On Wed, 21 Sep 2022 at 11:58, James Sewell <james.sew...@gmail.com> wrote: > Hello Hackers! > > Is it possible to get the current virtual txid from C somehow? > The virtual txid is consisted of MyProc->backendId and MyProc->lxid. Do you mean a C function that returns virtual txid?
> I've looked through the code, but can't seem to find anything other than > getting a NULL when there is no (real) xid assigned. Maybe I'm missing > something? > Do you mean use SQL function to check the virtual? IIRC, there is no such functions. Maybe you can use pg_export_snapshot() to get virtual txid (v10 and later), the filename of exported snapshot consists MyProc->backendId and MyProc->lxid. -- Regrads, Japin Li. ChengDu WenWu Information Technology Co.,Ltd.
