diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ba077a4
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+bin
diff --git a/main.go b/main.go
index 4f7e087..958c955 100644
--- a/main.go
+++ b/main.go
@@ -33,19 +33,21 @@ func main() {
 
 	// fmt.Println('F')
 
-	// _, err = data.QueryEmployeesByColumn(proto.FieldGender, "70")
-	// if err != nil {
-	// 	fmt.Println(err)
-	// }
+  _, err = data.QueryEmployeesByColumn(proto.FieldGender, "70")
+	if err != nil {
+		fmt.Println(err)
+	}
 
-	r := proto.AggregateByColumn(data, proto.FieldRegion, func(ep proto.EmployeePList) float64 {
-		return proto.Max(ep, proto.FieldSalary)
-	})
-	fmt.Println(r)
-	r = proto.AggregateByColumn(data, proto.FieldRegion, func(ep proto.EmployeePList) float64 {
-		return proto.Min(ep, proto.FieldSalary)
-	})
-	fmt.Println(r)
+  // fmt.Println(res)
+
+	// r := proto.AggregateByColumn(data, proto.FieldRegion, func(ep proto.EmployeePList) float64 {
+	// 	return proto.Max(ep, proto.FieldSalary)
+	// })
+	// fmt.Println(r)
+	// r = proto.AggregateByColumn(data, proto.FieldRegion, func(ep proto.EmployeePList) float64 {
+	// 	return proto.Min(ep, proto.FieldSalary)
+	// })
+	// fmt.Println(r)
 	// for key := range result {
 	//   fmt.Println(key)
 	// }