From: Laurenz Albe <laurenz.albe@cybertec.at>
> On Fri, 2020-07-17 at 05:21 +0000, tsunakawa.takay@fujitsu.com wrote:
> > And most importantly, do other major DBMSs, including Oracle, provide the
> API for
> > preparing a transaction? In other words, will the FDWs other than
> postgres_fdw
> > really be able to take advantage of the new FDW functions to join the 2PC
> processing?
> > I think we need to confirm that there are concrete examples.
>
> I bet they do. There is even a standard for that.
If you're thinking of xa_prepare() defined in the X/Open XA specification, we need to be sure that other FDWs can
reallyutilize this new 2PC mechanism. What I'm especially wondering is when the FDW can call xa_start().
Regards
Takayuki Tsunakawa