columnTypes, err := DB.Table("user_migrate_columns").Migrator().ColumnTypes(&UserMigrateColumn2{})
	if err != nil {
		t.Fatalf("failed to get column types, got error: %v", err)
	}
	typ := reflect.Indirect(reflect.ValueOf(&UserMigrateColumn2{})).Type()
	numField := typ.NumField()
	if numField != len(columnTypes) {
		t.Fatalf("column's number not match struct and ddl, %d != %d", numField, len(columnTypes))
	}

					case "Birthday":
						if _, ok := first[dbName].(*time.Time); !ok {
							t.Errorf("invalid data type for %v, got %#v", dbName, first[dbName])
						}
					}

					reflectValue := reflect.Indirect(reflect.ValueOf(users[0]))
					AssertEqual(t, first[dbName], reflectValue.FieldByName(name).Interface())
				})
			}
		}
	})

	t.Run("FirstMapWithTable", func(t *testing.T) {
		first := map[string]interface{}{}