Hi Bharath, Yes, that thread has been discussed here. Asim had x-posted the patch to [1]. This thread was more recent when Ashwin and I picked up the patch in Aug 2021, so we continued here. The patch has been significantly updated by us, addressing Michael's long outstanding feedback.
Regards, Soumyadeep (VMware) [1] https://www.postgresql.org/message-id/CANXE4TeinQdw%2BM2Or0kTR24eRgWCOg479N8%3DgRvj9Ouki-tZFg%40mail.gmail.com