Horton

Re: multi-column index

Christopher Kings-Lynne <chriskl@familyhealth.com.au>

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From: Christopher Kings-Lynne <chriskl@familyhealth.com.au>
To: Manfred Koizar <mkoi-pg@aon.at>
Cc: Tom Lane <tgl@sss.pgh.pa.us>, David Brown <time@bigpond.net.au>, Josh Berkus <pgsql-performance@postgresql.org>
Date: 2005-03-17T08:55:15Z
Lists: pgsql-performance 
> May be it's time to revisit an old proposal that has failed to catch
> anybody's attention during the 7.4 beta period:
> http://archives.postgresql.org/pgsql-hackers/2003-08/msg00937.php
> 
> I'm not sure I'd store index correlation in a separate table today.
> You've invented something better for functional index statistics, AFAIR.

Make it deal with cross-table fk correlations as well :)

Chris