final valextendedValue: String("\n |The change data from tablestore has two parts: Predefined columns and user defined columns.\n | Predefined Columns:\n | __ots_record_type__ (STRING): The record type of the change data, valid in (PUT, UPDATE, DELETE).\n | __ots_record_timestamp__ (LONG): The record timestamp of the change data, in nanosecond.\n | __ots_column_type_<ColumnName> (STRING):\n | The operation of the column in change data, valid in (PUT, DELETE_ONE_VERSION, DELETE_ALL_VERSION).\n |\n | User defined columns:\n | The user defined schema in DataStreamReader(in option catalog).\n |\n | Example:\n | Suppose user defined 7 columns: PkString, PkInt, col_long, col_string, col_binary, col_double, col_boolean\n | > select __ots_record_type__ AS RecordType, __ots_record_timestamp__ AS RecordTimestamp, PkString, PkInt,\n | ots_col_parser(col_string, __ots_column_type_col_string) AS col_string,\n | ots_col_parser(col_long, __ots_column_type_col_long) AS col_long,\n | ots_col_parser(col_binary, __ots_column_type_col_binary) AS col_binary,\n | ots_col_parser(col_double, __ots_column_type_col_double) AS col_double,\n | ots_col_parser(col_boolean, __ots_column_type_col_boolean) AS col_boolean FROM stream_view;\n | PUT 1595990621936075 00008 1595990621 str1 123456 null 3.1415 true\n |\n ")