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Re: Numeric 508 datatype

From: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
To: Andreas Pflug <pgadmin(at)pse-consulting(dot)de>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Andrew Dunstan <andrew(at)dunslane(dot)net>,"Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>,Simon Riggs <simon(at)2ndquadrant(dot)com>, pgsql-patches(at)postgresql(dot)org
Subject: Re: Numeric 508 datatype
Date: 2005-11-18 11:32:07
Message-ID: 20051118113207.GA15125@surnet.cl (view raw or flat)
Thread:
Lists: pgsql-generalpgsql-hackerspgsql-patches
Andreas Pflug wrote:
> Tom Lane wrote:
> >Andrew Dunstan <andrew(at)dunslane(dot)net> writes:
> >
> >>However, I don't think we can promise never to change the ondisk 
> >>representation of data, nor the page layout. Sometimes an inplace 
> >>upgrade just won't work, ISTM.
> >
> >We have talked about batching on-disk changes so that they'd only occur
> >once every few release cycles.  But until we have a pg_upgrade, there is
> >no reason to adopt such a policy.
> 
> IMHO such a policy is a _prerequisite_ for somebody to come up 
> implementing pg_upgrade. Why spend time on pg_upgrade if there's no 
> policy to support it?

Is anybody working or considering to work on pg_upgrade, or is all this
hypothetical?  Our past history has seen lots of people offering to work
on pg_upgrade, and none has produced a working version.  Is it fair or
useful to impose restrictions on development just because it's remotely
possible that somebody is going to be motivated enough to consider
producing it?

-- 
Alvaro Herrera                                http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support

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