Re: FW: Query length limitation in postgres server > 8.2.9
| От | Hartman, Matthew |
|---|---|
| Тема | Re: FW: Query length limitation in postgres server > 8.2.9 |
| Дата | |
| Msg-id | 366642367C5B354197A1E0D27BC175BD02259883@KGHMAIL.KGH.ON.CA обсуждение исходный текст |
| Ответ на | Re: FW: Query length limitation in postgres server > 8.2.9 (<jacob@aers.ca>) |
| Ответы |
Re: FW: Query length limitation in postgres server > 8.2.9
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| Список | pgsql-sql |
> From: pgsql-sql-owner@postgresql.org [mailto:pgsql-sql- > owner@postgresql.org] On Behalf Of jacob@aers.ca > Sent: Thursday, July 09, 2009 1:53 PM > > I've simplified the query to make it easier to look at. > > This one doesn't use the index's and therefore takes about 11713ms to > return. Have you considered joining two tables, one of which is a UNION ALL sum of the identifiers? For example: Select * From MyTable Inner join ( Select 12345 as MyColumn Union all select 45678 Union all select 7890 ) as MyCriteria on MyTable.MyColumn = MyCriteria.MyColumn; Matthew Hartman Programmer/Analyst Information Management, ICP Kingston General Hospital
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