I've just noticed that we were guilty of very sloppy thinking in defining pg_class.relhasexclusion. The only place that actually *uses* that value, rather than jumping through hoops to maintain it, is BuildIndexInfo --- and what it's looking at is not the pg_class entry of the table, but the pg_class entry of the index. There is no need whatsoever to maintain such a flag at the table level.
This being the case, I think we should move the flag to pg_index (and rename it to indisexclusion). That will get rid of all the semantic fuzziness around it, the need to update it in VACUUM, etc. 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