On Thu, Dec 12, 2019 at 6:32 PM Tom Lane <t...@sss.pgh.pa.us> wrote: > Thomas Munro <thomas.mu...@gmail.com> writes: > > Erm, but I shouldn't have to reindex my hash indexes (at least not > > until someone invents collation-based equality and therefore > > necessarily also collation-based hashing). How can we exclude that? > > Um, we already invented that with nondeterministic collations, no?
Urghlgh, right, thanks, somehow I missed/forgot that that stuff already works for hashing (neat). So we do need to track collation version dependencies for hash indexes, but only for non-deterministic collations. I wonder how best to code that.