MySQL Bugs: #7472: Renaming column name not reflecting in indices/foreign keys

Bug #7472	Renaming column name not reflecting in indices/foreign keys
Submitted:	22 Dec 2004 5:28	Modified:	25 Aug 2005 11:28
Reporter:	Mark Junker	Email Updates:
Status:	Closed	Impact on me:	None
Category:	MySQL Query Browser	Severity:	S2 (Serious)
Version:	1.1.3	OS:	Microsoft Windows (WinXP Pro SP2)
Assigned to:	Vladimir Kolesnikov	CPU Architecture:	Any

Description:
Hi,

when you rename a column in the "Table Editor" window, the column name will not change in foreign keys and non-primary indices.

Regards,
Mark

How to repeat:
1. Create a table with the following statement:

CREATE TABLE `test`.`test5` (
  `test5_id` INTEGER UNSIGNED NOT NULL AUTO_INCREMENT,
  `test6` INTEGER UNSIGNED NOT NULL,
  PRIMARY KEY(`test5_id`)
)
TYPE = InnoDB;

2. Open the table editor window for this newly created table.
3. Create new index (Index_2) with 'test6' as index column.
4. Rename the column 'test6' to 'test6_x'
5. Apply the changes

The statement you get is:
ALTER TABLE `test`.`test5` CHANGE COLUMN `test6` `test6_x` INTEGER UNSIGNED NOT NULL DEFAULT 0,
 ADD INDEX `Index_2`(`test6`);

But the correct statement would be:
ALTER TABLE `test`.`test5` CHANGE COLUMN `test6` `test6_x` INTEGER UNSIGNED NOT NULL DEFAULT 0,
 ADD INDEX `Index_2`(`test6_x`);

Verified with v1.1.4

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source repository of that product and will be incorporated into the
next release.

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