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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