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Re: stddev returns 0 when there is one row - Mailing list pgsql-general

From Tom Lane
Subject Re: stddev returns 0 when there is one row
Date
Msg-id 742.1050942070@sss.pgh.pa.us
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In response to Re: stddev returns 0 when there is one row  (Murthy Kambhampaty <murthy.kambhampaty@goeci.com>)
List pgsql-general
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Murthy Kambhampaty <murthy.kambhampaty@goeci.com> writes:
> Tom, would it be too much trouble to program these in (as STDEV_POP_G and
> STDEV_SMPL_G or some variant?

I'm not volunteering, no.  (For starters, I think you'd need to upgrade
the aggregate code to allow multiple-input aggregates.  Which is worth
doing, but I do not expect to have time to think about such things for
7.4.)

            regards, tom lane

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