From: | Dennis Gearon <gearond(at)cvc(dot)net> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Stephan Szabo <sszabo(at)megazone(dot)bigpanda(dot)com>, Hervé Piedvache <herve(at)elma(dot)fr>, Darko Prenosil <darko(dot)prenosil(at)finteh(dot)hr>, Postgresql General <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: Why lower's not accept an AS declaration ? |
Date: | 2003-08-18 23:24:46 |
Message-ID: | 3F41603E.7030407@cvc.net |
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Lists: | pgsql-general |
because the people who created it had doctorate degrees? kidding:-)
Tom Lane wrote:
> Stephan Szabo <sszabo(at)megazone(dot)bigpanda(dot)com> writes:
>
>>-- This seems really different from our previous standard reading of SQL92
>>though. It implies that you can't really do stuff on input columns
>>except in very limited cases and that'd be really bad.
>
>
> Yes, it seems fraught with bogus restrictions, which makes me wonder if
> we're interpreting it correctly.
>
> I could understand a definition that says "unqualified names are first
> sought as output column names, and if no match then treated as input
> column names; qualified names are always input column names". Perhaps
> that's what they're really trying to do, but why all the strange
> verbiage?
>
> regards, tom lane
>
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