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Re: Large IN query optimization

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On Wed, Dec 13, 2006 at 02:08:44PM -0500, Tom Lane wrote:

> Are you on 8.2?  8.1 is pretty stupid about joins to inheritance trees.

To put up a number for "stupid": For GNUmed a particular
query involving one-level inheritance went down from over
ten minutes to under one second just by running against 8.2
instead of below 8.2.

Karsten
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