how about overriding toString of MyDenseVector?

Author: yhuai

sql/core/src/test/scala/org/apache/spark/sql/UserDefinedTypeSuite.scala

@@ -37,6 +37,10 @@ private[sql] class MyDenseVector(val data: Array[Double]) extends Serializable {
       java.util.Arrays.equals(this.data, v.data)
     case _ => false
   }
+
+  override def toString: String = {
+    data.mkString("[", ",", "]")
+  }
 }
 
 @BeanInfo

sql/hive/src/test/scala/org/apache/spark/sql/sources/hadoopFsRelationSuites.scala

@@ -172,11 +172,10 @@ abstract class HadoopFsRelationTest extends QueryTest with SQLTestUtils with Tes
             .load(file.getCanonicalPath)
             .select(selectedColumns: _*)
 
-        // Read the data back and manually order by data to make sure UDT values are properly
-        // sorted.
+        // Read the data back
         checkAnswer(
-          loadedDF.orderBy(selectedColumns: _*),
-          dfToBeSaved.orderBy(selectedColumns: _*)
+          loadedDF,
+          dfToBeSaved
         )
       }
     }