Re: index's relpages after table analyzed
От | Litao Wu |
---|---|
Тема | Re: index's relpages after table analyzed |
Дата | |
Msg-id | 20040524172056.26507.qmail@web13123.mail.yahoo.com обсуждение исходный текст |
Ответ на | index's relpages after table analyzed (Litao Wu <litaowu@yahoo.com>) |
Список | pgsql-performance |
From PG http://developer.postgresql.org/docs/postgres/diskusage.html: "(Remember, relpages is only updated by VACUUM and ANALYZE.)" --- Litao Wu <litaowu@yahoo.com> wrote: > Hi, > > After a table analyzed a table, the table's relpages > > of pg_class gets updated, but not those of > associated > indexes, which can be updated by "vacuum analyze". > > Is this a feature or a bug? > > I have some tables and there are almost only > inserts. So I do not care about the "dead tuples", > but do care about the statistics. > > Does the above "future/bug" affect the performance? > > My PG version is 7.3.2. > > Thanks, > > > > > > > __________________________________ > Do you Yahoo!? > Yahoo! Domains ?Claim yours for only $14.70/year > http://smallbusiness.promotions.yahoo.com/offer > > ---------------------------(end of > broadcast)--------------------------- > TIP 8: explain analyze is your friend __________________________________ Do you Yahoo!? Yahoo! Domains � Claim yours for only $14.70/year http://smallbusiness.promotions.yahoo.com/offer
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