Robert Haas <robertmh...@gmail.com> writes: > On Thu, Mar 17, 2016 at 2:31 PM, Tom Lane <t...@sss.pgh.pa.us> wrote: >> So what I would now propose is >> >> typedef void (*create_upper_paths_hook_type) (PlannerInfo *root, >> UpperRelationKind stage, >> RelOptInfo *input_rel); >> >> and have this invoked at each stage right before we call >> create_grouping_paths, create_window_paths, etc.
> Works for me. Now that the commitfest crunch is over, I went back and took care of this loose end. I ended up passing the output_rel as well for each step, to save hook users from having to look that up for themselves. The hook calls are placed immediately before set_cheapest() for each upper rel, so that all core-built Paths are available for inspection. regards, tom lane -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers