fix ut failure

Author: mgaido91

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

@@ -39,7 +39,7 @@ class ConfigBehaviorSuite extends QueryTest with SharedSQLContext {
     def computeChiSquareTest(): Double = {
       val n = 10000
       // Trigger a sort
-      val data = spark.range(0, n, 1, 1).sort('id)
+      val data = spark.range(0, n, 1, 1).sort('id.desc)
         .selectExpr("SPARK_PARTITION_ID() pid", "id").as[(Int, Long)].collect()
 
       // Compute histogram for the number of records per partition post sort