@Query(value="select * from contract_change where ds >= ?1 and ds <= ?2 and contract_code = ?3 and del_flag is not true order by ds desc",nativeQuery=true)
@Query(value="SELECT * from contract_change where platform = ?1 and email = ?2 and ds >= ?3 and ds <= ?4 order by ds desc",nativeQuery=true)List<ContractChange>findByPlatformAndEmail(Stringplatform,Stringemail,StringstartDate,StringendDate);
@Query(value="select * from contract_change where content=?1 and contract_code=?2 order by create_time desc limit 1",nativeQuery=true)ContractChangefindByContentCode(Stringtype,StringcontractCode);