| From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
|---|---|
| To: | Michael Loftis <mloftis(at)wgops(dot)com> |
| Cc: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Index Scans become Seq Scans after VACUUM ANALYSE |
| Date: | 2002-04-17 21:41:43 |
| Message-ID: | 200204172141.g3HLfhb06119@candle.pha.pa.us |
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| Lists: | pgsql-hackers |
Michael Loftis wrote:
> As far as the 'planner benchmark suite' so we cans tart gathering more
> statistical data about what costs should be, or are better at, that's an
> excellent idea.
People with different hardware have different random page costs,
clearly. Even different workloads affect it. Added to TODO:
* Add utility to compute accurate random_page_cost value
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
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