| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Greg Stark <gsstark(at)mit(dot)edu> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Alex Hunsaker <badalex(at)gmail(dot)com>, Thom Brown <thom(at)linux(dot)com>, pgsql-bugs <pgsql-bugs(at)postgresql(dot)org>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Re: [HACKERS] Drop one-argument string_agg? (was Re: string_agg delimiter having no effect with order by) |
| Date: | 2010-08-05 02:37:25 |
| Message-ID: | 19732.1280975845@sss.pgh.pa.us |
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| Lists: | pgsql-bugs pgsql-hackers |
Greg Stark <gsstark(at)mit(dot)edu> writes:
> On Wed, Aug 4, 2010 at 11:19 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> What we are doing here, IMO, is not just changing string_agg() but
>> instituting a project policy that we are not going to offer built-in
>> aggregates with the same names and different numbers of arguments ---
>> otherwise the problem will come right back.
> Well I think this can be a pretty soft policy.
Sure, we could break it given good cause. What I intend with the
opr_sanity test is just that people won't be able to put something
in without being reminded of this consideration.
regards, tom lane
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