| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Samantha Atkins <sjatkins(at)mac(dot)com> |
| Cc: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: what is the date format in binary query results |
| Date: | 2007-12-12 08:04:57 |
| Message-ID: | 14027.1197446697@sss.pgh.pa.us |
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| Lists: | pgsql-general |
Samantha Atkins <sjatkins(at)mac(dot)com> writes:
> This brings up a second question. How should I do byte order
> conversion for 8 byte ints? I can't use hton ntoh routines as they
> max out at 32 bits. Is there a better way?
Well, there's the PDP-endianness of odious memory, but AFAIK all current
platforms are internally consistent about the ordering of smaller and
larger pieces. Look at the float8 and int64 send/recv routines in our
current sources.
> Also, are floating point numbers guaranteed uniform?
No :-( ... although there are darn few machines anymore that don't
at least claim to follow the IEEE 754 spec.
regards, tom lane
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