在 mysql 中为视图创建注释

问题描述

我看到视图和常规表一样有一个注释字段，但默认情况下填充了VIEW"值.

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

当我尝试创建带有评论的视图时，出现错误.

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'

有没有办法修改评论字段，或者该字段在内部用于其他用途并且应该保持原样?

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

我已向 mysql 添加了功能请求.

I've added a feature request to mysql.

推荐答案

根据创建视图的语法，目前无法为视图添加评论:

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

此功能已被多次请求.有四张与此功能相关的有效工单:

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

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

...还有几个标记为重复: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

...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

如果您对此问题感兴趣，请前往四个活动的工单，单击影响我"按钮，并添加评论，询问是否有人正在研究此功能.

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.

这将增加可见性，并增加实施的可能性.

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

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