On Fri, Jun 30, 2023 at 12:16 AM Tom Lane <tgl@sss.pgh.pa.us> wrote:
Pushed with that and defenses added to try_mergejoin_path and try_hashjoin_path. It looks like the various try_partial_xxx_path functions already reject cases that could be problematic. (They will not accept inner parameterization that would lead to the result being parameterized differently from the outer path. By induction, that should be fine.)
Thanks for pushing it!
Yeah, I also checked that and there is no problem with partial join paths. However I found some opportunities for trivial revises there and created a new patch for those at [1].
