Hive: work around for non equi left join

Question

Hive does not support non equi joins: The common work around is to move the join condition to the where clause, which work fine when you want an inner join. but what about a

Answer 1

Why not use a WHERE clause that allows for NULL cases separately?

SELECT * FROM OrderLineItem li 
LEFT OUTER JOIN  ProductPrice p 
ON p.ProductID=li.ProductID 
WHERE ( StartDate IS NULL OR OrderDate BETWEEN startDate AND EndDate);

That should take care of it - if the left join matches it'll use the date logic, if it doesn't it'll keep the NULL values intact as a left join should.