[Commits] Rev 2896: Fixed LP bug #707827. in file:///home/igor/maria/maria-5.3-bug707827/

Oleksandr Byelkin sanja at askmonty.org
Fri Jan 28 07:53:55 EET 2011


Hi!

On 28.01.2011 07:23, Igor Babaev wrote:
> At file:///home/igor/maria/maria-5.3-bug707827/
>
> ------------------------------------------------------------
> revno: 2896
> revision-id: igor at askmonty.org-20110128052302-09617460yxj1kck7
> parent: igor at askmonty.org-20110127044523-9kvx1t3x3166hjyr
> committer: Igor Babaev<igor at askmonty.org>
> branch nick: maria-5.3-bug707827
> timestamp: Thu 2011-01-27 21:23:02 -0800
> message:
>    Fixed LP bug #707827.
>    This bug could manifest itself when hash join over a varchar column
>    with NULL values in some rows was used. It happened because the
>    function key_buf_cmp erroneously returned FALSE when one of the joined
>    key fields was null while the second was not.
>    Also fixed two other bugs in the functions key_hashnr and key_buf_cmp
>    that could possibly lead to wrong results for some queries that
>    used hash join over several columns with nulls.
>    Also reverted the latest addition of the test case for bug #45092. It
>    had been already backported earlier.
It looks good to be pushed. Thank you for fixing it!


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