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Re: aggregation question - Mailing list pgsql-general

From David Rowley
Subject Re: aggregation question
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Msg-id CAKJS1f-7HhYLcDm7vHQSAT2XwkmWXSEfBNE8F0nuYH5W5NEesg@mail.gmail.com
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In response to aggregation question  (Chris Withers <chris@simplistix.co.uk>)
Responses Re: union/difference/intersection question  (Chris Withers <chris@simplistix.co.uk>)
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On 9 December 2015 at 00:44, Chris Withers <chris@simplistix.co.uk> wrote:
Hi All,

I hope this is quite a simple one...

I have a fixtures table containing home_club and away_club, and I'd like to select the distinct list of clubs contained in all rows but in either the home_club or away_club columns.

How would I do that?

Use UNION:

select home_club from fixtures UNION select away_club from fixtures; 

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 David Rowley                   http://www.2ndQuadrant.com/
 PostgreSQL Development, 24x7 Support, Training & Services

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