On Fri, Feb 12, 2021 at 1:10 AM Robert Haas <robertmh...@gmail.com> wrote: > > On Thu, Feb 11, 2021 at 5:37 AM Amit Kapila <amit.kapil...@gmail.com> wrote: > > to explain the exact case to you which is not very apparent. The basic > > idea is that we ship/replay all transactions where commit happens > > after the snapshot has a consistent state (SNAPBUILD_CONSISTENT), see > > atop snapbuild.c for details. Now, for transactions where prepare is > > before snapshot state SNAPBUILD_CONSISTENT and commit prepared is > > after SNAPBUILD_CONSISTENT, we need to send the entire transaction > > including prepare at the commit time. > > This might be a dumb question, but: why? > > Is this because the effects of the prepared transaction might > otherwise be included neither in the initial synchronization of the > data nor in any subsequently decoded transaction, thus leaving the > replica out of sync? >
Yes. -- With Regards, Amit Kapila.
