>>>>> "Kyotaro" == Kyotaro HORIGUCHI <horiguchi.kyot...@lab.ntt.co.jp> writes:
>> You might want to try running the same test, but after patching >> ExecSupportsMarkRestore to return false for index scans. This will >> cause the planner to insert a Materialize node to handle the >> mark/restore. Kyotaro> Mmm? The patch bt-nopin-v1.patch seems not contain the change Kyotaro> for ExecSupportMarkRestore and the very simple function remain Kyotaro> looking to return true for T_Index(Only)Scan after the patch Kyotaro> applied. Right. I'm suggesting you change that, in order to determine what performance cost, if any, would result from abandoning the idea of doing mark/restore entirely. -- Andrew (irc:RhodiumToad) -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
