Build errors/warnings against PostgreSQL 16 are fixed. Also, adapted to the change of codes, including:
Get rid of the "new" and "old" entries in a view's rangetable. (Althogh, removed codes were dead codes because pg_ivm doesn't
have any rules in pg_rewrite.)
Rework query relation permission checking
Require empty Bitmapsets to be represented as NULL
Build errors/warnings against PostgreSQL 16 are fixed. Also, adapted to the change of codes, including:
Get rid of the "new" and "old" entries in a view's rangetable. (Althogh, removed codes were dead codes because pg_ivm doesn't have any rules in pg_rewrite.)
Rework query relation permission checking
Require empty Bitmapsets to be represented as NULL