| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> |
| Cc: | "David E(dot) Wheeler" <david(at)kineticode(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 14:15:35 |
| Message-ID: | 603c8f071001260615q4ea3dec1xe33da54806241085@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Tue, Jan 26, 2010 at 2:14 AM, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> wrote:
> 2010/1/25 Robert Haas <robertmhaas(at)gmail(dot)com>:
>> On Mon, Jan 25, 2010 at 2:27 PM, David E. Wheeler <david(at)kineticode(dot)com> wrote:
>>> On Jan 25, 2010, at 2:09 AM, Peter Eisentraut wrote:
>>>> xmlagg -> concatenates values to form xml datum
>>>> array_agg -> concatenates values to form array datum
>>>> ??? -> concatenates values to form string datum
>>>
>>> concat_agg().
>>
>> I like that one...
>
> why is concat_agg better than listagg ?
Because it doesn't make lists.
Honestly, I don't love concat_agg() either - why should something need
to have agg in the name just because it's an aggregate? I think the
most descriptive name would be something like
concatenate_with_separator(), but that's kind of long.
...Robert
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