On Tue, 1 Apr 2025 at 23:56, Matthias van de Meent <boekewurm+postg...@gmail.com> wrote: > > On Tue, 1 Apr 2025 at 04:02, Peter Geoghegan <p...@bowt.ie> wrote: > > > > On Fri, Mar 28, 2025 at 5:59 PM Peter Geoghegan <p...@bowt.ie> wrote: > > > Attached is v32, which has very few changes, but does add a new patch: > > > a patch that adds skip-array-specific primitive index scan heuristics > > > to _bt_advance_array_keys (this is > > > v32-0003-Improve-skip-scan-primitive-scan-scheduling.patch). > > > > Attached is v33 > > 0001: > > I just realised we never check whether skip keys' high/low_compare > values generate valid quals, like what you'd see generated for WHERE a > > 5 AND a < 3 AND b = 2; > > This causes a performance regression in the patched version:
Apparently it's not a regression, as we don't have this check in place in the master branch. So, that's an optimization for PG19. Sorry for the noise. Kind regards, Matthias van de Meent Neon (https://neon.tech)
