DbInfo *active_db = &old_cluster.dbarr.dbs[dbnum];
PGconn *conn = connectToServer(&old_cluster, active_db->db_name);
- /* Fetch all libraries referenced in this DB */
+ /*
+ * Fetch all libraries referenced in this DB. We can't exclude
+ * the "pg_catalog" schema because, while such functions are not
+ * explicitly dumped by pg_dump, they do reference implicit objects
+ * that pg_dump does dump, e.g. creation of the plperl language.
+ */
ress[dbnum] = executeQueryOrDie(conn,
"SELECT DISTINCT probin "
"FROM pg_catalog.pg_proc "