Bborie Park <bkpark(at)ucdavis(dot)edu> writes:
> I'm wondering if there is a way to determine a function's volatility
> in C. The function information provided through fmgr_info() doesn't
> provide it. Ideas?
extern char func_volatile(Oid funcid)
(Most catalog-lookup convenience functions of this ilk can be found in
lsyscache.c, and that's also a good source of prototypes if you need a
field that's not exposed by one of those functions.)
regards, tom lane