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Re: Union Query Improvement

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To: Ray Bannon <bannonr@xxxxxxxxxxx>
Subject: Re: Union Query Improvement
From: Tom Lane <tgl@xxxxxxxxxxxxx>
Date: Wed, 14 Feb 2007 03:03:08 -0500
Cc: pgsql-general@xxxxxxxxxxxxxx
Comments: In-reply-to Ray Bannon <bannonr@xxxxxxxxxxx> message dated "Tue, 13 Feb 2007 05:46:32 -0800"
In-reply-to: <C1F70138.25C%bannonr@xxxxxxxxxxx>
References: <C1F70138.25C%bannonr@xxxxxxxxxxx>

Ray Bannon <bannonr@xxxxxxxxxxx> writes:
> Any way to write this more efficiently?

UNION -> UNION ALL, perhaps?  Do you really need UNION's duplicate-row-
elimination behavior?

			regards, tom lane

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- Union Query Improvement
  - From: Ray Bannon

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