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MDEV-16849 Extending indexed VARCHAR column should be instantaneous
Analysis:
========
Increasing the length of the indexed varchar column is not an instant operation for
innodb.
Fix:
===
- Introduce the new handler flag 'Alter_inplace_info::ALTER_COLUMN_INDEX_LENGTH' to
indicate the index length differs due to change of column length changes.
- InnoDB makes the ALTER_COLUMN_INDEX_LENGTH flag as instant operation.
This is a port of Mysql fix.
commit 913071c0b16cc03e703308250d795bc381627e37
Author: Nisha Gopalakrishnan <nisha.gopalakrishnan@oracle.com>
Date: Wed May 30 14:54:46 2018 +0530
BUG#26848813: INDEXED COLUMN CAN'T BE CHANGED FROM VARCHAR(15)
TO VARCHAR(40) INSTANTANEOUSLY
This commit is contained in:
Thirunarayanan Balathandayuthapani
461
mysql-test/suite/innodb/r/alter_varchar_change.result
Normal file
461
mysql-test/suite/innodb/r/alter_varchar_change.result
Normal file
@ -0,0 +1,461 @@
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CREATE PROCEDURE get_index_id(IN tbl_id INT, IN idx_name char(100), OUT idx_id INT)
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BEGIN
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SELECT index_id into idx_id FROM INFORMATION_SCHEMA.INNODB_SYS_INDEXES WHERE
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NAME=idx_name and TABLE_ID=tbl_id;
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END|
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CREATE PROCEDURE get_table_id(IN tbl_name char(100), OUT tbl_id INT)
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BEGIN
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SELECT table_id into tbl_id FROM INFORMATION_SCHEMA.INNODB_SYS_TABLES WHERE
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NAME = tbl_name;
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END|
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SET @tbl_id = 0;
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SET @tbl1_id = 0;
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SET @idx_id = 0;
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SET @idx1_id = 0;
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CREATE TABLE t1(f1 INT NOT NULL,
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f2 VARCHAR(100) PRIMARY KEY)ENGINE=InnoDB;
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CALL get_table_id("test/t1", @tbl_id);
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ALTER TABLE t1 MODIFY f2 VARCHAR(200);
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CALL get_table_id("test/t1", @tbl1_id);
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SELECT @tbl1_id = @tbl_id;
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@tbl1_id = @tbl_id
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1
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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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`f1` int(11) NOT NULL,
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`f2` varchar(200) NOT NULL,
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PRIMARY KEY (`f2`)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1
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DROP TABLE t1;
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CREATE TABLE t1(f1 INT NOT NULL,
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f2 VARCHAR(100),
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INDEX idx(f2))ENGINE=InnoDB;
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CALL get_table_id("test/t1", @tbl_id);
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ALTER TABLE t1 MODIFY f2 VARCHAR(200);
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CALL get_table_id("test/t1", @tbl1_id);
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SELECT @tbl1_id = @tbl_id;
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@tbl1_id = @tbl_id
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1
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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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`f1` int(11) NOT NULL,
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`f2` varchar(200) DEFAULT NULL,
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KEY `idx` (`f2`)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1
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DROP TABLE t1;
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CREATE TABLE t1(f1 INT NOT NULL, f2 VARCHAR(100), f3 VARCHAR(100),
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INDEX idx(f2, f3), index idx1(f3, f2))ENGINE=InnoDB;
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CALL get_table_id("test/t1", @tbl_id);
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CALL get_index_id(@tbl_id, "idx", @idx_id);
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ALTER TABLE t1 MODIFY f2 VARCHAR(200), MODIFY f3 VARCHAR(150);
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CALL get_table_id("test/t1", @tbl1_id);
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CALL get_index_id(@tbl1_id, "idx", @idx1_id);
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SELECT @tbl1_id = @tbl_id;
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@tbl1_id = @tbl_id
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1
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SELECT @idx1_id = @idx_id;
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@idx1_id = @idx_id
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1
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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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`f1` int(11) NOT NULL,
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`f2` varchar(200) DEFAULT NULL,
