private void setStatsForNonNativeTable(String dbName, String tableName) throws SemanticException {
    TableName qTableName = HiveTableName.ofNullable(tableName, dbName);
    Map<String, String> mapProp = new HashMap<>();
    mapProp.put(StatsSetupConst.COLUMN_STATS_ACCURATE, null);
    AlterTableUnsetPropertiesDesc alterTblDesc = new AlterTableUnsetPropertiesDesc(qTableName, null, null, false,
        mapProp, false, null);
    this.rootTasks.add(TaskFactory.get(new DDLWork(getInputs(), getOutputs(), alterTblDesc)));
  }
@param totalFiles
         the totalFiles to set
ql/src/java/org/apache/hadoop/hive/ql/parse/SemanticAnalyzer.java