database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-27 12:41:57 +03:00
Code Activity

Add to DROP todo.

Browse Source
This commit is contained in:
Bruce Momjian
2001-01-12 05:37:37 +00:00
parent 3fbd4d4bb2
commit ed7f37b7b1
2 changed files with 139 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

68
doc/TODO.detail/drop
View File

@ -2,7 +2,7 @@ From pgsql-hackers-owner+M3040@hub.org Thu Jun 8 00:31:01 2000
Received: from renoir.op.net (root@renoir.op.net [207.29.195.4])
by candle.pha.pa.us (8.9.0/8.9.0) with ESMTP id AAA13157
for <pgman@candle.pha.pa.us>; Thu, 8 Jun 2000 00:31:00 -0400 (EDT)
Received: from hub.org (root@hub.org [216.126.84.1]) by renoir.op.net (o1/$Revision: 1.1 $) with ESMTP id AAA01089 for <pgman@candle.pha.pa.us>; Thu, 8 Jun 2000 00:17:19 -0400 (EDT)
Received: from hub.org (root@hub.org [216.126.84.1]) by renoir.op.net (o1/$Revision: 1.2 $) with ESMTP id AAA01089 for <pgman@candle.pha.pa.us>; Thu, 8 Jun 2000 00:17:19 -0400 (EDT)
Received: from hub.org (majordom@localhost [127.0.0.1])
by hub.org (8.10.1/8.10.1) with SMTP id e5846ib99782;
Thu, 8 Jun 2000 00:06:44 -0400 (EDT)
@ -280,7 +280,7 @@ From Inoue@tpf.co.jp Sat Jun 10 01:01:01 2000
Received: from renoir.op.net (root@renoir.op.net [207.29.195.4])
by candle.pha.pa.us (8.9.0/8.9.0) with ESMTP id BAA10355
for <pgman@candle.pha.pa.us>; Sat, 10 Jun 2000 01:01:00 -0400 (EDT)
Received: from sd.tpf.co.jp (sd.tpf.co.jp [210.161.239.34]) by renoir.op.net (o1/$Revision: 1.1 $) with ESMTP id AAA25467 for <pgman@candle.pha.pa.us>; Sat, 10 Jun 2000 00:41:32 -0400 (EDT)
Received: from sd.tpf.co.jp (sd.tpf.co.jp [210.161.239.34]) by renoir.op.net (o1/$Revision: 1.2 $) with ESMTP id AAA25467 for <pgman@candle.pha.pa.us>; Sat, 10 Jun 2000 00:41:32 -0400 (EDT)
Received: from mcadnote1 (ppm110.noc.fukui.nsk.ne.jp [210.161.188.29] (may be forged))
by sd.tpf.co.jp (2.5 Build 2640 (Berkeley 8.8.6)/8.8.4) with SMTP
id NAA03125; Sat, 10 Jun 2000 13:40:40 +0900
@ -411,7 +411,7 @@ From tgl@sss.pgh.pa.us Sat Jun 10 01:31:04 2000
Received: from renoir.op.net (root@renoir.op.net [207.29.195.4])
by candle.pha.pa.us (8.9.0/8.9.0) with ESMTP id BAA10922
for <pgman@candle.pha.pa.us>; Sat, 10 Jun 2000 01:31:03 -0400 (EDT)
Received: from sss2.sss.pgh.pa.us (sss.pgh.pa.us [209.114.166.2]) by renoir.op.net (o1/$Revision: 1.1 $) with ESMTP id BAA27265 for <pgman@candle.pha.pa.us>; Sat, 10 Jun 2000 01:16:07 -0400 (EDT)
Received: from sss2.sss.pgh.pa.us (sss.pgh.pa.us [209.114.166.2]) by renoir.op.net (o1/$Revision: 1.2 $) with ESMTP id BAA27265 for <pgman@candle.pha.pa.us>; Sat, 10 Jun 2000 01:16:07 -0400 (EDT)
Received: from sss2.sss.pgh.pa.us (tgl@localhost [127.0.0.1])
by sss2.sss.pgh.pa.us (8.9.3/8.9.3) with ESMTP id BAA06206;
Sat, 10 Jun 2000 01:14:37 -0400 (EDT)
@ -457,7 +457,7 @@ From dhogaza@pacifier.com Sat Jun 10 09:30:59 2000
Received: from renoir.op.net (root@renoir.op.net [207.29.195.4])
by candle.pha.pa.us (8.9.0/8.9.0) with ESMTP id JAA25987
for <pgman@candle.pha.pa.us>; Sat, 10 Jun 2000 09:30:58 -0400 (EDT)
Received: from smtp.pacifier.com (comet.pacifier.com [199.2.117.155]) by renoir.op.net (o1/$Revision: 1.1 $) with ESMTP id JAA18716 for <pgman@candle.pha.pa.us>; Sat, 10 Jun 2000 09:15:08 -0400 (EDT)
Received: from smtp.pacifier.com (comet.pacifier.com [199.2.117.155]) by renoir.op.net (o1/$Revision: 1.2 $) with ESMTP id JAA18716 for <pgman@candle.pha.pa.us>; Sat, 10 Jun 2000 09:15:08 -0400 (EDT)
Received: from desktop (dsl-dhogaza.pacifier.net [207.202.226.68])
