On Wed, Mar 27, 2024 at 18:54 Robert Haas <robertmh...@gmail.com> wrote:
> On Wed, Mar 27, 2024 at 7:39 AM David Rowley <dgrowle...@gmail.com> wrote: > > Robert, I understand you'd like a bit more from this patch. I'm > > wondering if you planning on blocking another committer from going > > ahead with this? Or if you have a reason why the current state of the > > patch is not a meaningful enough improvement that would justify > > possibly not getting any improvements in this area for PG17? > > So, I think that the first version of the patch, when it got a big > chunk of data, would just flush whatever was already in the buffer and > then send the rest without copying. Correct. The current version, as I > understand it, only does that if the buffer is empty; otherwise, it > copies data as much data as it can into the partially-filled buffer. Yes, currently it should fill and flush the buffer first, if it’s not already empty. Only then it sends the rest without copying. Thanks, Melih
