On Fri, Sep 21, 2018 at 11:06 PM Alexander Korotkov <a.korotkov@postgrespro.ru> wrote: > While investigating ProcArrayGroupClearXid() code I wonder why do we have this loop instead of plain pg_atomic_exchange_u32() call?
We can use pg_atomic_exchange_u32 instead of a loop. In fact, clog code uses pg_atomic_exchange_u32 for the same purpose. I think it is better to make the code consistent at both places. Feel free to change it, otherwise, I can take care of it in a few days time.
Thank you for feedback. Pushed.
------ Alexander Korotkov Postgres Professional: http://www.postgrespro.com The Russian Postgres Company
