Why is MySQL creating tables with a _seq suffix?

I have created a InnoDB table named foo in MySQL. As soon as I perform an insert into the table, I see that another table foo_se开发者_Python百科q is created.

If I drop the auto generated table, it appears after the next insert.

What is causing this?

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That sounds like a sequence is being created, do you have any autogenerated primary keys or IDs?

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Issue this query, chances are very high it will tell you what happens before an insert:

SHOW TRIGGERS LIKE 'foo';