On Wed, 15 Jul 2020 at 12:24, David Rowley <dgrowle...@gmail.com> wrote: > If we've not seen any performance regressions within 1 week, then I > propose that we (pending final review) push this to allow wider > testing. It seems we're early enough in the PG14 cycle that there's a > large window of time for us to do something about any reported > performance regressions that come in.
I did that final review which ended up in quite a few cosmetic changes. Functionality-wise, it's basically that of the v2 patch with the PARALLEL_SEQSCAN_MAX_CHUNK_SIZE set to 8192. I mentioned that we might want to revisit giving users some influence on the chunk size, but we'll only do so once we see some conclusive evidence that it's worthwhile. David