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From: Jolly Chen <jolly@postgres.Berkeley.EDU>
To: rjt@rivers.dra.hmg.gb
Cc: postgres95@postgres.Berkeley.EDU
Cc: postgres@postgres.Berkeley.EDU
Subject: Re: Endian problems with P95
Date: Fri, 26 May 1995 09:50:00 -0700
Message-ID: <199505261650.JAA05431@arcadia.CS.Berkeley.EDU> (raw)
In-Reply-To: <m0sEyKj-0007UqC@wandle.dra.hmg.gb>


> 
> We are having problems with postgres95. When the postmaster is compiled on 
> a big endian machine only monitors compiled and run on big endian a machine
> can talk to it. When the postmaster is compiled on a little endian machine
> only monitors compiled and run on little endian a machine can talk to it.
> 
> Has anyone else experienced this problem ?
> 

This is a problem that is common to both postgres and postgres95.  The
frontend/backend protocol does not use an architectural neutral format.
For that matter, the data in the database is not stored in an
architectural neutral format, either.  What this means is that you
cannot use client/servers with different word-sizes or different
endian representation.

One way to solve this problem is to change everything to a neutral
format like XDR.  This requires substantial code changes and some small
penalty performances.  We have no current plans to do this in
postgres95 although it is on our (wish we had the time) TODO list.

- Jolly Chen

P.S.  please sent postgres95 specific messages to
postgres95@postgres.berkeley.edu

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