diff --git a/src/include/nodes/execnodes.h b/src/include/nodes/execnodes.h
index 6332ea0..845bdf2 100644
--- a/src/include/nodes/execnodes.h
+++ b/src/include/nodes/execnodes.h
@@ -326,6 +326,7 @@ typedef struct JunkFilter
  *		onConflictSetWhere		list of ON CONFLICT DO UPDATE exprs (qual)
  *		PartitionCheck			partition check expression
  *		PartitionCheckExpr		partition check expression state
+ *		PartitionRoot			relation descriptor for parent relation
  * ----------------
  */
 typedef struct ResultRelInfo