Re: Index Scans become Seq Scans after VACUUM ANALYSE

Thomas Lockhart <thomas@fourpalms.org>

From: Thomas Lockhart <thomas@fourpalms.org>
To: Lincoln Yeoh <lyeoh@pop.jaring.my>
Cc: mlw <markw@mohawksoft.com>, Tom Lane <tgl@sss.pgh.pa.us>, Bruce Momjian <pgman@candle.pha.pa.us>, Louis-David Mitterrand <vindex@apartia.org>, pgsql-hackers@postgresql.org
Date: 2002-04-17T15:01:06Z
Lists: pgsql-hackers
...
> Weighing these factors, perhaps once we get one or two complaining about
> postgresql using an index vs 20 complaining about not using an index, then
> the optimizer values have reached a good compromise :). But maybe the ratio
> should be 1 vs 100?

:)

So we should work on collecting those statistics, rather than statistics
on data. What do you think Tom; should we work on a "mailing list based
planner" which adjusts numbers from, say, a web site? That is just too
funny :)))

                   - Thomas