At Thu, 29 Nov 2018 15:03:00 -0800, Andres Freund <and...@anarazel.de> wrote in <20181129230300.vkj3csjwk7jt2...@alap3.anarazel.de> > Hi, > > On 2018-11-29 16:23:42 -0500, Robert Haas wrote: > > Generally, I think Andres is wrong to argue that immutability > > shouldn't mean *anything* across major versions. If we can readily > > foresee that something is going to change in the future, then we > > shouldn't mark it immutable. However: > > I was too glib/brief. All I meant is that we shouldn't take immutable to > *guarantee* anything across major versions. We, of course, shouldn't > break things willy-nilly, and consider the consequences of such > potential breaking changes. Including having to reindex. It's not like > that's only the case for changing immutable functions, the index storage > itself etc also matter.
FWIW, I agree to this. # And returning to the topic, I vote for pg_config should be "stable". regards. -- Kyotaro Horiguchi NTT Open Source Software Center