Add cases into whitelist

Author: chenghao-intel

sql/hive/compatibility/src/test/scala/org/apache/spark/sql/hive/execution/HiveCompatibilitySuite.scala

@@ -503,6 +503,7 @@ class HiveCompatibilitySuite extends HiveQueryFileTest with BeforeAndAfter {
     "join_hive_626",
     "join_map_ppr",
     "join_nulls",
+    "join_nullsafe",
     "join_rc",
     "join_reorder2",
     "join_reorder3",
@@ -562,6 +563,7 @@ class HiveCompatibilitySuite extends HiveQueryFileTest with BeforeAndAfter {
     "nullscript",
     "optional_outer",
     "orc_dictionary_threshold",
+    "orc_predicate_pushdown",
     "orc_empty_files",
     "order",
     "order2",
@@ -734,6 +736,7 @@ class HiveCompatibilitySuite extends HiveQueryFileTest with BeforeAndAfter {
     "udf_double",
     "udf_E",
     "udf_elt",
+    "udf_equal",
     "udf_exp",
     "udf_field",
     "udf_find_in_set",