protected String getDataType(String dbDataType, int size) {
    String mappedType = super.getDataType(dbDataType, size);
    if (!mappedType.equalsIgnoreCase(ColumnType.VOID_TYPE_NAME)) {
      return mappedType;
    }

    // map any db specific types here.
    switch (dbDataType.toLowerCase())
    {
    default:
      mappedType = ColumnType.VOID_TYPE_NAME;
      break;
    }
    return mappedType;
  }
Fetch a single table with the given name, returns a Hive Table object from the remote database
@return Table A Table object for the matching table, null otherwise.
@throws MetaException To indicate any failures with executing this API
@param tableName
standalone-metastore/metastore-server/src/main/java/org/apache/hadoop/hive/metastore/dataconnector/jdbc/MySQLConnectorProvider.java