[TAJO-568] Union query with the same alias names cause NPE

• 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 06:22
• Updated: 03/Feb/14 15:07
• Resolved: 03/Feb/14 15:06

Description

See the title and the following case:

select a.id, a.name from (select id, name from table1) a
union all
select a.id, a.name from (select id, name from table1) a

We should fix it.