On Sun, 03 Jun 2007 01:39:11 +0200, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> "Jaime Casanova" <systemguards@gmail.com> writes:
>> Tom's example seems to show that mysql inserts a commit immidiatelly
>> after a DDL but this one example shows the thing is worse than that.
>
> Actually, I think their behavior is just "DDL issues a COMMIT", so that
> after that you are out of the transaction and the INSERT commits
> immediately. Some experimentation shows that mysql doesn't issue a
> warning for rollback-outside-a-transaction, so the lack of any complaint
> at the rollback step is just standard mysql-ism.
Yes, their manual explains this and warns against it. The full list is
here :
http://www.mysql.org/doc/refman/5.1/en/implicit-commit.html