Tycho,You saved us! This problem really bothered us for a while, now we know why we had hard time before. But I think it is a postgres bug. Thanks a lot!
Anna Zhang -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Thursday, March 14, 2002 5:29 PM To: Zhang, Anna Cc: '[EMAIL PROTECTED]' Subject: Re: [ADMIN] seq scan on indexed column On Thu, 14 Mar 2002, Zhang, Anna wrote: > gtld_analysis=# explain SELECT NETBLOCK_START > gtld_analysis-# FROM GTLD_OWNER > gtld_analysis-# WHERE NETBLOCK_START = -2147483648; You might want to try the same query but with the constant integer enclosed in single quotes. I find that (at least for int8) this changes the behaviour wrt index usage -- most probably due to automatic typecasting in the postgresql SQL parser. Hope this helps... Tycho -- Tycho Fruru [EMAIL PROTECTED] Users' impressions of different operating systems, expressed as emoticons: Linux: :) Windows: XP ---------------------------(end of broadcast)--------------------------- TIP 2: you can get off all lists at once with the unregister command (send "unregister YourEmailAddressHere" to [EMAIL PROTECTED])