1", @tbl1_id);
SELECT @tbl1_id = @tbl_id;
@tbl1_id = @tbl_id
0
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`f1` int(11) NOT NULL,
`f2` char(200) NOT NULL,
PRIMARY KEY (`f2`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE t1;
CREATE TABLE t1(f1 INT NOT NULL,
f2 VARCHAR(100),
INDEX idx(f2(10)),
INDEX idx1(f1))ENGINE=InnoDB;
CALL get_table_id("test/t1", @tbl_id);
ALTER TABLE t1 MODIFY f2 VARCHAR(50);
CALL get_table_id("test/t1", @tbl1_id);
SELECT @tbl1_id = @tbl_id;
@tbl1_id = @tbl_id
0
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`f1` int(11) NOT NULL,
`f2` varchar(50) DEFAULT NULL,
KEY `idx` (`f2`(10)),
KEY `idx1` (`f1`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE t1;
CREATE TABLE t1(f1 INT NOT NULL,
f2 VARCHAR(100),
INDEX idx(f2(10)),
INDEX idx1(f1))ENGINE=InnoDB;
CALL get_table_id("test/t1", @tbl_id);
ALTER TABLE t1 MODIFY f2 VARCHAR(5), DROP INDEX idx1;
CALL get_table_id("test/t1", @tbl1_id);
SELECT @tbl1_id = @tbl_id;
@tbl1_id = @tbl_id
0
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`f1` int(11) NOT NULL,
`f2` varchar(5) DEFAULT NULL,
KEY `idx` (`f2`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE t1;
CREATE TABLE t1(f1 INT NOT NULL,
f2 VARCHAR(100), FULLTEXT idx(f2))ENGINE=InnoDB;
CALL get_table_id("test/t1", @tbl_id);
CALL get_index_id(@tbl_id, "idx", @idx_id);
ALTER TABLE t1 MODIFY f2 VARCHAR(50);
CALL get_table_id("test/t1", @tbl1_id);
CALL get_index_id(@tbl1_id, "idx", @idx1_id);
SELECT @tbl1_id = @tbl_id;
@tbl1_id = @tbl_id
0
SELECT @idx1_id = @idx_id;
@idx1_id = @idx_id
0
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`f1` int(11) NOT NULL,
`f2` varchar(50) DEFAULT NULL,
FULLTEXT KEY `idx` (`f2`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE t1;
CREATE TABLE t1(f1 INT NOT NULL,
f2 VARCHAR(100),
INDEX idx(f2))ENGINE=InnoDB;
CALL get_table_id("test/t1", @tbl_id);
ALTER TABLE t1 MODIFY f2 CHAR(200);
CALL get_table_id("test/t1", @tbl1_id);
SELECT @tbl1_id = @tbl_id;
@tbl1_id = @tbl_id
0
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`f1` int(11) NOT NULL,
`f2` char(200) DEFAULT NULL,
KEY `idx` (`f2`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE t1;
CREATE TABLE t1(f1 INT NOT NULL,
f2 VARCHAR(100),
INDEX idx(f2(40)))ENGINE=InnoDB;
CALL get_table_id("test/t1", @tbl_id);
ALTER TABLE t1 MODIFY f2 TEXT;
CALL get_table_id("test/t1", @tbl1_id);
SELECT @tbl1_id = @tbl_id;
@tbl1_id = @tbl_id
0
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`f1` int(11) NOT NULL,
`f2` text DEFAULT NULL,
KEY `idx` (`f2`(40))
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE t1;
CREATE TABLE t1(f1 INT NOT NULL,
f2 VARCHAR(100),
INDEX idx(f2(40)))ENGINE=InnoDB;
CALL get_table_id("test/t1", @tbl_id);
ALTER TABLE t1 MODIFY f2 VARCHAR(300);
CALL get_table_id("test/t1", @tbl1_id);
SELECT @tbl1_id = @tbl_id;
@tbl1_id = @tbl_id
0
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`f1` int(11) NOT NULL,
`f2` varchar(300) DEFAULT NULL,
KEY `idx` (`f2`(40))
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE t1;
CREATE TABLE t1(f1 INT NOT NULL,
f2 VARCHAR(100),
INDEX idx(f2(40)))ENGINE=InnoDB;
CALL get_table_id("test/t1", @tbl_id);
ALTER TABLE t1 MODIFY f2 VARCHAR(200) CHARACTER SET UTF16;
CALL get_table_id("test/t1", @tbl1_id);
SELECT @tbl1_id = @tbl_id;
@tbl1_id = @tbl_id
0
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`f1` int(11) NOT NULL,
`f2` varchar(200) CHARACTER SET utf16 DEFAULT NULL,
KEY `idx` (`f2`(40))
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE t1;
CREATE TABLE t1(f1 INT NOT NULL,
f2 VARCHAR(100),
f3 VARCHAR(50) as (f2) VIRTUAL,
INDEX idx(f3))ENGINE=InnoDB;
# If varchar virtual column extension is allowed in the future then
# InnoDB must rebuild the index
ALTER TABLE t1 MODIFY f3 VARCHAR(100);
ERROR HY000: This is not yet supported for generated columns
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`f1` int(11) NOT NULL,
`f2` varchar(100) DEFAULT NULL,
`f3` varchar(50) GENERATED ALWAYS AS (`f2`) VIRTUAL,
KEY `idx` (`f3`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1
DROP TABLE t1;
DROP PROCEDURE get_index_id;
DROP PROCEDURE get_table_id;
create table t (a varchar(100)) engine=innodb;
select name, pos, mtype, prtype, len from information_schema.innodb_sys_columns where name='a';
name pos mtype prtype len
a 0 1 524303 100
alter table t modify a varchar(110), algorithm=inplace;
select name, pos, mtype, prtype, len from information_schema.innodb_sys_columns where name='a';
name pos mtype prtype len
a 0 1 524303 110
drop table t;
|
