+ enum ovsdb_atomic_type key_type)
+ WARN_UNUSED_RESULT;
+
+void ovsdb_datum_sort_assert(struct ovsdb_datum *,
+ enum ovsdb_atomic_type key_type);
+
+size_t ovsdb_datum_sort_unique(struct ovsdb_datum *,
+ enum ovsdb_atomic_type key_type,
+ enum ovsdb_atomic_type value_type);
+