Re: another "EXPLAIN -- NO INDEX?" question
От | will trillich |
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Тема | Re: another "EXPLAIN -- NO INDEX?" question |
Дата | |
Msg-id | 20020210114552.B23651@serensoft.com обсуждение исходный текст |
Ответ на | Re: another "EXPLAIN -- NO INDEX?" question (Tom Lane <tgl@sss.pgh.pa.us>) |
Ответы |
Re: another "EXPLAIN -- NO INDEX?" question
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Список | pgsql-general |
On Sun, Feb 10, 2002 at 11:29:57AM -0500, Tom Lane wrote: > Try 7.2, and don't forget to VACUUM ANALYZE after you've loaded the > data. i'm stuck with 7.1 for now, and i do the vacuum analyze nightly... any other ideas? --------- create index hits_by_server on hits(server); hits=# explain hits-# select * from hits where (server = 1 or server = 3); NOTICE: QUERY PLAN: Seq Scan on hits (cost=0.00..8537.01 rows=20205 width=90) EXPLAIN hits=# select count(*) from hits; count -------- 266611 (1 row) hits=# select count(*) from hits where (server=1 or server=3); count ------- 3678 (1 row) -- Legalize Liberty. will@serensoft.com http://sourceforge.net/projects/newbiedoc -- we need your brain! http://www.dontUthink.com/ -- your brain needs us!
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