Create comments for views in mysql

Question

I see that the views have a comment field just like the regular tables, but is by default populated with the "VIEW" value.

[TABLE_CATALOG] => 
[TABLE_SCHEMA] => xxx
[TABLE_NAME] => view__xxxx
[TABLE_TYPE] => VIEW
[ENGINE] => 
[VERSION] => 
[ROW_FORMAT] => 
[TABLE_ROWS] => 
[AVG_ROW_LENGTH] => 
[DATA_LENGTH] => 
[MAX_DATA_LENGTH] => 
[INDEX_LENGTH] => 
[DATA_FREE] => 
[AUTO_INCREMENT] => 
[CREATE_TIME] => 
[UPDATE_TIME] => 
[CHECK_TIME] => 
[TABLE_COLLATION] => 
[CHECKSUM] => 
[CREATE_OPTIONS] => 
[TABLE_COMMENT] => VIEW

When I am trying to create a view with a comment I get an error.

CREATE OR REPLACE VIEW view__x AS
SELECT 
 * 
FROM `some_table`  
COMMENT = 'some comment'

Is there a way to modify the comment field or that field is used internally for something else and should stay like it is?

I've added a feature request to mysql.

Answer 1

According to the create view syntax there is no way currently to add comment a view:

• http://dev.mysql.com/doc/refman/5.7/en/create-view.html

This feature has been requested several times. There are four active tickets related to this functionality:

• http://bugs.mysql.com/bug.php?id=5159
• http://bugs.mysql.com/bug.php?id=64045
• http://bugs.mysql.com/bug.php?id=52429
• http://bugs.mysql.com/bug.php?id=15344

...and several marked as duplicates: http://bugs.mysql.com/bug.php?id=19602 , http://bugs.mysql.com/bug.php?id=19602 , http://bugs.mysql.com/bug.php?id=13109 , http://bugs.mysql.com/bug.php?id=14369 , http://bugs.mysql.com/bug.php?id=11082 , http://bugs.mysql.com/bug.php?id=42870 , http://bugs.mysql.com/bug.php?id=38137 , http://bugs.mysql.com/bug.php?id=38137 , http://bugs.mysql.com/bug.php?id=30729

If you are interested in this issue, go to the four active tickets, click the "affects me" button, and also add a comment, asking if anyone is working on this feature.

This will add visibility, and increase the likelyhood of it being implemented.