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Re: 64bit build vs 32 bit build

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Martijn van Oosterhout <kleptog(at)svana(dot)org>
Cc: Dave Cramer <pg(at)fastcrypt(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: 64bit build vs 32 bit build
Date: 2006-05-30 14:36:29
Message-ID: 23741.1148999789@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-hackers
Martijn van Oosterhout <kleptog(at)svana(dot)org> writes:
> On Tue, May 30, 2006 at 08:50:23AM -0400, Dave Cramer wrote:
>> Is it possible to use a binary copy of the cluster on a 64 bit build
>> of pg 7.4.x that was created on a 32bit bild of 7.4.x

> I doubt it very much. Or put another way, no effort has been put into
> making it work...

Even more to the point: the reason it won't work is that MAXALIGN is
probably different in the two builds.  Very recent PG releases check
this via a pg_control field, but 7.4.x will probably just crash.

			regards, tom lane

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