Re: Built-in binning functions

On 17/06/14 16:15, Robert Haas wrote:
> On Fri, Jun 13, 2014 at 8:22 PM, Petr Jelinek <petr(at)2ndquadrant(dot)com> wrote:
>> here is a patch implementing varwidth_bucket (naming is up for discussion)
>> function which does binning with variable bucket width. The use-cases are
>> same as for width_bucket (=data analytics, mainly histograms), the
>> difference is that width_bucket uses buckets of same width but the
>> varwidth_bucket accepts an sorted array of right-bound thresholds to define
>> the individual buckets.
>>
> I wonder if stuff like this shouldn't live in contrib rather than
> core, but I guess it's probably not worth it for 3 functions.
>

I was wondering the same and I also think that 3 simple functions is not
that much, plus it seems natural extension of the existing width_bucket.

--
Petr Jelinek http://www.2ndQuadrant.com/
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