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我试图创建一个带范围分区的表.但它显示以下错误:

主要必须包括表的分区位置中的所有列.

这是我的SQL语句:

CREATE TABLE `tbl_emp_confirmation` (
  `fld_id` int(11) NOT NULL AUTO_INCREMENT,
  `fldemp_id` varchar(100) DEFAULT NULL,
  `fldempname` varchar(100) DEFAULT NULL,
  `fldjoindate` varchar(100) DEFAULT NULL,
  `fldconfirmdate` Date NOT NULL,
  `fldresigndate` varchar(100) DEFAULT NULL,
  `fldstatus` varchar(50) DEFAULT NULL,
  `fldcon_status` varchar(100) DEFAULT NULL,
  UNIQUE KEY `fld_id` (`fld_id`),
  KEY `in_empconfirmation` (`fldemp_id`,`fldempname`,`fldjoindate`,`fldconfirmdate`)
  ) PARTITION BY RANGE ( Month(fldconfirmdate))
  (PARTITION p_JAN VALUES LESS THAN (TO_DAYS('2011-01-01')),
 PARTITION p_FEB VALUES LESS THAN (TO_DAYS('2011-02-01')),
 PARTITION p_MAR VALUES LESS THAN (TO_DAYS('2011-03-01')),
 PARTITION p_APR VALUES LESS THAN (TO_DAYS('2011-04-01')),
 PARTITION p_MAY VALUES …