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Re: How can I get the last element out of GROUP BY sets?

From:	Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To:	Robert Creager <Robert_Creager(at)LogicalChaos(dot)org>
Cc:	PGSQL <pgsql-sql(at)postgresql(dot)org>
Subject:	Re: How can I get the last element out of GROUP BY sets?
Date:	2004-01-19 05:44:30
Message-ID:	20989.1074491070@sss.pgh.pa.us
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Robert Creager <Robert_Creager(at)LogicalChaos(dot)org> writes:
> ... one piece of data I need is the last value for each GROUP BY
> period. Alas, I cannot figure out how to do this.

SELECT DISTINCT ON (rather than GROUP BY) could get this done for you.

regards, tom lane

In response to

How can I get the last element out of GROUP BY sets? at 2004-01-19 04:28:34 from Robert Creager

Responses

Re: How can I get the last element out of GROUP BY sets? at 2004-01-19 17:38:53 from Robert Creager
Re: How can I get the last element out of GROUP BY sets? at 2004-01-23 02:23:36 from Greg Stark

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