Received: from malur.postgresql.org ([2a02:16a8:dc51::56]) by arkaria.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256) (Exim 4.89) (envelope-from ) id 1flYOx-0005al-SG for pgsql-docs@arkaria.postgresql.org; Fri, 03 Aug 2018 11:37:48 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.89) (envelope-from ) id 1flYOv-0000SA-Ty for pgsql-docs@arkaria.postgresql.org; Fri, 03 Aug 2018 11:37:45 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256) (Exim 4.89) (envelope-from ) id 1flYOv-0000S3-O0 for pgsql-docs@lists.postgresql.org; Fri, 03 Aug 2018 11:37:45 +0000 Received: from mail.dbi-services.com ([195.70.1.167] helo=33229-ml-01.dfinet.ch) by magus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256) (Exim 4.89) (envelope-from ) id 1flYOs-0002h9-FB for pgsql-docs@postgresql.org; Fri, 03 Aug 2018 11:37:45 +0000 Received: from 33229-ml-01.dfinet.ch (localhost [127.0.0.1]) by 33229-ml-01.dfinet.ch (Postfix) with ESMTPS id 44A6DC0A25A5 for ; Fri, 3 Aug 2018 13:37:39 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by 33229-ml-01.dfinet.ch (Postfix) with ESMTP id 3772DC023166 for ; Fri, 3 Aug 2018 13:37:39 +0200 (CEST) X-Virus-Scanned: amavisd-new at 33229-ml-01.dfinet.ch Received: from 33229-ml-01.dfinet.ch ([127.0.0.1]) by localhost (33229-ml-01.dfinet.ch [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id AT0Q_kXPtoyV for ; Fri, 3 Aug 2018 13:37:39 +0200 (CEST) Received: from 33229-ml-01.dfinet.ch (33229-ml-01.dfinet.ch [10.128.30.2]) by 33229-ml-01.dfinet.ch (Postfix) with ESMTP id 20357C0A25A5 for ; Fri, 3 Aug 2018 13:37:39 +0200 (CEST) Date: Fri, 3 Aug 2018 13:37:38 +0200 (CEST) From: Daniel Westermann To: pgsql-docs Message-ID: <902754133.670926.1533296258570.JavaMail.zimbra@dbi-services.com> Subject: 66.3. Free Space Map MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="=_aa62115f-4167-4a1f-8690-ba58a8f13fc2" X-Originating-IP: [212.27.185.253] X-Mailer: Zimbra 8.8.7_GA_1964 (ZimbraWebClient - GC66 (Win)/8.8.7_GA_1964) Thread-Index: il6P8QGP31oQCXjTHnlGxxcxmRgQew== Thread-Topic: 66.3. Free Space Map List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Precedence: bulk --=_aa62115f-4167-4a1f-8690-ba58a8f13fc2 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Hi %, while reading this [ https://www.postgresql.org/docs/10/static/storage-fsm.html | https://www.postgresql.org/docs/10/static/storage-fsm.html ] I am wondering if the first sentence should be adjusted. The free space map and the visibility are only there once vacuum touched the table, correct? So when a table never gets vacuumed there will be no free space map. Or do I miss something? Regards, Daniel --=_aa62115f-4167-4a1f-8690-ba58a8f13fc2 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 7bit
Hi %,

while reading this https://www.postgresql.org/docs/10/static/storage-fsm.html I am wondering if the first sentence should be adjusted. The free space map and the visibility are only there once vacuum touched the table, correct? So when a table never gets vacuumed there will be no free space map. Or do I miss something?

Regards,
Daniel
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