Dmitry Ivanov <d.iva...@postgrespro.ru> writes: >> Reading between the lines, I think the problem may be that you're not >> being careful about how you set up custom_scan_tlist. But since the >> core code has zero involvement in that decision, it's hard to see why >> it would be a core code bug.
> I'm sorry, but you didn't understand. It's *the core code* that builds the > targetlist, and sometimes it may decide to provide a physical targetlist, > not the one that's *really needed*. Uh, no, construction of a custom plan node is entirely driven by the PlanCustomPath method as far as I can see. You're free to ignore what create_scan_plan did and insert your own tlist. In particular, if what your custom path actually is is a rescan of something like an IndexOnlyScan, why don't you just copy the IOS's result tlist? regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers