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Re: exists <==> not exists ???

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Christian Breimann <chr(at)math(dot)uni-muenster(dot)de>
Cc: pgsql-bugs(at)postgresql(dot)org
Subject: Re: exists <==> not exists ???
Date: 2001-05-11 13:35:00
Message-ID: 3994.989588100@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-bugs
Christian Breimann <chr(at)math(dot)uni-muenster(dot)de> writes:
> When executing a SQL-Query with a "where not exists (...)" Statement,
> the result is wrong. It's the same result as I execute "where exists
> (...)" This mustn't be true.

This is a completely unhelpful bug report.  We need sufficient details
to let us reproduce the problem.

			regards, tom lane

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