Re: Index Scans become Seq Scans after VACUUM ANALYSE
От | Bruce Momjian |
---|---|
Тема | Re: Index Scans become Seq Scans after VACUUM ANALYSE |
Дата | |
Msg-id | 200204181335.g3IDZFv27667@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Re: Index Scans become Seq Scans after VACUUM ANALYSE (mlw <markw@mohawksoft.com>) |
Список | pgsql-hackers |
mlw wrote: > I don't think we will agree, we have seen different behaviors, and our > experiences seem to conflict. This however does not mean that either of us is > in error, it just may mean that we use data with very different > characteristics. > > This thread is kind of frustrating for me because over the last couple years I > have seen this problem many times and the answer is always the same, "The > statistics need to be improved." Tom, you and I have gone back and forth about > this more than once. > Have you tried reducing 'random_page_cost' in postgresql.conf. That should solve most of your problems if you would like more index scans. -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 853-3000+ If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill, Pennsylvania19026
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