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`f3` varchar(150) DEFAULT NULL,
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KEY `idx` (`f2`,`f3`),
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KEY `idx1` (`f3`,`f2`)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1
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DROP TABLE t1;
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CREATE TABLE t1(f1 INT NOT NULL, f2 VARCHAR(100),
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INDEX idx(f2(40)))ENGINE=InnoDB;
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CALL get_table_id("test/t1", @tbl_id);
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CALL get_index_id(@tbl_id, "idx", @idx_id);
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ALTER TABLE t1 MODIFY f2 VARCHAR(200);
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CALL get_table_id("test/t1", @tbl1_id);
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CALL get_index_id(@tbl1_id, "idx", @idx1_id);
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SELECT @tbl1_id = @tbl_id;
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@tbl1_id = @tbl_id
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1
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SELECT @idx1_id = @idx_id;
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@idx1_id = @idx_id
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1
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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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`f1` int(11) NOT NULL,
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`f2` varchar(200) DEFAULT NULL,
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KEY `idx` (`f2`(40))
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) ENGINE=InnoDB DEFAULT CHARSET=latin1
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DROP TABLE t1;
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CREATE TABLE t1(f1 INT NOT NULL,
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f2 VARCHAR(100), FULLTEXT idx(f2))ENGINE=InnoDB;
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CALL get_table_id("test/t1", @tbl_id);
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CALL get_index_id(@tbl_id, "idx", @idx_id);
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ALTER TABLE t1 MODIFY f2 VARCHAR(200);
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CALL get_table_id("test/t1", @tbl1_id);
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CALL get_index_id(@tbl1_id, "idx", @idx1_id);
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SELECT @tbl1_id = @tbl_id;
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@tbl1_id = @tbl_id
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1
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SELECT @idx1_id = @idx_id;
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@idx1_id = @idx_id
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1
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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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`f1` int(11) NOT NULL,
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`f2` varchar(200) DEFAULT NULL,
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FULLTEXT KEY `idx` (`f2`)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1
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DROP TABLE t1;
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CREATE TABLE t1(f1 INT NOT NULL,
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f2 VARCHAR(100),
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f3 VARCHAR(50) as (f2) VIRTUAL,
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INDEX idx(f3))ENGINE=InnoDB;
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INSERT INTO t1(f1, f2) VALUES(1, repeat('a', 40));
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CALL get_table_id("test/t1", @tbl_id);
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CALL get_index_id(@tbl_id, "idx", @idx_id);
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ALTER TABLE t1 MODIFY f2 VARCHAR(100);
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CALL get_table_id("test/t1", @tbl1_id);
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CALL get_index_id(@tbl1_id, "idx", @idx1_id);
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SELECT @tbl1_id = @tbl_id;
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@tbl1_id = @tbl_id
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1
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SELECT @idx1_id = @idx_id;
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@idx1_id = @idx_id
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1
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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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`f1` int(11) NOT NULL,
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`f2` varchar(100) DEFAULT NULL,
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`f3` varchar(50) GENERATED ALWAYS AS (`f2`) VIRTUAL,
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KEY `idx` (`f3`)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1
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DROP TABLE t1;
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CREATE TABLE t1(f1 INT NOT NULL,
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f2 VARCHAR(100),
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INDEX idx(f2(10)),
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INDEX idx1(f1))ENGINE=InnoDB;
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CALL get_table_id("test/t1", @tbl_id);
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CALL get_index_id(@tbl_id, "idx", @idx_id);
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ALTER TABLE t1 MODIFY f2 VARCHAR(200), DROP INDEX idx1;
