From: Tom Lane <tgl@sss.pgh.pa.us>
To: Dean Gibson (DB Administrator) <postgresql4@ultimeth.com>
Cc: pgsql-sql <pgsql-sql@postgresql.org>
Subject: Re: What does "merge-joinable join conditions" mean ????
Date: Sun, 15 Jan 2006 18:21:53 -0500
Message-ID: <24299.1137367313@sss.pgh.pa.us> (raw)
In-Reply-To: <43CACC78.7090107@ultimeth.com>
References: <43CAAFA6.6050001@ultimeth.com>
<20060115215448.GA30809@winnie.fuhr.org>
<43CACC78.7090107@ultimeth.com>
"Dean Gibson (DB Administrator)" <postgresql4@ultimeth.com> writes:
> SELECT count(*) FROM "GenAppExtra" FULL JOIN "GeoRestrict" ON callsign
> ~ pattern WHERE region_id = 4 OR geo_region = 4;
> If either of the "region_id = 4" (a field in the right-hand table) or
> "geo_region = 4" (a field in the left-hand table) are removed, the
> SELECT functions (does not give an error message),
Really? The FULL JOIN condition using ~ is the source of the failure,
and I'd be quite surprised if changing WHERE makes it work.
regards, tom lane
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To: pgsql-sql@postgresql.org
Cc: tgl@sss.pgh.pa.us, postgresql4@ultimeth.com
Subject: Re: What does "merge-joinable join conditions" mean ????
In-Reply-To: <24299.1137367313@sss.pgh.pa.us>
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