postgrespro
diff --git a/‎src/include/relation_info.h
Lines changed: 12 additions & 0 deletions b/‎src/include/relation_info.h
Lines changed: 12 additions & 0 deletions
@@ -159,6 +159,18 @@ typedef struct
 	Oid				parent_rel;
 } PartParentInfo;
 
+/*
+ * CustomConst
+ *		Const with Var pointer
+ *		We can know that is CustomConst by checking `location`. It should be
+ *		equal -2
+ */
+typedef struct
+{
+	Const	 cns;
+	Var		*orig;
+} CustomConst;
+
 /*
  * PartParentSearch
  *		Represents status of a specific cached entry.