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CALL get_table_id("test/t1", @tbl1_id);
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CALL get_index_id(@tbl1_id, "idx", @idx1_id);
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SELECT @tbl1_id = @tbl_id;
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@tbl1_id = @tbl_id
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1
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SELECT @idx1_id = @idx_id;
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@idx1_id = @idx_id
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1
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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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`f1` int(11) NOT NULL,
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`f2` varchar(200) DEFAULT NULL,
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KEY `idx` (`f2`(10))
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) ENGINE=InnoDB DEFAULT CHARSET=latin1
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DROP TABLE t1;
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CREATE TABLE t1(f1 INT NOT NULL,
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f2 VARCHAR(100),
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INDEX idx(f2(10)))ENGINE=InnoDB;
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CALL get_table_id("test/t1", @tbl_id);
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CALL get_index_id(@tbl_id, "idx", @idx_id);
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ALTER TABLE t1 MODIFY f2 VARCHAR(200), DROP INDEX idx, ADD INDEX idx(f2(10));
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CALL get_table_id("test/t1", @tbl1_id);
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CALL get_index_id(@tbl1_id, "idx", @idx1_id);
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SELECT @tbl1_id = @tbl_id;
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@tbl1_id = @tbl_id
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1
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SELECT @idx1_id = @idx_id;
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@idx1_id = @idx_id
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1
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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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`f1` int(11) NOT NULL,
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`f2` varchar(200) DEFAULT NULL,
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KEY `idx` (`f2`(10))
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) ENGINE=InnoDB DEFAULT CHARSET=latin1
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DROP TABLE t1;
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CREATE TABLE t1(f1 INT NOT NULL,
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f2 VARCHAR(100),
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INDEX idx(f2(10)))ENGINE=InnoDB;
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CALL get_table_id("test/t1", @tbl_id);
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CALL get_index_id(@tbl_id, "idx", @idx_id);
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ALTER TABLE t1 MODIFY f2 VARCHAR(200), DROP INDEX idx, ADD INDEX idx(f2(50));
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CALL get_table_id("test/t1", @tbl1_id);
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CALL get_index_id(@tbl1_id, "idx", @idx1_id);
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SELECT @tbl1_id = @tbl_id;
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@tbl1_id = @tbl_id
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1
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SELECT @idx1_id = @idx_id;
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@idx1_id = @idx_id
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0
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`f1` int(11) NOT NULL,
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`f2` varchar(200) DEFAULT NULL,
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KEY `idx` (`f2`(50))
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) ENGINE=InnoDB DEFAULT CHARSET=latin1
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DROP TABLE t1;
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CREATE TABLE t1(f1 INT NOT NULL,
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f2 VARCHAR(100),
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INDEX idx(f2(100)))ENGINE=InnoDB;
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CALL get_table_id("test/t1", @tbl_id);
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CALL get_index_id(@tbl_id, "idx", @idx_id);
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ALTER TABLE t1 MODIFY f2 VARCHAR(200), ADD INDEX idx1(f1);
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CALL get_table_id("test/t1", @tbl1_id);
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CALL get_index_id(@tbl1_id, "idx", @idx1_id);
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SELECT @tbl1_id = @tbl_id;
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@tbl1_id = @tbl_id
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1
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SELECT @idx1_id = @idx_id;
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@idx1_id = @idx_id
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1
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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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`f1` int(11) NOT NULL,
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`f2` varchar(200) DEFAULT NULL,
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KEY `idx` (`f2`),
