在成功地将mysql数据库上传到weka并应用一个简单的查询之后，当我按ok时，我得到：
无法从数据库读取：未知数据类型：int。在weka/expirement/databaseutils.props中添加条目。如果类型包含空格，请用反斜杠转义或使用下划线而不是空格
我不费吹灰之力地寻找一个解决办法，但一无所获。
我尝试在databaseutlis.props文件中添加int=5
我试过int\u unsigned=5
我的databaseutils.props文件如下所示

# Database settings for MySQL 3.23.x, 4.x

# 

# General information on database access can be found here:

# https://waikato.github.io/weka-wiki/databases/

# 

# url:     http://www.mysql.com/

# jdbc:    http://www.mysql.com/products/connector/j/

# author:  Fracpete (fracpete at waikato dot ac dot nz)

# version: $Revision: 15255 $

# JDBC driver (comma-separated list)

jdbcDriver=org.gjt.mm.mysql.Driver

# database URL

jdbcURL=jdbc:mysql://zalpha-db.cei00brrdcsc.eu-west-1.rds.amazonaws.com/mqdata

# specific data types

# string, getString() = 0;    --> nominal

# boolean, getBoolean() = 1;  --> nominal

# double, getDouble() = 2;    --> numeric

# byte, getByte() = 3;        --> numeric

# short, getByte()= 4;        --> numeric

# int, getInteger() = 5;      --> numeric

# long, getLong() = 6;        --> numeric

# float, getFloat() = 7;      --> numeric

# date, getDate() = 8;        --> date

# text, getString() = 9;      --> string

# time, getTime() = 10;       --> date

# timestamp, getTime() = 11;  --> date

INT = 5

# other options

CREATE_DOUBLE=DOUBLE
CREATE_STRING=TEXT
CREATE_INT=INT
CREATE_DATE=DATETIME
DateFormat=yyyy-MM-dd HH:mm:ss
checkUpperCaseNames=false
checkLowerCaseNames=false
checkForTable=true

