Re: Speed Up Offset and Limit Clause
От | PFC |
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Тема | Re: Speed Up Offset and Limit Clause |
Дата | |
Msg-id | op.s9dkn6lycigqcu@apollo13 обсуждение исходный текст |
Ответ на | Speed Up Offset and Limit Clause ("Christian Paul Cosinas" <cpc@cybees.com>) |
Ответы |
Re: Speed Up Offset and Limit Clause
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Список | pgsql-performance |
Why do you want to use it this way ? Explain what you want to do, there probably is another faster solution... On Thu, 11 May 2006 16:45:33 +0200, Christian Paul Cosinas <cpc@cybees.com> wrote: > Hi! > > How can I speed up my server's performance when I use offset and limit > clause. > > For example I have a query: > SELECT * FROM table ORDER BY id, name OFFSET 100000 LIMIT 10000 > > This query takes a long time about more than 2 minutes. > > If my query is: > SELECT * FROM table ORDER BY id, name OFFSET 50000 LIMIT 10000 > It takes about 2 seconds. > > Thanks > > > ---------------------------(end of broadcast)--------------------------- > TIP 9: In versions below 8.0, the planner will ignore your desire to > choose an index scan if your joining column's datatypes do not > match
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