const github.com/jackc/pgx/v5/pgtype.UnknownOID

2 uses

	github.com/jackc/pgx/v5/pgtype (current package)
		pgtype.go#L46: 	UnknownOID             = 705
		pgtype_default.go#L88: 	defaultMap.RegisterType(&Type{Name: "unknown", OID: UnknownOID, Codec: TextCodec{}})