Re: [PERFORM] Using LIKE expression problem..
Use the text_pattern_ops operator when creating the index, see: http://www.postgresql.org/docs/7.4/static/indexes-opclass.html Michael Ryan S. Puncia wrote: 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: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Christopher Kings-Lynne Sent: Wednesday, May 12, 2004 3:59 PM To: Michael Ryan S. Puncia Cc: [EMAIL PROTECTED] 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: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Christopher Kings-Lynne Sent: Wednesday, May 12, 2004 2:48 PM To: Michael Ryan S. Puncia Cc: [EMAIL PROTECTED] 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 ---(end of broadcast)--- TIP 4: Don't 'kill -9' the postmaster ---(end of broadcast)--- TIP 7: don't forget to increase your free space map settings
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
Re: [PERFORM] Using LIKE expression problem..
Yes , I already do that but the same result .. LIKE uses seq scan -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Christopher Kings-Lynne Sent: Wednesday, May 12, 2004 2:48 PM To: Michael Ryan S. Puncia Cc: [EMAIL PROTECTED] 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 6: Have you searched our list archives? http://archives.postgresql.org
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: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Christopher Kings-Lynne Sent: Wednesday, May 12, 2004 2:48 PM To: Michael Ryan S. Puncia Cc: [EMAIL PROTECTED] 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
Re: [PERFORM] Using LIKE expression problem..
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: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Christopher Kings-Lynne Sent: Wednesday, May 12, 2004 3:59 PM To: Michael Ryan S. Puncia Cc: [EMAIL PROTECTED] 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: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Christopher Kings-Lynne Sent: Wednesday, May 12, 2004 2:48 PM To: Michael Ryan S. Puncia Cc: [EMAIL PROTECTED] 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 ---(end of broadcast)--- TIP 4: Don't 'kill -9' the postmaster
