Probably not helpful, and obviously one of the more archaic parts of postgres, but here's the concrete encoding: https://github.com/postgres/postgres/blob/mast

Probably not helpful, and obviously one of the more archaic parts of postgres, but here's the concrete encoding: https://github.com/postgres/postgres/blob/master/src/include/postgres.h#L168 https://github.com/postgres/postgres/blob/master/src/include...