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.
这篇关于在 mysql 中为视图创建注释的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持编程学习网！