| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | pgsql-hackers(at)postgresql(dot)org, Roman Kononov <kononov195-pgsql(at)yahoo(dot)com> |
| Cc: | Bruce Momjian <bruce(at)momjian(dot)us>, PostgreSQL-patches <pgsql-patches(at)postgresql(dot)org> |
| Subject: | Re: [BUGS] BUG #2846: inconsistent and confusing handling of underflows, |
| Date: | 2006-12-27 23:19:31 |
| Message-ID: | 25444.1167261571@sss.pgh.pa.us |
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| Lists: | pgsql-hackers pgsql-patches |
Roman Kononov <kononov195-pgsql(at)yahoo(dot)com> writes:
> On 12/27/2006 03:23 PM, Bruce Momjian wrote:
>> Are you sure? As I remember, computation automatically upgrades to
>> 'double'. See this program and output:
> This is platform- and compiler- dependent:
... and probably irrelevant, too. We should store the result into a
float4 variable and then test for isinf() on that; that eliminates the
question of whether the compiler did the multiply in a wider format or
not.
regards, tom lane
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