[TAJO-567] Expression projection bugs

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.8.0
• Component/s: Planner/Optimizer
• Assignee: Hyunsik Choi
• Reporter: Hyunsik Choi
• Created: 29/Jan/14 04:27
• Updated: 29/Jan/14 05:35
• Resolved: 29/Jan/14 05:23

Description

This patch fixes two cases of expression projection bugs. Please take a look at two example cases:

The point of this case is outer join and constant expression.

select c_custkey, o.o_orderkey, 'val' as val from customer left outer join (select * from orders) o on c_custkey = o.o_orderkey

The point of this case is non-column grouping keys.

select upper(lower(l_orderkey::text)) as key, count(1) as total from lineitem group by upper(lower(l_orderkey::text)) order by upper(lower(l_orderkey::text)), total;