On 2023-12-07 Th 03:37, Junwang Zhao wrote:
The point of this refactor (from my view) is to make it possible to add new copy handlers in extensions, just like access method. As Andres suggested, a system catalog like *pg_copy_handler*, if we split TO and FROM into two sets of routines, does that mean we have to create two catalog( pg_copy_from_handler and pg_copy_to_handler)?
Surely not. Either have two fields, one for the TO handler and one for the FROM handler, or a flag on each row indicating if it's a FROM or TO handler.
cheers andrew -- Andrew Dunstan EDB: https://www.enterprisedb.com
