> PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
> Subject: Re: pgbench - add pseudo-random permutation function
>
> On Wed, Sep 26, 2018 at 01:20:49PM +0200, Fabien COELHO wrote:
>> So, am I right to deducing that you are satisfied with the current status of
>> the patch, with the nbits implementation either based on popcount (v4) or
>> clz (v5) compiler intrinsics? I think that the clz option is better.
>
> Fabien, please note that v5 does not apply,
Indeed, tests interact with 92a0342 committed on Thursday.
Here is a rebase of the latest version based on CLZ. According to basic
test I made, the underlying hardware instruction seems to be more often
available.
> so I moved this patch to next CF, waiting on author.
I'm going to change its state to "Needs review".
--
Fabien.