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KEY `idx1` (`f1`)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1
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DROP TABLE t1;
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CREATE TABLE t1(f1 INT NOT NULL,
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f2 VARCHAR(100),
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INDEX idx(f2(10)))ENGINE=InnoDB;
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CALL get_table_id("test/t1", @tbl_id);
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CALL get_index_id(@tbl_id, "idx", @idx_id);
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ALTER TABLE t1 MODIFY f2 VARCHAR(200), DROP INDEX idx, ADD INDEX idx(f2(6));
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CALL get_table_id("test/t1", @tbl1_id);
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CALL get_index_id(@tbl1_id, "idx", @idx1_id);
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SELECT @tbl1_id = @tbl_id;
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@tbl1_id = @tbl_id
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1
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SELECT @idx1_id = @idx_id;
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@idx1_id = @idx_id
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0
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`f1` int(11) NOT NULL,
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`f2` varchar(200) DEFAULT NULL,
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KEY `idx` (`f2`(6))
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) ENGINE=InnoDB DEFAULT CHARSET=latin1
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DROP TABLE t1;
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CREATE TABLE t1(f1 INT NOT NULL,
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f2 VARCHAR(100),
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INDEX idx(f2))ENGINE=InnoDB;
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CALL get_table_id("test/t1", @tbl_id);
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ALTER TABLE t1 MODIFY f2 VARCHAR(200), ADD COLUMN f3 INT;
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CALL get_table_id("test/t1", @tbl1_id);
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SELECT @tbl1_id = @tbl_id;
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@tbl1_id = @tbl_id
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0
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SHOW CREATE TABLE t1;
|
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Table Create Table
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t1 CREATE TABLE `t1` (
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`f1` int(11) NOT NULL,
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`f2` varchar(200) DEFAULT NULL,
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`f3` int(11) DEFAULT NULL,
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KEY `idx` (`f2`)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1
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DROP TABLE t1;
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CREATE TABLE t1(f1 INT NOT NULL, f2 VARCHAR(100) PRIMARY KEY)ENGINE=InnoDB;
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CALL get_table_id("test/t1", @tbl_id);
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ALTER TABLE t1 MODIFY f2 VARCHAR(200), ADD COLUMN f3 INT;
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CALL get_table_id("test/t1", @tbl1_id);
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SELECT @tbl1_id = @tbl_id;
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@tbl1_id = @tbl_id
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0
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SHOW CREATE TABLE t1;
|
||||
Table Create Table
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t1 CREATE TABLE `t1` (
|
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`f1` int(11) NOT NULL,
|
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`f2` varchar(200) NOT NULL,
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`f3` int(11) DEFAULT NULL,
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PRIMARY KEY (`f2`)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1
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DROP TABLE t1;
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CREATE TABLE t1(f1 INT NOT NULL, f2 VARCHAR(100))ENGINE=INNODB;
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CALL get_table_id("test/t1", @tbl_id);
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ALTER TABLE t1 MODIFY f2 VARCHAR(200), ADD FULLTEXT idx(f2);
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Warnings:
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Warning 124 InnoDB rebuilding table to add column FTS_DOC_ID
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CALL get_table_id("test/t1", @tbl1_id);
|
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SELECT @tbl1_id = @tbl_id;
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@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,
|
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f2 CHAR(100) PRIMARY KEY)ENGINE=InnoDB;
|
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CALL get_table_id("test/t1", @tbl_id);
|
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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;
|
||||
336
mysql-test/suite/innodb/t/alter_varchar_change.test
Normal file
336
mysql-test/suite/innodb/t/alter_varchar_change.test
Normal file
@ -0,0 +1,336 @@
|
||||
--source include/have_innodb.inc
|
||||
|
||||
DELIMITER |;
|
||||
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|
|
||||
|
||||
DELIMITER ;|
|
||||
|
||||
SET @tbl_id = 0;
|
||||
SET @tbl1_id = 0;
|
||||
SET @idx_id = 0;
|
||||
SET @idx1_id = 0;
