| From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Neil Conway <neilc(at)samurai(dot)com>, Fabien COELHO <coelho(at)cri(dot)ensmp(dot)fr>, Christopher Kings-Lynne <chriskl(at)familyhealth(dot)com(dot)au>, PostgreSQL Developers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: bitwise and/or aggregate functions? |
| Date: | 2004-05-19 01:16:13 |
| Message-ID: | 200405190116.i4J1GDD01435@candle.pha.pa.us |
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| Lists: | pgsql-hackers |
Tom Lane wrote:
> Neil Conway <neilc(at)samurai(dot)com> writes:
> > Fabien COELHO wrote:
> >> Neil - can you check your SQL2003 copy to see if it mentions standard
> >> aggregates on bit types?
>
> > I couldn't see any mention of any aggregates specific to the bit types,
>
> There certainly are none, since in fact SQL2003 removes the BIT types
> entirely. See Annex E:
>
> 2) ISO/IEC 9075-2:1999 defined data types called BIT and BIT VARYING.
> These data types have been deleted from this edition of ISO/IEC 9075.
Understand. To me, allowing bitwise and boolean aggregates on a column
seemed like a natural capability we should have.
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
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