Before this patch the Parquet STRUCT reader didn't fill the
position slots: collection position, file position. When users
queried these virtual columns Impala was crashed or returned
incorrect results.
The ORC scanner already worked correctly, but there was no tests
written for it.
Test:
* e2e tests for both ORC / Parquet
Change-Id: I32a808a11f4543cd404ed9f3958e9b4e971ca1f4
Reviewed-on: http://gerrit.cloudera.org:8080/19911
Reviewed-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
