From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
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To: | Martin Pitt <martin(at)piware(dot)de> |
Cc: | pgsql-ports(at)postgresql(dot)org |
Subject: | Re: 'point' test suite failure on arm |
Date: | 2005-12-20 16:29:52 |
Message-ID: | 236.1135096192@sss.pgh.pa.us |
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Lists: | pgsql-ports |
Martin Pitt <martin(at)piware(dot)de> writes:
> I recently noticed that the PostgreSQL test suite fails on arm in the
> 'point' test (diff pasted below). However, the difference is really
> small and is well within the rounding error range. It just seems that
> the expected output has one digit less than the actual result.
> Is this a mere bug in the test suite? Any idea why it just occurs on
> the arm platform? It works fine on all other 11 platforms of Debian.
Floating point math a bit different on the ARM? The quoted result is
basically sqrt(200::float8), and we've never before heard reports of
different platforms printing different answers, though I suppose it's
possible if the FP hardware is not IEEE-spec. I'd suggest asking
whoever maintains libm for Debian.
regards, tom lane
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