Received: from localhost (unknown [200.46.204.184]) by postgresql.org (Postfix) with ESMTP id 9AE752E2F20 for ; Thu, 13 Dec 2007 17:19:50 -0400 (AST) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.184]) (amavisd-maia, port 10024) with ESMTP id 10845-08 for ; Thu, 13 Dec 2007 17:19:43 -0400 (AST) Received: from gwmta.wicourts.gov (gwmta.wicourts.gov [165.219.244.99]) by postgresql.org (Postfix) with ESMTP id 14A1B2E2F06 for ; Thu, 13 Dec 2007 17:19:46 -0400 (AST) Received: from Courts-MTA by gwmta.wicourts.gov with Novell_GroupWise; Thu, 13 Dec 2007 15:19:45 -0600 Message-Id: <47614D86.EE98.0025.0@wicourts.gov> X-Mailer: Novell GroupWise Internet Agent 7.0.2 Date: Thu, 13 Dec 2007 15:19:34 -0600 From: "Kevin Grittner" To: "Simon Riggs" Cc: Subject: Re: Heavy write activity on first vacuum of fresh TOAST data References: <4760FF69.EE98.0025.0@wicourts.gov> <1197562283.4255.1829.camel@ebony.site> <47611B9D.EE98.0025.0@wicourts.gov> <1197569564.4255.1855.camel@ebony.site> In-Reply-To: <1197569564.4255.1855.camel@ebony.site> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Content-Disposition: inline X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200712/203 X-Sequence-Number: 28019 >>> On Thu, Dec 13, 2007 at 12:12 PM, in message <1197569564.4255.1855.camel@ebony.site>, Simon Riggs wrote:=20 > On Thu, 2007-12-13 at 11:46 -0600, Kevin Grittner wrote: >> If the hint bit changes are written to the WAL ... >=20 > They're not. =20 So one would expect a write-intensive initial vacuum after a PITR-style recovery? =20 What impact would lack of the hint bits have until a vacuum? =20 -Kevin =20