Description
hive version:2.1.1
cdh version:6.1.1
when i use 'union all' func to merge subquery into a table,if subquery's order is different,the resultset also different,What is the cause of this?
hive version:2.1.1
cdh version:6.1.1
when i use 'union all' func to merge subquery into a table,if subquery's order is different,the resultset also different,What is the cause of this?