On Tue, Aug 17, 2021 at 11:08:59AM +0000, tanghy.fnst@fujitsu.com wrote:
> On Friday, August 6, 2021 11:14 PM, tanghy.fnst@fujitsu.com <tanghy.fnst@fujitsu.com> wrote:
>> Commit 6bf0bc842 replaced float.c's CHECKFLOATVAL() macro with static inline subroutines,
>> but the fix introduced a performance regression as Tom Lane pointed out and fixed at 607f8ce74.
>>
>> Found obsolete CHECKFLOATVAL usage in contrib/btree_gist, and tried to fix it according to 607f8ce74.
>
> Added above patch in commit fest:
> https://commitfest.postgresql.org/34/3287/
Yes, that does not seem wise on performance grounds. The case of
!zero_is_valid is never reached, so it seems like this code was just a
copy-paste from the float code in the backend. Your patch looks right
to me.
--
Michael