Re: building a binary-portable database

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Alexy Khrabrov <deliverable(at)gmail(dot)com>
Cc: John R Pierce <pierce(at)hogranch(dot)com>, pgsql-general(at)postgresql(dot)org
Subject: Re: building a binary-portable database
Date: 2009-07-31 23:09:53
Message-ID: 16545.1249081793@sss.pgh.pa.us
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Alexy Khrabrov <deliverable(at)gmail(dot)com> writes:
> That's doable of course, but I wonder what would it take to get it to
> work as-is, when building pg from source on each box, giving their
> fairly similar characteristics.

It's not promised to work, and if it breaks you get to keep both pieces.

> Or, if time_t is different, would it be a show-stopper?

The pg_controldata output suggests that indeed time_t size difference is
the immediate issue. But there might be other ones lurking behind that.

(FWIW, 8.4 has removed this particular potential platform difference:
http://archives.postgresql.org/pgsql-committers/2008-02/msg00184.php
But I still wouldn't trust copying DB files between significantly
different OSes.)

regards, tom lane

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