Hey folks. I want to move the extension PR <https://github.com/apache/parquet-format/pull/254> forward. Unfortunately the discussion was spread across the PR, other threads and documents making it slow to progress. To avoid further fragmentation I have put together a document <https://docs.google.com/document/d/1KkoR0DjzYnLQXO-d0oRBv2k157IZU0_injqd4eV4WiI/edit> discussing the extensions mechanism in isolation. I believe the document addresses all the concerns/comments from the PR and mailing list discussions brought forward so far.
I propose we continue the discussion in the document and once everything is addressed, we finalize the PR. Thank you,
