On Thu, Oct 12, 2017 at 3:43 PM, Andres Freund <and...@anarazel.de> wrote: > Are we going to rely on the the combine function to stay the same > forever after?
If we change them, it will be a pg_upgrade compatibility break for anyone using hash-partitioned tables with more than one partitioning column. Dump and reload will also break unless --load-via-partition-root is used. In other words, it's not utterly fixed in stone --- we invented --load-via-partition-root primarily to cope with circumstances that could change hash values --- but we sure don't want to be changing it with any regularity, or for a less-than-excellent reason. -- 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
