Re: INSERT WHERE NOT EXISTS

From: Karsten Hilbert <Karsten(dot)Hilbert(at)gmx(dot)net>
To: pgsql-general(at)postgresql(dot)org
Subject: Re: INSERT WHERE NOT EXISTS
Date: 2003-06-27 23:36:30
Message-ID: 20030628013630.B7076@hermes.hilbert.loc
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Because

>>select exists(select * from tablename where [cond])

will return after finding 1 matching row (or am I
wrong ?) while

> SELECT 1 FROM tablename WHERE [cond];

will return a 1 for *each* matching row (just tested).

Karsten
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