Ashutosh Chauhan created HIVE-3950:
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Summary: Remove code for merging files via MR job
Key: HIVE-3950
URL: https://issues.apache.org/jira/browse/HIVE-3950
Project: Hive
Issue Type: Improvement
Components: Query Processor
Reporter: Ashutosh Chauhan
Hive can merge files either via MR job or via map only job. Obviously, doing it
via map-only job is more efficient, but there is an option of doing it via MR
job as well because CombineFileInputFormat is available only in hadoop-0.20 and
later. Since, we no longer support hadoop versions earlier than 20 anymore all
that is now dead code, we should get rid of it.
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