On Sun, Apr 3, 2022 at 8:20 AM Justin Pryzby <pry...@telsasoft.com> wrote: > @@ -4126,22 +4126,23 @@ copytup_cluster(Tuplesortstate *state, SortTuple > *stup, void *tup)
> + stup->isnull1 = false; Looks like I might have failed to grok the scheme for encoding null into SortTuple objects. It's clearly uninitialised in some paths, with a special 0 value in datum1. Will need to look more closely with more coffee...
