Re: Win2K Questions
От | Charles H. Woloszynski |
---|---|
Тема | Re: Win2K Questions |
Дата | |
Msg-id | 3DCBEDAE.2030102@clearmetrix.com обсуждение исходный текст |
Ответ на | Win2K Questions ("SV" <ng@dig [NO] italnot [SPAM] hing.com>) |
Ответы |
Re: Win2K Questions
|
Список | pgsql-general |
Richard Huxton wrote: >Depends on usage patterns and how you build your application. There are a >couple of oddities with workarounds: count() and max() aren't very optimised >for example. > You can 'fix' the max() SNAFU with a new query of the form "select field from tbl limit 1 order by field desc" (not precise syntax, but the idea is correct) I call it a SNAFU since it I hate to have to change queries from something obvious to a more obscure format just to workaround an optimizer issue. Not sure if there is an equivalent query to make count() work faster Charlie -- Charles H. Woloszynski ClearMetrix, Inc. 115 Research Drive Bethlehem, PA 18015 tel: 610-419-2210 x400 fax: 240-371-3256 web: www.clearmetrix.com
В списке pgsql-general по дате отправления: