Sorabh Hamirwasia created DRILL-6665:
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Summary: MergingReceiverBatch produces OK_NEW_SCHEMA post build
schema phase
Key: DRILL-6665
URL: https://issues.apache.org/jira/browse/DRILL-6665
Project: Apache Drill
Issue Type: Bug
Components: Execution - Relational Operators
Affects Versions: 1.14.0
Reporter: Sorabh Hamirwasia
Assignee: Sorabh Hamirwasia
Attachments: Plan.pdf
MergingRecordBatch produces OK_NEW_SCHEMA as part of first output batch post
buildSchema phase. This is not necessary since in BuildSchema phase it already
has the batch with schema and it always produces container of type SV NONE as
well. Because of this behavior query like below doesn't work since there is
HashAgg downstream to MergingReceiver which doesn't handle OK_NEW_SCHEMA post
buildSchema phase.
{code:java}
SELECT cust.c_custkey, cust.c_name, sum(cust.c_acctbal)
FROM (SELECT customer.c_custkey, customer.c_name, customer.c_acctbal
FROM dfs.singleJson.`customer.json` customer
ORDER BY customer.c_name) cust
GROUP BY cust.c_custkey, cust.c_name{code}
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