On Mon, Mar 29, 2021 at 6:01 AM Amit Kapila <amit.kapila16@gmail.com> wrote:
> A naive question about this scheme: What if the worker that acquires
> the XID writes some row and another worker reads that row before it
> gets to see the XID information? I think it won't treat such a row is
> written by its own transaction. Won't such a scheme lead to different
> behavior than serial inserts or where we have acquired XID before
> starting parallel-operation?
Well, this is the sort of thing that somebody would need to analyze as
part of implementing something like this, but off hand I don't quite
see what the problem is.
--
Robert Haas
EDB: http://www.enterprisedb.com