diff --git a/convert/conversion.go b/convert/conversion.go
index 78a9fd78..b69e345c 100644
--- a/convert/conversion.go
+++ b/convert/conversion.go
@@ -283,11 +283,9 @@ func Assign(dest, src interface{}, originalLocation *time.Location, convertedLoc
 		}
 	}
 
-	var sv reflect.Value
-
 	switch d := dest.(type) {
 	case *string:
-		sv = reflect.ValueOf(src)
+		var sv = reflect.ValueOf(src)
 		switch sv.Kind() {
 		case reflect.Bool,
 			reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64,
diff --git a/dialects/dameng.go b/dialects/dameng.go
index e39e8f1d..b0b66a77 100644
--- a/dialects/dameng.go
+++ b/dialects/dameng.go
@@ -1163,9 +1163,12 @@ func (d *damengDriver) Scan(ctx *ScanContext, rows *core.Rows, types []*sql.Colu
 					}
 					s := ns.String
 					fields := strings.Split(s, "+")
-					return convert.Assign(vv[i], strings.Replace(fields[0], "T", " ", -1), ctx.DBLocation, ctx.UserLocation)
+					if err := convert.Assign(vv[i], strings.Replace(fields[0], "T", " ", -1), ctx.DBLocation, ctx.UserLocation); err != nil {
+						return err
+					}
+				default:
+					return fmt.Errorf("don't support convert %T to %T", t, vv[i])
 				}
-				return fmt.Errorf("don't support convert %T to %T", t, vv[i])
 			}
 		}
 	}
diff --git a/integrations/session_insert_test.go b/integrations/session_insert_test.go
index feeaa5cf..70ec13f3 100644
--- a/integrations/session_insert_test.go
+++ b/integrations/session_insert_test.go
@@ -192,8 +192,8 @@ func TestInsertDefault(t *testing.T) {
 	assert.NoError(t, err)
 	assert.True(t, has)
 	assert.EqualValues(t, -1, di.Status)
-	assert.EqualValues(t, di2.Updated.Unix(), di.Updated.Unix())
-	assert.EqualValues(t, di2.Created.Unix(), di.Created.Unix())
+	assert.EqualValues(t, di2.Updated.Unix(), di.Updated.Unix(), di.Updated)
+	assert.EqualValues(t, di2.Created.Unix(), di.Created.Unix(), di.Created)
 }
 
 func TestInsertDefault2(t *testing.T) {