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MDEV-8577: With enforce-storage-engine mysql_upgrade corrupts the schema:

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ALTER TABLE should either bypass enforce-storage-engine, or mysql_upgrade
should refuse to run

Allow user to alter contents of existing table without enforcing
storage engine. However, enforce storage engine on ALTER TABLE
x ENGINE=y;
This commit is contained in:
Jan Lindström
2015-09-12 13:16:05 +03:00
parent 1e9ab68e4a
commit 9b577edd50
5 changed files with 144 additions and 2 deletions
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30
mysql-test/r/enforce_storage_engine.result
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@@ -122,3 +122,33 @@ DROP TABLE t1;
set global sql_mode=default;
SET SESSION enforce_storage_engine=NULL;
SET GLOBAL enforce_storage_engine=NULL;
CREATE TABLE t3 (c1 INT PRIMARY KEY AUTO_INCREMENT, c2 VARCHAR(10)) ENGINE=MyISAM;
INSERT INTO t3 values (NULL, 'test');
SET SESSION enforce_storage_engine=Memory;
ALTER TABLE t3 ENGINE=MyISAM;
Warnings:
Note 1266 Using storage engine MEMORY for table 't3'
SHOW CREATE TABLE t3;
Table Create Table
t3 CREATE TABLE `t3` (
`c1` int(11) NOT NULL AUTO_INCREMENT,
`c2` varchar(10) DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=MEMORY AUTO_INCREMENT=2 DEFAULT CHARSET=latin1
DROP TABLE t3;
SET SESSION enforce_storage_engine=NULL;
CREATE TABLE t3 (c1 INT PRIMARY KEY AUTO_INCREMENT, c2 VARCHAR(10)) ENGINE=MyISAM;
INSERT INTO t3 values (NULL, 'test');
SET SESSION enforce_storage_engine=Memory;
ALTER TABLE t3 ADD COLUMN c3 INT;
SHOW CREATE TABLE t3;
Table Create Table
t3 CREATE TABLE `t3` (
`c1` int(11) NOT NULL AUTO_INCREMENT,
`c2` varchar(10) DEFAULT NULL,
`c3` int(11) DEFAULT NULL,
PRIMARY KEY (`c1`)
) ENGINE=MyISAM AUTO_INCREMENT=2 DEFAULT CHARSET=latin1
DROP TABLE t3;
SET SESSION enforce_storage_engine=NULL;
SET GLOBAL enforce_storage_engine=NULL;