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Posted to dev@hive.apache.org by "Dong Chen (JIRA)" <ji...@apache.org> on 2015/03/20 05:55:38 UTC

[jira] [Created] (HIVE-10031) Modify the using of jobConf variable in ParquetRecordReaderWrapper constructor

Dong Chen created HIVE-10031:
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             Summary: Modify the using of jobConf variable in ParquetRecordReaderWrapper constructor
                 Key: HIVE-10031
                 URL: https://issues.apache.org/jira/browse/HIVE-10031
             Project: Hive
          Issue Type: Sub-task
            Reporter: Dong Chen
            Assignee: Dong Chen


In {{ParquetRecordReaderWrapper}} constructor, it create splits, set projections and filters in conf, create task context, and then create Parquet record reader. In this procedure, we could improve the logic of conf usage:
1. the clone of jobConf is not necessary. This could speed up getRecordReader a little.
2. the updated jobConf is not passed to Parquet in one case.



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