[DRILL-3296] Group By Union Distinct fails at planning

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.1.0
• Component/s: Query Planning & Optimization
• Assignee: Sean Hsuan-Yi Chu
• Reporter: Sean Hsuan-Yi Chu
• Created: 15/Jun/15 20:18
• Updated: 19/Jun/15 00:44
• Resolved: 19/Jun/15 00:44

Description

For example,
select n_nationkey from
(select n_nationkey from cp.`tpch/nation.parquet`
union select n_nationkey from cp.`tpch/nation.parquet`)
group by n_nationkey

Will fail. Actually, this issue was already resolved in Calcite-675. After picking this commit, this issue will go away.