On Tue, Oct 20, 2015 at 10:51 AM, Tomas Vondra <tomas.von...@2ndquadrant.com> wrote: >> Koyotaro's changes to force COLUMN to be required won't get through. >> >> ISTM that we could use COLLECT STATISTICS instead of ADD STATISTICS, and >> use REMOVE STATISTICS instead of DROP STATISTICS. That way we can use >> ALTER TABLE rather than inventing a new command. 5 minute change... > > That seems like a neat idea, actually. I'm not sure COLLECT is a good choice > as it suggest the statistics is actually built, but that only happens during > ANALYZE. But otherwise this seems to solve the issues with keywords and it's > quite simple.
But ADD is no better there. I think ALTER TABLE .. COLLECT STATISTICS isn't any worse than ALTER TABLE ... CLUSTER ON index_name. In both cases, it means, when you do this operation, do it this way. I would suggest that instead of DROP or REMOVE, the opposite should be ALTER TABLE .. NO COLLECT STATISTICS. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
