Re: Index-speeds
От | GH |
---|---|
Тема | Re: Index-speeds |
Дата | |
Msg-id | 20010804053048.F48649@over-yonder.net обсуждение исходный текст |
Ответ на | Index-speeds ("Kapil Tilwani" <karan_pg_2@yahoo.com>) |
Список | pgsql-general |
On Fri, Aug 03, 2001 at 11:35:45PM +0530, some SMTP stream spewed forth: > Hi, > Could you just tell me, why do my Access queries run at least 2 times faster than PG queries and 1.5 times faster than MS-SQL. The query involves one master table containing 10000 records, left - joined for getting Transactional sums from records in other tables... Purchases, Sales, PurReturns, SalesReturns, OtherIssues. > It takes 60-75 seconds in access, 100-120 seconds in SQL Server and 150 seconds in PG We really need more information. We need things like table definitions and queries. > Secondly, is it possible to have an index like : > create index in_a on a.id where a.id>5000 Not in a current release. There was some really good work done on partial indices recently, I suspect they will be in 7.2. > Thanx > Kapil gh -- What, no one sings along with Ricky Martin anymore? My kid sister does (but then, she prefers pico to vi ...) -- Suresh Ramasubramanian, alt.sysadmin.recovery
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