|
||||
|
||||
# Table should avoid rebuild for the following varchar change.
|
||||
|
||||
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;
|
||||
SHOW CREATE TABLE t1;
|
||||
DROP TABLE t1;
|
||||
|
||||
# Index should avoid rebuild
|
||||
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;
|
||||
SHOW CREATE TABLE t1;
|
||||
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;
|
||||
SELECT @idx1_id = @idx_id;
|
||||
SHOW CREATE TABLE t1;
|
||||
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;
|
||||
SELECT @idx1_id = @idx_id;
|
||||
|
||||
SHOW CREATE TABLE t1;
|
||||
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;
|
||||
SELECT @idx1_id = @idx_id;
|
||||
SHOW CREATE TABLE t1;
|
||||
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;
|
||||
SELECT @idx1_id = @idx_id;
|
||||
SHOW CREATE TABLE t1;
|
||||
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;
|
||||
SELECT @idx1_id = @idx_id;
|
||||
SHOW CREATE TABLE t1;
|
||||
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;
|
||||
SELECT @idx1_id = @idx_id;
|
||||
SHOW CREATE TABLE t1;
|
||||
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;
|
||||
SELECT @idx1_id = @idx_id;
|
||||
SHOW CREATE TABLE t1;
|
||||
DROP TABLE t1;
|
||||
|
||||
# Newly added index should built
|
||||
|
||||
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;
|
||||
SELECT @idx1_id = @idx_id;
|
||||
SHOW CREATE TABLE t1;
|
||||
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;
|
||||
SELECT @idx1_id = @idx_id;
|
||||
SHOW CREATE TABLE t1;
|
||||
DROP TABLE t1;
|
||||
|
||||
# Table should rebuild
|
||||
|
||||
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;
|
||||
SHOW CREATE TABLE t1;
|
||||
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;
|
||||
SHOW CREATE TABLE t1;
|
||||
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);
|
||||
CALL get_table_id("test/t1", @tbl1_id);
|
||||
|
||||
SELECT @tbl1_id = @tbl_id;
|
||||
SHOW CREATE TABLE t1;
|
||||
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;
|
||||
SHOW CREATE TABLE t1;
|
||||
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;
|
||||
SHOW CREATE TABLE t1;
|
||||
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;
|
||||
SHOW CREATE TABLE t1;
|
||||
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;
|
||||
SELECT @idx1_id = @idx_id;
|
||||
SHOW CREATE TABLE t1;
|
||||
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;
|
||||
SHOW CREATE TABLE t1;
|
||||
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;
|
||||
SHOW CREATE TABLE t1;
|
||||
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;
|
||||
SHOW CREATE TABLE t1;
|
||||
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;
|
||||
SHOW CREATE TABLE t1;
|
||||
DROP TABLE t1;
|
||||
# Show error when virtual varchar column got changed
|
||||
|
||||
CREATE TABLE t1(f1 INT NOT NULL,
|
||||
f2 VARCHAR(100),
|
||||
f3 VARCHAR(50) as (f2) VIRTUAL,
|
||||
INDEX idx(f3))ENGINE=InnoDB;
|
||||
|
||||
--echo # If varchar virtual column extension is allowed in the future then
|
||||
--echo # InnoDB must rebuild the index
|
||||
|
||||
--error ER_UNSUPPORTED_ACTION_ON_GENERATED_COLUMN
|
||||
ALTER TABLE t1 MODIFY f3 VARCHAR(100);
|
||||
SHOW CREATE TABLE t1;
|
||||
DROP TABLE t1;
|
||||
|
||||
DROP PROCEDURE get_index_id;
|
||||
DROP PROCEDURE get_table_id;
|
||||
@ -2001,6 +2001,11 @@ public:
|
||||
|
||||
static const HA_ALTER_FLAGS ALTER_DROP_CHECK_CONSTRAINT= 1ULL << 40;
|
||||
|
||||
/**
|
||||
Change in index length such that it doesn't require index rebuild.
|
||||
*/
|
||||
static const HA_ALTER_FLAGS ALTER_COLUMN_INDEX_LENGTH= 1ULL << 41;
|
||||
|
||||
/**
|
||||
Create options (like MAX_ROWS) for the new version of table.
