Re: 13dev failed assert: comparetup_index_btree(): ItemPointer values should never be equal

On Tue, Jul 28, 2020 at 11:40:14AM -0400, James Coleman wrote:
> > This appears to be an issue with d2d8a229b (Incremental Sort), so I will add
> > at: https://wiki.postgresql.org/wiki/PostgreSQL_13_Open_Items
> 
> Is that assumption largely based on the incremental sort patch
> refactoring tuplesort.c a bit? I haven't looked at it much at all, but
> I'm wondering if the issue could also be related to the btree
> duplicates changes in 13 given that we're looking at
> comparetup_index_btree and the datums are equal.

Good point.  I'd looked at something like this to come to my tentative
conclusion.

git log --stat origin/REL_12_STABLE..origin/REL_13_STABLE -- src/backend/utils/sort/*tuple*c

-- 
Justin