Re: popcount - Mailing list pgsql-hackers

From Tom Lane
Subject Re: popcount
Date
Msg-id 338981.1610984050@sss.pgh.pa.us
Whole thread Raw
In response to Re: popcount  (Peter Eisentraut <peter.eisentraut@enterprisedb.com>)
Responses Re: popcount
Re: popcount
List pgsql-hackers
Peter Eisentraut <peter.eisentraut@enterprisedb.com> writes:
> [ assorted nits ]

At the level of bikeshedding ... I quite dislike using the name "popcount"
for these functions.  I'm aware that some C compilers provide primitives
of that name, but I wouldn't expect a SQL programmer to know that;
without that context the name seems pretty random and unintuitive.
Moreover, it invites confusion with SQL's use of "pop" to abbreviate
"population" in the statistical aggregates, such as var_pop().

Perhaps something along the lines of count_ones() or count_set_bits()
would be more apropos.

            regards, tom lane



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