Re: Increasing pattern index query speed
От | Andrus |
---|---|
Тема | Re: Increasing pattern index query speed |
Дата | |
Msg-id | B0DF162C81E84748A71F9FA153ED7BA2@andrusnotebook обсуждение исходный текст |
Ответ на | Re: Increasing pattern index query speed (Richard Huxton <dev@archonet.com>) |
Ответы |
Re: Increasing pattern index query speed
Re: Increasing pattern index query speed |
Список | pgsql-performance |
Richard, > And the results were? Results are provided in bottom of the message to which you replied. > One problem at a time. Let's get the pattern-matching speed problems on > your live server sorted, then we can look at different queries. First message in this thread described the issue with query having additional condition AND dok.kuupaev BETWEEN '2008-11-21' AND '2008-11-21' It seems that this problem occurs when pattern matching and BETWEEN conditions are used in same query. According to Scott Garey great recommendation I added ALTER TABLE rid ALTER COLUMN toode SET STATISTICS 1000; This fixes testcase in live server, see my other message. Is it OK to run ALTER TABLE rid ALTER COLUMN toode SET STATISTICS 1000 in prod database or should I try to decrease 1000 to smaller value ? rid is big increasing table and is changed frequently, mostly by adding rows. Andrus.
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