On 5 October 2018 at 09:43, Harry B <harrysungod@xxxxxxxxx> wrote: > Now the big question: How scared should I be relying on this? I don't mind > it breaking on major version upgrades (which would mean I need to dump & > restore my entire set), but how likely is it to change unannounced in a > minor/security release? Unless of course, you break it in a way that makes > custom-hash function impossible. I don't see how we could possibly change it once v11 is out the door. Such a change would break pg_upgrade and I imagine we want that to work for a long time to come yet, at least until there is some other reason that is worthy of breaking it. The bar is likely set pretty high for that. -- David Rowley http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services