by smtp.pacifier.com (8.9.3/8.9.3pop) with SMTP id GAA15799;
Sat, 10 Jun 2000 06:14:28 -0700 (PDT)
@ -509,7 +509,7 @@ From tgl@sss.pgh.pa.us Sun Jun 11 12:31:03 2000
Received: from renoir.op.net (root@renoir.op.net [207.29.195.4])
by candle.pha.pa.us (8.9.0/8.9.0) with ESMTP id MAA05771
for <pgman@candle.pha.pa.us>; Sun, 11 Jun 2000 12:31:01 -0400 (EDT)
Received: from sss2.sss.pgh.pa.us (sss.pgh.pa.us [209.114.166.2]) by renoir.op.net (o1/$Revision: 1.1 $) with ESMTP id MAA19315 for <pgman@candle.pha.pa.us>; Sun, 11 Jun 2000 12:24:06 -0400 (EDT)
Received: from sss2.sss.pgh.pa.us (sss.pgh.pa.us [209.114.166.2]) by renoir.op.net (o1/$Revision: 1.2 $) with ESMTP id MAA19315 for <pgman@candle.pha.pa.us>; Sun, 11 Jun 2000 12:24:06 -0400 (EDT)
Received: from sss2.sss.pgh.pa.us (tgl@localhost [127.0.0.1])
by sss2.sss.pgh.pa.us (8.9.3/8.9.3) with ESMTP id MAA09503;
Sun, 11 Jun 2000 12:22:42 -0400 (EDT)
@ -720,3 +720,61 @@ Regards.
Hiroshi Inoue
Inoue@tpf.co.jp
From pgsql-hackers-owner+M3050@postgresql.org Thu Jan 11 21:49:43 2001
Received: from mail.postgresql.org (webmail.postgresql.org [216.126.85.28])
by candle.pha.pa.us (8.9.0/8.9.0) with ESMTP id VAA20277
for <pgman@candle.pha.pa.us>; Thu, 11 Jan 2001 21:49:42 -0500 (EST)
Received: from mail.postgresql.org (webmail.postgresql.org [216.126.85.28])
by mail.postgresql.org (8.11.1/8.11.1) with SMTP id f0C2lhp74989;
Thu, 11 Jan 2001 21:47:43 -0500 (EST)
(envelope-from pgsql-hackers-owner+M3050@postgresql.org)
Received: from dynworks.com (adsl-63-206-168-198.dsl.sktn01.pacbell.net [63.206.168.198])
by mail.postgresql.org (8.11.1/8.11.1) with ESMTP id f0C2lNp74855
for <pgsql-hackers@postgresql.org>; Thu, 11 Jan 2001 21:47:23 -0500 (EST)
(envelope-from jdavis@dynworks.com)
Received: from localhost.localdomain (localhost.localdomain [127.0.0.1])
by dynworks.com (Postfix) with ESMTP id CC44F31FAB
for <pgsql-hackers@postgresql.org>; Thu, 11 Jan 2001 18:48:36 -0800 (PST)
Date: Thu, 11 Jan 2001 18:48:36 PST
From: Jeff Davis <jdavis@dynworks.com>
To: pgsql-hackers@postgresql.org
Subject: [HACKERS] alter table drop column
Reply-To: jdavis@dynworks.com
X-Mailer: Spruce 0.6.5 for X11 w/smtpio 0.7.9
MIME-Version: 1.0
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: 8bit
Message-Id: <20010112024836.CC44F31FAB@dynworks.com>
Precedence: bulk
Sender: pgsql-hackers-owner@postgresql.org
Status: OR
I read the transcript of the alter table drop column discussion (old
discussion) at http://www.postgresql.org/docs/pgsql/doc/TODO.detail/drop,
and I have something to add:
People mentioned such ideas as a hidden column and a really deleted column,
and it occurred to me that perhaps "vacuum" would be a good option to use.
When a delete was issued, the column would be hidden (by a negative/invalid
logical column number, it appears was the consensus). Upon issuing a
vacuum, it could perform a complete deletion. This method would allow users
to know that the process may take a while (I think the agreed method for a
complete delete was to "select into..." the right columns and leave out the
deleted ones, then delete the old table).
Furthermore, I liked the idea of some kind of "undelete", as long as it was
just hidden. This could apply to anything that is cleaned out with a vacuum
(before it is cleaned out), although I am not sure how feasible this is,
and it isn't particularly important to me.
Regards,
Jeff
--
Jeff Davis
Dynamic Works
jdavis@dynworks.com
http://dynworks.com