From: Josh Berkus <josh@agliodbs.com>
To: Bruno Wolff III <bruno@wolff.to>
Cc: pgsql-sql@postgresql.org
Subject: Re: Indexing UNIONs
Date: Wed, 17 Jul 2002 17:19:22 -0700
Message-ID: <200207171719.22224.josh@agliodbs.com> (raw)
In-Reply-To: <20020717120646.GA5520@wolff.to>
References: <20020716114553.GB29323@wolff.to>
<200207161542.23433.josh@agliodbs.com>
<20020717120646.GA5520@wolff.to>
Bruno,
> I think you might be able to do this using (one sided) outer joins of the
event
> table to the Case and Trial Group tables. The join rules will need to work
for
> exactly one of the two tables. You probably will want to use case statements
in
> the select list to pick values from the right table.
Yeah, I'm doing that in some places. It just doesn't work for all queries.
COALESCE() is my friend.
--
-Josh Berkus
Aglio Database Solutions
San Francisco
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To: pgsql-sql@postgresql.org
Cc: josh@agliodbs.com, bruno@wolff.to
Subject: Re: Indexing UNIONs
In-Reply-To: <200207171719.22224.josh@agliodbs.com>
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