Aman Sinha created DRILL-1846:
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Summary: Re-ordering output of a subquery on a different column
causes error
Key: DRILL-1846
URL: https://issues.apache.org/jira/browse/DRILL-1846
Project: Apache Drill
Issue Type: Bug
Reporter: Aman Sinha
Assignee: Aman Sinha
In the following the subquery does an order by on n_regionkey and the outer
query does another order-by on n_nationkey. This query errors out:
{code}
select n.n_nationkey
from (select n_nationkey, n_regionkey from cp.`tpch/nation.parquet`
order by n_regionkey) n
order by n.n_nationkey;
Query failed: Query failed: Unexpected exception during fragment
initialization: SingleMergeExchange only supports a single receiver endpoint
{code}
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