执行hiveql时报错:
SemanticException Column xx Found in more than One Tables/Subqueries
Hive中有两张表中拥有同一个字段名称,在这两个表做关联的时候会报这个错误
将其中一个表的重复字段加上别名,然后进行关联查询
select city.city, hotel.hotel, hotel.hotelname from city city,
(select city as hcity ,hotel , hotelname from hotel) hotel
where city.city = hotel.hcity