A new attribute value must be added to the entity entity class in the code, but there is no corresponding column in the database table

@Data
@EqualsAndHashCode(callSuper = true)
@TableName("hzgs_execute_result")
public class ExecuteResult extends BaseEntity{
    


    /** *  Execution result PK  */
    @TableId(value = "id", type = IdType.ASSIGN_ID)
    private Long id;

    /** *  Basic file table id */
    @TableField(value = "basic_archive_id")
    private Long basicArchiveId;

    /** *  current state  */
    @TableField(value = "proc_status")
    private Integer procStatus;

    /** *  state  */
    @TableField(value = "status")
    private Integer status;

    /** *  equity investment id */
    @TableField(value = "equity_investment_id")
    private Long equityInvestmentId;

    /** *  The update time is empty, fill in the creation time  */
    @TableField(exist = false)
    private Date time;
}

In this entity class, it is necessary to determine whether there is an update time , If there is no update time, assign the creation time to time, If there is an update time, assign the update time to time.Time Not in the database table .
Yes Time Fields use

 @TableField(exist = false)

Note to solve