Fix small but critical typo ...

src/include/storage/relfilenode.h

@@ -17,6 +17,6 @@ typedef struct RelFileNode
 
 #define	RelFileNodeEquals(node1, node2)	\
 	((node1).relNode == (node2).relNode && \
-	(node2).tblNode == (node2).tblNode)
+	 (node1).tblNode == (node2).tblNode)
 
 #endif	/* RELFILENODE_H */