From: Josh Berkus <josh@agliodbs.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
To: josh@agliodbs.com
Cc: pgsql-sql@postgresql.org
Subject: Re: BOOLEAN question
Date: Tue, 29 Oct 2002 12:32:02 -0800
Message-ID: <web-1804001@davinci.ethosmedia.com> (raw)
In-Reply-To: <22789.1035916054@sss.pgh.pa.us>
Tom,
> Perhaps
> SELECT true = ANY (SELECT boolcol FROM ...);
> or
> SELECT true IN (SELECT boolcol FROM ...);
>
> Which is not to say that MAX(bool) might not be a nicer solution;
> but you can definitely do it with SQL-spec constructs.
Based on some rough testing,
SELECT true = ANY ( SELECT boolcol FROM complex query )
Is marginlly faster than
SELECT max(boolcol) FROM complex query
With a custom MAX(boolean) function.
So I'll stick to ANY().
-Josh
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To: pgsql-sql@postgresql.org
Cc: josh@agliodbs.com, tgl@sss.pgh.pa.us
Subject: Re: BOOLEAN question
In-Reply-To: <web-1804001@davinci.ethosmedia.com>
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