I did as described to alter table and did not see any difference in speed. I am trying to undo the symbolic link to the data array and set it up on raid 5 disks in the machine just to test if there is an issue with the config of the raid 10 array or a problem with the controller.
I am kinda lame at Linux so not sure I have got it yet still testing. Still kind puzzled why it chose tow different option, but one is running windows version of postgres, so maybe that has something to do with it. The data bases and configs (as far as page cost) are the same. Joel Fradkin Wazagua, Inc. 2520 Trailmate Dr Sarasota, Florida 34243 Tel. 941-753-7111 ext 305 [EMAIL PROTECTED] www.wazagua.com Powered by Wazagua Providing you with the latest Web-based technology & advanced tools. C 2004. WAZAGUA, Inc. All rights reserved. WAZAGUA, Inc This email message is for the use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and delete and destroy all copies of the original message, including attachments. -----Original Message----- From: Tom Lane [mailto:[EMAIL PROTECTED] Sent: Thursday, April 14, 2005 11:21 AM To: Dawid Kuroczko Cc: Joel Fradkin; PERFORM Subject: Re: [PERFORM] speed of querry? Dawid Kuroczko <[EMAIL PROTECTED]> writes: > Basically it tells postgres how many values should it keep for > statistics per column. The config default_statistics_target > is the default (= used when creating table) and ALTER... is > a way to change it later. Not quite. default_statistics_target is the value used by ANALYZE for any column that hasn't had an explicit ALTER SET STATISTICS done on it. So you can change default_statistics_target and that will affect existing tables. (It used to work the way you are saying, but that was a few releases back...) regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 3: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly