Re: Using LIKE expression problem..
От | Michael Ryan S. Puncia |
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Тема | Re: Using LIKE expression problem.. |
Дата | |
Msg-id | 200405120804.i4C84gh9004444@mail.census.gov.ph обсуждение исходный текст |
Ответ на | Re: Using LIKE expression problem.. (Christopher Kings-Lynne <chriskl@familyhealth.com.au>) |
Ответы |
Re: Using LIKE expression problem..
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Список | pgsql-performance |
Sorry .. I am a newbie and I don't know :( How can I know that I am in C locale ? How can I change my database to use C locale? -----Original Message----- From: pgsql-performance-owner@postgresql.org [mailto:pgsql-performance-owner@postgresql.org] On Behalf Of Christopher Kings-Lynne Sent: Wednesday, May 12, 2004 3:59 PM To: Michael Ryan S. Puncia Cc: pgsql-performance@postgresql.org Subject: Re: [PERFORM] Using LIKE expression problem.. Are you in a non-C locale? Chris Michael Ryan S. Puncia wrote: > Yes , I already do that but the same result .. LIKE uses seq scan > > -----Original Message----- > From: pgsql-performance-owner@postgresql.org > [mailto:pgsql-performance-owner@postgresql.org] On Behalf Of Christopher > Kings-Lynne > Sent: Wednesday, May 12, 2004 2:48 PM > To: Michael Ryan S. Puncia > Cc: pgsql-performance@postgresql.org > Subject: Re: [PERFORM] Using LIKE expression problem.. > > >>In the query plan ..it uses seq scan rather than index scan .. why ? I >>have index on lastname, firtname. > > > Have you run VACUUM ANALYZE; on the table recently? > > Chris > > > ---------------------------(end of broadcast)--------------------------- > TIP 7: don't forget to increase your free space map settings > ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faqs/FAQ.html
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