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Re: ANTI-JOIN needs table, index scan not possible? - Mailing list pgsql-performance

From Kenneth Marshall
Subject Re: ANTI-JOIN needs table, index scan not possible?
Date
Msg-id 20110311221603.GI8169@aart.is.rice.edu
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In response to Re: ANTI-JOIN needs table, index scan not possible?  ("hans wulf" <lotu1@gmx.net>)
Responses Re: ANTI-JOIN needs table, index scan not possible?  ("Kevin Grittner" <Kevin.Grittner@wicourts.gov>)
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On Fri, Mar 11, 2011 at 06:54:39PM +0100, hans wulf wrote:
> Thanks for the answer.
>
> so there's no way around this problem? A nice index bitmap merge thing would be super fast. Big table ANTI JOIN
querieswith only a few results expected, are totally broken, if this is true.  
>
> This way the query breaks my neck. This is a massive downside of postgres which makes this kind of query impossible.
Mysqlgives you the answer in a few seconds :-( 
>
>

Super! I am glad that MySQL can meet your needs. No software is
perfect and you should definitely chose based on your use-case.

Regards,
Ken

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