[dev] Datatree_sql::getByAttributes question
Michael Rubinsky
mike at theupstairsroom.com
Fri Jun 22 15:36:12 UTC 2007
Quoting Chuck Hagenbuch <chuck at horde.org>:
> Quoting Michael Rubinsky <mike at theupstairsroom.com>:
>
>> I believe I've tracked the problem down to
>> Datatree_sql::getByAttributes(). It looks like it performs a
>> separate query for each of the [OR] conditions, then puts all the
>> results into the $rows array that is returned. The problem is, if
>> we are setting a LIMIT, then we could be getting back more than the
>> $count since *each* query can return up to $count rows.
>>
>> Am I on the right track here?
>
> Yup. That was done theoretically for performance. Looks like we either
> need to do it in one shot if there's a limit, or modify the
> start/limit parameters (actually just start, right?) based on the # we
> get back from each consecutive OR.
Yea, probably better performance to keep the consecutive queries and,
like you say, modify the start, and keep track of the returned row
count so we can break out once LIMIT is reached.
Cool. It took me forever to figure that one out! Now I know I'm not
nuts...well.... ;)
Thanks,
mike
--
The Horde Project (www.horde.org)
mrubinsk at horde.org
"Time just hates me. That's why it made me an adult." - Josh Joplin
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