maria-discuss team mailing list archive

[Reindl Harald <h.reindl@xxxxxxxxxxxxx>]

Hi!

thank you very much - the timeframe report/fix was really impressive

best greetings from Vienna!
Harry

Am 01.10.2013 09:09, schrieb Michael Widenius:
> Hi!
> 
>>>>>> "Reindl" == Reindl Harald <h.reindl@xxxxxxxxxxxxx> writes:
> 
> Reindl> please can someone from the MariaDB developers
> Reindl> MariaDB 5.5.32 is running here on test-machines
> 
> Reindl> this is todays feedback of the dbmail core-developer and beause
> Reindl> more and more distributions including Fedora/OpenSuSE and AFAIK
> Reindl> even RHEL7 switch to MariaDB this is a *serious* problem which is
> Reindl> not what a "drop-in replacement" should do and a show-stopper
> Reindl> rollout Fedora 19 at all in the near future
> 
>>> Anyway, MariaDB doesn't even pass the basic unit-tests
>>>
>>> Looks like this maybe libzdb related. The ordering of the query
>>> retrieving mime parts is ok on the console, but *not* when looping
>>> over the result in libzdb.
>>>
>>> MariaDB is *no-go* at this moment. Just what I experienced a year
>>> ago or so. I'm sorry, but I don't think I'll hold 3.1.4 for that
>>> not a regression at all.
> 
> I never saw a final follow up on this, so I thought I would post some
> observations.
> 
> This was a bug in that in some cases with Aria temporary tables it was
> not always guaranteed that one would read rows in the same order they
> where inserted.
> 
> This bug has been around a long time in MariaDB and in spite of having
> lots of MariaDB installations this has never been noticed or reported.
> 
> In any case, it's now fixed in MariaDB 5.5.33 and also in MariaDB 5.1,
> 5.2 and 5.3.
> 
> We are doing our best to ensure that MariaDB is a full MySQL drop in
> replacement and in most cases it is.  As far as I can remember during
> the last 4 years we have had only a handfull of serious bugs like
> this.
> 
> We have also done our best to document the differences between MySQL
> and MariaDB at:
> https://mariadb.com/kb/en/mariadb-vs-mysql-compatibility/
> 
> In general, my own experience is that it's easier to move to MariaDB
> than to a newer MySQL version.  In both cases there may be new bugs or
> new behavior.
> 
> We at MariaDB are doing our best to close everything that affects
> other open source projects and distributions very fast.
> 
> Just report the bugs in Jira or here on the email list and we are
> doing our best to quickly fix it.
> 
> In any case, sorry about the trouble with the ORDER BY bug.
> 
> Regards,
> Monty

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