| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Neil Conway <neilc(at)samurai(dot)com> |
| Cc: | Atsushi Ogawa <atsushi(dot)ogawa(at)gmail(dot)com>, pgsql-patches(at)postgresql(dot)org |
| Subject: | Re: Allow an alias for the target table in UPDATE/DELETE |
| Date: | 2006-01-22 05:48:06 |
| Message-ID: | 4602.1137908886@sss.pgh.pa.us |
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| Lists: | pgsql-patches |
Neil Conway <neilc(at)samurai(dot)com> writes:
> From looking at SQL2003, it seems to me that this syntax is actually
> specified by the standard:
> <update statement: searched> ::=
> UPDATE <target table> [ [ AS ] <correlation name> ]
> SET <set clause list>
> [ WHERE <search condition> ]
> <delete statement: searched> ::=
> DELETE FROM <target table> [ [ AS ] <correlation name> ]
> [ WHERE <search condition> ]
Interesting, because the AS clause is most definitely *not* in
SQL92 or SQL99.
I'm all for this change, in any case, but it's interesting to notice
that the SQL committee actually does respond to the masses ...
regards, tom lane
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