MySQL 5.7.9是否删除了对ALTER IGNORE TABLE的支持？

Question

Consider the following query:

ALTER IGNORE TABLE `table_name`
ADD UNIQUE `some_id` (`some_id`);

This works fine in MySQL 5.6.25 but in 5.7.9 it gives a syntax error. Sidenote: Is it just me or was the GA of MysQL 5.7 the most quiet version upgrade ever heard of (or not, as the case may be)?

Anyways, in 5.7.9 I get the following error:

Error in query (1064): Syntax error near 'IGNORE TABLE ... etc

I'm hoping it's me mixing up the syntax in which case I'm sorry for wasting your time. In essence: I'm grateful for your help. Thanks.

Answer 1

After checking the MySQL manual :

As of MySQL 5.7.4, the IGNORE clause for ALTER TABLE is removed and its use produces an error.

In versions prior to 5.7.4 you get a warning if you use it. Something like:

1 warning(s): 1681 'IGNORE' is deprecated and will be removed in a future release.