On Wednesday, March 10, 2021, J T <jorge(dot)torralba(at)gmail(dot)com> wrote:
> pg_stat_activity.
>
> When wait_event_type is null and state is active, is the session waiting
> on CPU? Can't quite figure out what PG is doing under those conditions.
>
Per the “active” its executing a query. Since its not “waiting” on any
specific internal-to-the-instance resource it is either just doing its
thing or, as you noted, waiting to be given a CPU by the O/S.
David J.