On Wed, Aug 12, 2015 at 4:11 PM, Tom Lane <t...@sss.pgh.pa.us> wrote:
> Peter Geoghegan <p...@heroku.com> writes: > > On Wed, Aug 12, 2015 at 10:30 AM, Alvaro Herrera > > <alvhe...@2ndquadrant.com> wrote: > >> The name count_nulls() suggest an aggregate function to me, though. > > > I thought the same. > > Ditto. I'd be fine with this if we can come up with a name that > doesn't sound like an aggregate. The best I can do offhand is > "number_of_nulls()", which doesn't seem very pretty. > > nulls_in(a, b, c) IN (0, 3) - yes the repetition is not great... David J.