diff --git a/DBEngine.cpp b/DBEngine.cpp
index 9b9aabe..55a245b 100755
--- a/DBEngine.cpp
+++ b/DBEngine.cpp
@@ -84,7 +84,7 @@ void DBEngine::rename(Relation& r, vector<string> oldnames, vector<string> newna
 	}
 }
 
-Relation DBEngine::setUnion(Relation r1, Relation r2){
+/*Relation DBEngine::setUnion(Relation r1, Relation r2){
 	if (r1.getAttributeNames() != r2.getAttributeNames()){
 		cout << "Failure to union: the relations are not union-compatible";
 		return;
@@ -114,4 +114,4 @@ Relation DBEngine::setUnion(Relation r1, Relation r2){
 		Relation new_r("TEMP", new_atts);
 		return new_r;
 	}
-}
\ No newline at end of file
+}*/
\ No newline at end of file
diff --git a/DBEngine.h b/DBEngine.h
index 878a42e..4b8a309 100755
--- a/DBEngine.h
+++ b/DBEngine.h
@@ -21,7 +21,7 @@ public:
 	Relation selection(string attName, string s, Relation r);
 	Relation projection(vector<string> input, Relation r);
 	void rename(Relation& r, vector<string> oldnames, vector<string> newnames);
-	Relation setUnion(Relation r1, Relation r2);
+	//Relation setUnion(Relation r1, Relation r2);
 	//void setDiff();
 	//void crossProduct();
 };
diff --git a/a.out b/a.out
index 141fa42..3302e97 100755
Binary files a/a.out and b/a.out differ