address review comments: add test when engine has special characters

Author: kasakrisz

standalone-metastore/metastore-server/src/test/java/org/apache/hadoop/hive/metastore/TestObjectStore.java

@@ -955,6 +955,12 @@ public void testTableStatisticsOps() throws Exception {
     Assert.assertEquals(0, tabColStats.size());
   }
 
+  @Test
+  public void testDeleteTableColumnStatisticsWhenEngineHasSpecialCharacter() throws Exception {
+    createPartitionedTable(true, true);
+    objectStore.deleteTableColumnStatistics(DEFAULT_CATALOG_NAME, DB1, TABLE1, "test_col1", "special '");
+  }
+
   @Test
   public void testPartitionStatisticsOps() throws Exception {
     createPartitionedTable(true, true);
@@ -1006,6 +1012,14 @@ public void testPartitionStatisticsOps() throws Exception {
     Assert.assertEquals(0, stat.size());
   }
 
+  @Test
+  public void testDeletePartitionColumnStatisticsWhenEngineHasSpecialCharacter() throws Exception {
+    createPartitionedTable(true, true);
+    objectStore.deletePartitionColumnStatistics(DEFAULT_CATALOG_NAME, DB1, TABLE1,
+            "test_part_col=a2", List.of("a2"), null, "special '");
+  }
+
+
   @Test
   public void testAggrStatsUseDB() throws Exception {
     Configuration conf2 = MetastoreConf.newMetastoreConf(conf);