Hi, I have two hive tables and I want to do a join only if both the tables have data in them. I don't want the join to happen if one of the table is empty. I tried exploring case statement with the intention that I would do something like select count(*) as val case when val > 0 then else end from table2 However it looks like hive won't allow to perform an evaluation within the case statement, so this approach does not work. Anyone has any input on how to perform this in hive.
Thanks Ranjan
