Re: [PATCH] Add pg_lfind8_nonzero() - Mailing list pgsql-hackers

On 14.12.25 14:33, cca5507 wrote:
> With pg_lfind8_nonzero(), we can write the code like this:
> 
> ```
>     if (likely(numberOfAttributes > 0))
>         hasnull = pg_lfind8_nonzero((uint8 *) isnull, numberOfAttributes);
> ```
> 
> The pg_lfind8_nonzero() is faster because we can handle 8 bool values at a time.

Maybe you could try popcount for this?

     hasnull = (pg_popcount((char *) isnull, numberOfAttributes) > 0);