Well, you're kind of right. I removed the limit, and now _both_ versions of the query perform a sequence scan!
Oh, I forgot to include in my original post: this is PostgreSQL 7.3.4 (on x86 Linux and sparc Solaris 6) -Joel -----Original Message----- From: Guido Barosio [mailto:[EMAIL PROTECTED] Sent: Wednesday, July 07, 2004 2:46 PM To: Joel McGraw Cc: [EMAIL PROTECTED] Subject: Re: [PERFORM] query plan wierdness? The limit is tricking you. I guess a sequential scan is cheaper than an index scan with the limit 26 found there. I am wrong? Greets -- ------------------------------------------- Guido Barosio Buenos Aires, Argentina ------------------------------------------- -- CONFIDENTIALITY NOTICE -- This message is intended for the sole use of the individual and entity to whom it is addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended addressee, nor authorized to receive for the intended addressee, you are hereby notified that you may not use, copy, disclose or distribute to anyone the message or any information contained in the message. If you have received this message in error, please immediately advise the sender by reply email, and delete the message. Thank you. ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster
