mybatis一对多collection，连表查询参数横跨两张表，子查询参数传递父查询没有的字段，模糊查询

 

父查询中添加临时列，以便映射到子查询中：

case when ('${sellingDate}' != '') then '${sellingDate}' else '' end as sellingDate添加临时列

    
        select id, room_id, gmt_creat,
               gmt_modified, peoples, meal,
               bed_type, room_type, offline,
               deposit,
        case when ('${sellingDate}' != '') then '${sellingDate}' else '' end as sellingDate
        from room_selling
        where room_id = #{roomId}
    
    
        
        
        
        
        
        
        
        
        
        
        
        
    
    
        select *
        from room_selling_date
        where  room_selling_id = #{id} and selling_date like '%${sellingDate}%'
    
    
        
        
        
        
        
        
        
        
        
    

dao类型