# All the reserved keywords for this database

# Based on the keywords listed at the following URL (2009-04-13):

# http://dev.mysql.com/doc/mysqld-version-reference/en/mysqld-version-reference-reservedwords-5-0.html

Keywords=\
  ADD,\
  ALL,\
  ALTER,\
  ANALYZE,\
  AND,\
  AS,\
  ASC,\
  ASENSITIVE,\
  BEFORE,\
  BETWEEN,\
  BIGINT,\
  BINARY,\
  BLOB,\
  BOTH,\
  BY,\
  CALL,\
  CASCADE,\
  CASE,\
  CHANGE,\
  CHAR,\
  CHARACTER,\
  CHECK,\
  COLLATE,\
  COLUMN,\
  COLUMNS,\
  CONDITION,\
  CONNECTION,\
  CONSTRAINT,\
  CONTINUE,\
  CONVERT,\
  CREATE,\
  CROSS,\
  CURRENT_DATE,\
  CURRENT_TIME,\
  CURRENT_TIMESTAMP,\
  CURRENT_USER,\
  CURSOR,\
  DATABASE,\
  DATABASES,\
  DAY_HOUR,\
  DAY_MICROSECOND,\
  DAY_MINUTE,\
  DAY_SECOND,\
  DEC,\
  DECIMAL,\
  DECLARE,\
  DEFAULT,\
  DELAYED,\
  DELETE,\
  DESC,\
  DESCRIBE,\
  DETERMINISTIC,\
  DISTINCT,\
  DISTINCTROW,\
  DIV,\
  DOUBLE,\
  DROP,\
  DUAL,\
  EACH,\
  ELSE,\
  ELSEIF,\
  ENCLOSED,\
  ESCAPED,\
  EXISTS,\
  EXIT,\
  EXPLAIN,\
  FALSE,\
  FETCH,\
  FIELDS,\
  FLOAT,\
  FLOAT4,\
  FLOAT8,\
  FOR,\
  FORCE,\
  FOREIGN,\
  FROM,\
  FULLTEXT,\
  GOTO,\
  GRANT,\
  GROUP,\
  HAVING,\
  HIGH_PRIORITY,\
  HOUR_MICROSECOND,\
  HOUR_MINUTE,\
  HOUR_SECOND,\
  IF,\
  IGNORE,\
  IN,\
  INDEX,\
  INFILE,\
  INNER,\
  INOUT,\
  INSENSITIVE,\
  INSERT,\
  INT,\
  INT1,\
  INT2,\
  INT3,\
  INT4,\
  INT8,\
  INTEGER,\
  INTERVAL,\
  INTO,\
  IS,\
  ITERATE,\
  JOIN,\
  KEY,\
  KEYS,\
  KILL,\
  LABEL,\
  LEADING,\
  LEAVE,\
  LEFT,\
  LIKE,\
  LIMIT,\
  LINES,\
  LOAD,\
  LOCALTIME,\
  LOCALTIMESTAMP,\
  LOCK,\
  LONG,\
  LONGBLOB,\
  LONGTEXT,\
  LOOP,\
  LOW_PRIORITY,\
  MATCH,\
  MEDIUMBLOB,\
  MEDIUMINT,\
  MEDIUMTEXT,\
  MIDDLEINT,\
  MINUTE_MICROSECOND,\
  MINUTE_SECOND,\
  MOD,\
  MODIFIES,\
  NATURAL,\
  NOT,\
  NO_WRITE_TO_BINLOG,\
  NULL,\
  NUMERIC,\
  ON,\
  OPTIMIZE,\
  OPTION,\
  OPTIONALLY,\
  OR,\
  ORDER,\
  OUT,\
  OUTER,\
  OUTFILE,\
  PRECISION,\
  PRIMARY,\
  PRIVILEGES,\
  PROCEDURE,\
  PURGE,\
  READ,\
  READS,\
  REAL,\
  REFERENCES,\
  REGEXP,\
  RELEASE,\
  RENAME,\
  REPEAT,\
  REPLACE,\
  REQUIRE,\
  RESTRICT,\
  RETURN,\
  REVOKE,\
  RIGHT,\
  RLIKE,\
  SCHEMA,\
  SCHEMAS,\
  SECOND_MICROSECOND,\
  SELECT,\
  SENSITIVE,\
  SEPARATOR,\
  SET,\
  SHOW,\
  SMALLINT,\
  SONAME,\
  SPATIAL,\
  SPECIFIC,\
  SQL,\
  SQLEXCEPTION,\
  SQLSTATE,\
  SQLWARNING,\
  SQL_BIG_RESULT,\
  SQL_CALC_FOUND_ROWS,\
  SQL_SMALL_RESULT,\
  SSL,\
  STARTING,\
  STRAIGHT_JOIN,\
  TABLE,\
  TABLES,\
  TERMINATED,\
  THEN,\
  TINYBLOB,\
  TINYINT,\
  TINYTEXT,\
  TO,\
  TRAILING,\
  TRIGGER,\
  TRUE,\
  UNDO,\
  UNION,\
  UNIQUE,\
  UNLOCK,\
  UNSIGNED,\
  UPDATE,\
  UPGRADE,\
  USAGE,\
  USE,\
  USING,\
  UTC_DATE,\
  UTC_TIME,\
  UTC_TIMESTAMP,\
  VALUES,\
  VARBINARY,\
  VARCHAR,\
  VARCHARACTER,\
  VARYING,\
  WHEN,\
  WHERE,\
  WHILE,\
  WITH,\
  WRITE,\
  XOR,\
  YEAR_MONTH,\
  ZEROFILL

# The character to append to attribute names to avoid exceptions due to

# clashes between keywords and attribute names

KeywordsMaskChar=_

# flags for loading and saving instances using DatabaseLoader/Saver

nominalToStringLimit=50
idColumn=auto_generated_id

有谁解决了这个问题或者知道怎么做吗？