Sean Hsuan-Yi Chu created DRILL-3296:
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Summary: Group By Union Distinct fails at planning
Key: DRILL-3296
URL: https://issues.apache.org/jira/browse/DRILL-3296
Project: Apache Drill
Issue Type: Bug
Components: Query Planning & Optimization
Reporter: Sean Hsuan-Yi Chu
Assignee: Sean Hsuan-Yi Chu
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.
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