* quite a lot since we only need to work for a few basic system
* catalogs.
*
- * formrdesc is currently used for: pg_database, pg_authid, pg_auth_members,
- * pg_shseclabel, pg_class, pg_attribute, pg_proc, and pg_type
- * (see RelationCacheInitializePhase2/3).
- *
- * Note that these catalogs can't have constraints (except attnotnull),
+ * The catalogs this is used for can't have constraints (except attnotnull),
* default values, rules, or triggers, since we don't cope with any of that.
* (Well, actually, this only matters for properties that need to be valid
* during bootstrap or before RelationCacheInitializePhase3 runs, and none of