From: Hou, Zhijie/侯 志杰 <houzj.fnst@fujitsu.com>
> For approach 1): I think it could result in infinite recursion.
>
> For example:
> If we first access one built-in function A which have not been cached,
> it need access the pg_proc, When accessing the pg_proc, it internally still need
> some built-in function B to scan.
> At this time, if B is not cached , it still need to fetch function B's parallel flag by
> accessing the pg_proc.proparallel.
> Then it could result in infinite recursion.
>
> So, I think we can consider the approach 2)
Hmm, that makes sense. That's a problem structure similar to that of relcache. Only one choice is left already,
unlessthere's another better idea.
Regards
Takayuki Tsunakawa
