【MyBatisSystemException 异常】net.sf.jsqlparser.parser.ParseException: Encountered unexpected token: "," ","

org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException:### Error querying database. Cause: com.baomidou.mybatisplus.core.exceptions.MybatisPlusException:.....

Caused by: net.sf.jsqlparser.parser.ParseException: Encountered unexpected token: "," ","
at line 1, column 164.

Was expecting one of:

"&"
"::"
";"
"<<"
">>"
"ACTION"
............................................................................

org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: 
### Error querying database.  Cause: com.baomidou.mybatisplus.core.exceptions.MybatisPlusException: Failed to process, Error SQL: SELECT id,parent_id,`code`,user_id,`type`,source,title,content,end_time,finish_time,contact_id,sid,business_key,urgency,`status`,remind,reminder_show,reminder_time,keep,keep_check,keep_fre,keep_fre_rule,keep_weeks,keep_months,keep_start_date,keep_end_date,tenant_id,create_time,update_time,creator,updater,deleted FROM crm_task WHERE id=?  AND deleted=0
### Cause: com.baomidou.mybatisplus.core.exceptions.MybatisPlusException: Failed to process, Error SQL: SELECT id,parent_id,`code`,user_id,`type`,source,title,content,end_time,finish_time,contact_id,sid,business_key,urgency,`status`,remind,reminder_show,reminder_time,keep,keep_check,keep_fre,keep_fre_rule,keep_weeks,keep_months,keep_start_date,keep_end_date,tenant_id,create_time,update_time,creator,updater,deleted FROM crm_task WHERE id=?  AND deleted=0
    at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:96)
    at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:441)
    at com.sun.proxy.$Proxy151.selectOne(Unknown Source)
org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:151)
    ... 176 common frames omitted
Caused by: net.sf.jsqlparser.parser.ParseException: Encountered unexpected token: "," ","
    at line 1, column 164.
Was expecting one of:

    "&"
    "::"
    ";"
    "<<"
    ">>"
    "ACTION"
    "ACTIVE"
    "ALGORITHM"
    "ARCHIVE"

【问题】执行查询接口第一次请求失败，第二次成功问题。

【原因】经过一步步排查，终于找到bug原因了，竟然是mysql关键词冲突原因！！！

 实体类DO里面使用了mysql的关键词，造成了解析错误原因。

【解决】解决方法，在属性字段上添加 @TableField 注解

@TableField("`keep`")
private Boolean keep;

【结果】