On Fri, Jan 27, 2023 at 7:40 PM Tom Lane <t...@sss.pgh.pa.us> wrote: > > What are you using it for, that you don't care whether the answer > is trustworthy? >
It's not trustworthy anyway. Xid wraparound might happen during reconnect. I suspect we can design a test that will show that it does not always show correct results during xid->2pc conversion (there is a point in time when xid is not in regular and not in 2pc, and I'm not sure ProcArrayLock is held). Maybe there are other edge cases. Anyway, if a user wants to know the status of xid in case of disconnection they have prepared xacts. Best regards, Andrey Borodin.