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Re: Review: listagg aggregate

From: "David E(dot) Wheeler" <david(at)kineticode(dot)com>
To: Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>
Cc: Robert Haas <robertmhaas(at)gmail(dot)com>, Peter Eisentraut <peter_e(at)gmx(dot)net>, Scott Bailey <artacus(at)comcast(dot)net>, "pgsql-hackers(at)postgresql(dot)org Hackers" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Review: listagg aggregate
Date: 2010-01-26 11:08:16
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers
On Jan 25, 2010, at 23:14, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>  

> why is concat_agg better than listagg ?

Because it's an aggregate that cocatenates values. It's not an  
aggregate that lists things. I also like concat_agg better than  
string_agg because it's not limited to acting on strings.



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