|
||||
|
||||
|
||||
@ -6303,7 +6303,7 @@ static bool fill_alter_inplace_info(THD *thd,
|
||||
bool varchar,
|
||||
Alter_inplace_info *ha_alter_info)
|
||||
{
|
||||
Field **f_ptr, *field;
|
||||
Field **f_ptr, *field, *old_field;
|
||||
List_iterator_fast<Create_field> new_field_it;
|
||||
Create_field *new_field;
|
||||
KEY_PART_INFO *key_part, *new_part;
|
||||
@ -6629,6 +6629,7 @@ static bool fill_alter_inplace_info(THD *thd,
|
||||
Go through keys and check if the original ones are compatible
|
||||
with new table.
|
||||
*/
|
||||
uint old_field_len= 0;
|
||||
KEY *table_key;
|
||||
KEY *table_key_end= table->key_info + table->s->keys;
|
||||
KEY *new_key;
|
||||
@ -6693,17 +6694,35 @@ static bool fill_alter_inplace_info(THD *thd,
|
||||
key_part < end;
|
||||
key_part++, new_part++)
|
||||
{
|
||||
/*
|
||||
Key definition has changed if we are using a different field or
|
||||
if the used key part length is different. It makes sense to
|
||||
check lengths first as in case when fields differ it is likely
|
||||
that lengths differ too and checking fields is more expensive
|
||||
in general case.
|
||||
*/
|
||||
if (key_part->length != new_part->length)
|
||||
goto index_changed;
|
||||
|
||||
new_field= get_field_by_index(alter_info, new_part->fieldnr);
|
||||
old_field= table->field[key_part->fieldnr - 1];
|
||||
/*
|
||||
If there is a change in index length due to column expansion
|
||||
like varchar(X) changed to varchar(X + N) and has a compatible
|
||||
packed data representation, we mark it for fast/INPLACE change
|
||||
in index definition. InnoDB supports INPLACE for this cases
|
||||
|
||||
Key definition has changed if we are using a different field or
|
||||
if the user key part length is different.
|
||||
*/
|
||||
old_field_len= old_field->pack_length();
|
||||
|
||||
if (old_field->type() == MYSQL_TYPE_VARCHAR)
|
||||
{
|
||||
old_field_len= (old_field->pack_length()
|
||||
- ((Field_varstring*) old_field)->length_bytes);
|
||||
}
|
||||
|
||||
if (key_part->length == old_field_len &&
|
||||
key_part->length < new_part->length &&
|
||||
(key_part->field->is_equal((Create_field*) new_field)
|
||||
== IS_EQUAL_PACK_LENGTH))
|
||||
{
|
||||
ha_alter_info->handler_flags |=
|
||||
Alter_inplace_info::ALTER_COLUMN_INDEX_LENGTH;
|
||||
}
|
||||
else if (key_part->length != new_part->length)
|
||||
goto index_changed;
|
||||
|
||||
/*
|
||||
For prefix keys KEY_PART_INFO::field points to cloned Field
|
||||
|
||||
@ -90,7 +90,8 @@ static const Alter_inplace_info::HA_ALTER_FLAGS INNOBASE_INPLACE_IGNORE
|
||||
| Alter_inplace_info::ALTER_COLUMN_COLUMN_FORMAT
|
||||
| Alter_inplace_info::ALTER_COLUMN_STORAGE_TYPE
|
||||
| Alter_inplace_info::ALTER_VIRTUAL_GCOL_EXPR
|
||||
| Alter_inplace_info::ALTER_RENAME;
|
||||
| Alter_inplace_info::ALTER_RENAME
|
||||
| Alter_inplace_info::ALTER_COLUMN_INDEX_LENGTH;
|
||||
|
||||
/** Operations on foreign key definitions (changing the schema only) */
|
||||
static const Alter_inplace_info::HA_ALTER_FLAGS INNOBASE_FOREIGN_OPERATIONS
|
||||
|
||||
Reference in New Issue
Block a user