Horton

Re: popcount

Peter Eisentraut <peter.eisentraut@enterprisedb.com>

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From: Peter Eisentraut <peter.eisentraut@enterprisedb.com>
To: David Fetter <david@fetter.org>, pgsql-hackers <pgsql-hackers@postgresql.org>
Cc: John Naylor <john.naylor@enterprisedb.com>
Date: 2021-03-20T20:01:25Z
Lists: pgsql-hackers 
On 18.03.21 13:51, John Naylor wrote:
> Hi David,
> 
> Just a nitpick:
> 
> +SET bytea_output TO hex;
> 
> Since we don't see the string in the output, I don't immediately see the 
> reason to change the output format here?
> 
> Aside from that, this patch works as expected, and is ready for committer.

I have now read the entire internet on what a suitable name for this 
function could be.  I think the emerging winner is BIT_COUNT(), which 
already exists in MySQL, and also in Python (int.bit_count()) and Java 
(Integer.bitCount()).

Commits

  1. Add bit_count SQL function