X-Original-To: pgsql-performance-postgresql.org@localhost.postgresql.org Received: from localhost (mx1.hub.org [200.46.208.251]) by postgresql.org (Postfix) with ESMTP id 217B411F653D for ; Tue, 25 Apr 2006 22:04:47 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.208.251]) (amavisd-new, port 10024) with ESMTP id 68986-09 for ; Tue, 25 Apr 2006 22:04:39 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey- Received: from sss.pgh.pa.us (sss.pgh.pa.us [66.207.139.130]) by postgresql.org (Postfix) with ESMTP id 749B611F6213 for ; Tue, 25 Apr 2006 22:04:37 -0300 (ADT) Received: from sss2.sss.pgh.pa.us (tgl@localhost [127.0.0.1]) by sss.pgh.pa.us (8.13.6/8.13.6) with ESMTP id k3Q14Yuq010986; Tue, 25 Apr 2006 21:04:34 -0400 (EDT) To: "Junaili Lie" cc: pgsql-performance@postgresql.org Subject: Re: slow deletes on pgsql 7.4 In-reply-to: <8d04ce990604251714g1f5d99bbn172ec554a49c8374@mail.gmail.com> References: <8d04ce990604251441ya85c42evb47946272536cabe@mail.gmail.com> <9147.1146006558@sss.pgh.pa.us> <8d04ce990604251714g1f5d99bbn172ec554a49c8374@mail.gmail.com> Comments: In-reply-to "Junaili Lie" message dated "Tue, 25 Apr 2006 17:14:56 -0700" Date: Tue, 25 Apr 2006 21:04:34 -0400 Message-ID: <10985.1146013474@sss.pgh.pa.us> From: Tom Lane X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200604/587 X-Sequence-Number: 18671 "Junaili Lie" writes: > ie. delete from scenario where id=3D'1023' is very fast, but delete from > scenario where id=3D'1099' is running forever. What does EXPLAIN show for each of those cases? regards, tom lane