Eugene Koifman created HIVE-15844:
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Summary: Add WriteType to Explain Plan of ReduceSinkOperator and
FileSinkOperator
Key: HIVE-15844
URL: https://issues.apache.org/jira/browse/HIVE-15844
Project: Hive
Issue Type: Bug
Components: Transactions
Reporter: Eugene Koifman
Assignee: Eugene Koifman
Fix For: 1.0.0
both FileSinkDesk and ReduceSinkDesk have special code path for Update/Delete
operations. It is not always set correctly for ReduceSink.
ReduceSinkDeDuplication is one place where it gets lost. Even when it isn't set
correctly, elsewhere we set ROW_ID to be the partition column of the
ReduceSinkOperator and UDFToInteger special cases it to extract bucketId from
ROW_ID. We need to modify Explain Plan to record Write Type (i.e.
insert/update/delete) to make sure we have tests that can catch errors here.
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