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Re: Review: listagg aggregate

Peter Eisentraut <peter_e@gmx.net>

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From: Peter Eisentraut <peter_e@gmx.net>
To: "David E. Wheeler" <david@kineticode.com>
Cc: Pavel Stehule <pavel.stehule@gmail.com>, Robert Haas <robertmhaas@gmail.com>, Scott Bailey <artacus@comcast.net>, "pgsql-hackers@postgresql.org Hackers" <pgsql-hackers@postgresql.org>
Date: 2010-01-26T12:03:25Z
Lists: pgsql-hackers 
On tis, 2010-01-26 at 03:08 -0800, David E. Wheeler wrote:
> On Jan 25, 2010, at 23:14, Pavel Stehule <pavel.stehule@gmail.com>  
> wrote:
> 
> > 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.

What else can it act on?