Received: from localhost (unknown [200.46.204.183]) by postgresql.org (Postfix) with ESMTP id ACF959FCB7A for ; Thu, 8 Nov 2007 11:01:26 -0400 (AST) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.183]) (amavisd-maia, port 10024) with ESMTP id 64855-07 for ; Thu, 8 Nov 2007 11:01:13 -0400 (AST) Received: from sss.pgh.pa.us (sss.pgh.pa.us [66.207.139.130]) by postgresql.org (Postfix) with ESMTP id 32DFE9FCB78 for ; Thu, 8 Nov 2007 11:01:13 -0400 (AST) Received: from sss2.sss.pgh.pa.us (tgl@localhost [127.0.0.1]) by sss.pgh.pa.us (8.14.1/8.14.1) with ESMTP id lA8F19BA024221; Thu, 8 Nov 2007 10:01:09 -0500 (EST) To: "Guillaume Smet" cc: pgsql-performance Subject: Re: Estimation problem with a LIKE clause containing a / In-reply-to: <1d4e0c10711080208n6c9875b4tf5882da3ced18532@mail.gmail.com> References: <1d4e0c10711070453q214f089cpd144cbb5193d3c4f@mail.gmail.com> <17767.1194453292@sss.pgh.pa.us> <11467.1194477248@sss.pgh.pa.us> <1d4e0c10711080208n6c9875b4tf5882da3ced18532@mail.gmail.com> Comments: In-reply-to "Guillaume Smet" message dated "Thu, 08 Nov 2007 11:08:33 +0100" Date: Thu, 08 Nov 2007 10:01:09 -0500 Message-ID: <24220.1194534069@sss.pgh.pa.us> From: Tom Lane X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200711/98 X-Sequence-Number: 27513 "Guillaume Smet" writes: > On Nov 8, 2007 12:14 AM, Tom Lane wrote: >> I've applied a patch that might help you: >> http://archives.postgresql.org/pgsql-committers/2007-11/msg00104.php > AFAICS, it doesn't seem to fix the problem. Hmm, can we see the pg_stats row for the ancestors column? regards, tom lane