| From: | Jeff Davis <pgsql(at)j-davis(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Ian Caulfield <ian(dot)caulfield(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: array_agg and array_accum (patch) |
| Date: | 2008-10-27 15:47:23 |
| Message-ID: | 1225122443.1375.23.camel@jdavis |
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| Lists: | pgsql-hackers |
On Sun, 2008-10-26 at 23:02 -0400, Tom Lane wrote:
> "Ian Caulfield" <ian(dot)caulfield(at)gmail(dot)com> writes:
> > I think array_agg also keeps nulls - although the draft standard I
> > have seems to contradict itself about this...
>
> The SQL:2008 draft I have says, in 10.9 <aggregate function> general
> rule 8g
>
I apologize, clearly I skimmed the standard too fast.
I'll review the standard, allow array_agg() to collect NULLs, perhaps
drop array_accum (if the only difference is the return value on no
input), and resubmit with docs.
Regards,
Jeff Davis
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