cleanup HiveInputFormat.getRecordReader()
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Key: HIVE-826
URL: https://issues.apache.org/jira/browse/HIVE-826
Project: Hadoop Hive
Issue Type: Bug
Reporter: Namit Jain
Currently, the columns needed are stored in the job conf during
getRecordReader().
It should be part of mapredWork() and used directly by RCFile record reader.
In future, some metadata may be required by other readers (for eg. HBase may
need something to do a point lookup) - it should be part of mapredWork.
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