Re: count * performance issue
От | Bruce Momjian |
---|---|
Тема | Re: count * performance issue |
Дата | |
Msg-id | 200803061533.m26FXPe19222@momjian.us обсуждение исходный текст |
Ответ на | Re: count * performance issue (Craig James <craig_james@emolecules.com>) |
Список | pgsql-performance |
Craig James wrote: > This is a real problem. Countless people (including me) have > spent significant effort rewriting applications because of this > performance flaw in Postgres. Over and over, the response is, > "You don't really need to do that ... change your application." > Well, sure, it's always possible to change the application, but > that misses the point. To most of us users, count() seems like > it should be a trivial operation. On other relational database > systems, it is a trivial operation. > > This is really a significant flaw on an otherwise excellent > relational database system. Have you read the TODO items related to this? -- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB http://postgres.enterprisedb.com + If your life is a hard drive, Christ can be your backup. +
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