It looks to me like section 34.10 of the docs might benefit from some
sort of update in light of this patch, since the builtin array_agg now
does the same thing as the proposed user-defined array_accum, only
better. Presumably we should either pick a different example, or add
a note that a builtin is available that does the same thing more
efficiently.
...Robert
On Thu, Nov 13, 2008 at 11:07 AM, Peter Eisentraut <peter_e@gmx.net> wrote:
> Jeff Davis wrote:
>>
>> Here's an updated patch for just array_accum() with some simple docs.
>
> I have committed a "best of Robert Haas and Jeff Davis" array_agg() function
> with standard SQL semantics. I believe this gives the best consistency with
> other aggregate functions for the no-input-rows case. If some other behavior
> is wanted, it is a coalesce() away, as the documentation states.
>
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