pass context to custom mapper/reducer
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Key: HIVE-946
URL: https://issues.apache.org/jira/browse/HIVE-946
Project: Hadoop Hive
Issue Type: Improvement
Components: Query Processor
Reporter: Namit Jain
It might be useful to pass some context to custom mapper/reducer process -
the requirement is to identify the transform uniquely if there are multiple
transforms in the same task.
For that, we can pass the operator id of the script operator in some
environment variable.
If anything else is useful, please add to the list.
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