mybatis连接sybase iq数据库执行更新语句时报错[Sybase IQ]Invalid statement

Question

spring mvc + mybatis
做一个用户信息更新操作，传入一个user对象：
{ userCode : admin, userName : null, userPassword : null, boUser : null, boPassword : null, ncUser : null, userGroup : null, defaultOrg : G0000000, isAdmin : null }
然后用mybatis执行update语句

<update id="updateByUserCode" parameterType="com.shanshan.bo.po.SsFundDimPortaluser">
      update SS_FUND_DIM_PORTALUSER 
      <trim prefix="set" suffixOverrides="," >
      <if test="userName != null" >
        USER_NAME = #{userName,jdbcType=VARCHAR},
      </if>
      <if test="userPassword != null" >
        USER_PASSWORD = #{userPassword,jdbcType=VARCHAR},
      </if>
      <if test="boUser != null" >
        BO_USER = #{boUser,jdbcType=VARCHAR},
      </if>
      <if test="boPassword != null" >
        BO_PASSWORD = #{boPassword,jdbcType=VARCHAR},
      </if>
      <if test="ncUser != null" >
        NC_USER = #{ncUser,jdbcType=VARCHAR},
      </if>
      <if test="defaultOrg != null" >
        DEFAULT_ORG = #{defaultOrg,jdbcType=VARCHAR},
      </if>
      <if test="isAdmin != null" >
        ISADMIN = #{isAdmin,jdbcType=VARCHAR},
      </if>
      <if test="userGroup != null" >
        USER_GROUP = #{userGroup,jdbcType=VARCHAR},
      </if>
    </trim>
    where USER_CODE = #{userCode,jdbcType=VARCHAR}
  </update>
  

但是报错！

org.springframework.jdbc.UncategorizedSQLException: 
### Error updating database.  Cause: java.sql.SQLException: [Sybase][JDBC Driver][Sybase IQ]Invalid statement
### The error may involve com.shanshan.bo.mapper.SsFundDimPortaluserMapper.updateByUserCode-Inline
### The error occurred while setting parameters
### SQL: update SS_FUND_DIM_PORTALUSER      set DEFAULT_ORG = ?      where USER_CODE = ?
### Cause: java.sql.SQLException: [Sybase][JDBC Driver][Sybase IQ]Invalid statement
; uncategorized SQLException for SQL []; SQL state [HY000]; error code [-130]; [Sybase][JDBC Driver][Sybase IQ]Invalid statement; nested exception is java.sql.SQLException: [Sybase][JDBC Driver][Sybase IQ]Invalid statement