Re: Bug about column references within subqueries used in selects

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: NikhilS <nikkhils(at)gmail(dot)com>
Cc: "Merlin Moncure" <mmoncure(at)gmail(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Bug about column references within subqueries used in selects
Date: 2007-04-12 13:45:26
Message-ID: 19318.1176385526@sss.pgh.pa.us
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NikhilS <nikkhils(at)gmail(dot)com> writes:
> Yes this is fine, but in "select columnname from tablename" using column
> references of the other involved table is what I am objecting to.

You can object till you're blue in the face, but this behavior is not
changing because it's *required by spec*. Outer references are a
standard and indeed essential part of SQL.

regards, tom lane

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