Internal Jenkins has submitted this change and it was merged.

Change subject: IMPALA-3943: Address post-merge comments.
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IMPALA-3943: Address post-merge comments.

Adds code comments and issues a warning for Parquet files
with num_rows=0 but at least one non-empty row group.

Change-Id: I72ccf00191afddb8583ac961f1eaf11e5eb28791
Reviewed-on: http://gerrit.cloudera.org:8080/4696
Reviewed-by: Alex Behm <alex.b...@cloudera.com>
Tested-by: Internal Jenkins
---
M be/src/exec/hdfs-parquet-scanner.cc
M common/thrift/generate_error_codes.py
M testdata/workloads/functional-query/queries/QueryTest/parquet-zero-rows.test
3 files changed, 29 insertions(+), 2 deletions(-)

Approvals:
  Internal Jenkins: Verified
  Alex Behm: Looks good to me, approved



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Gerrit-MessageType: merged
Gerrit-Change-Id: I72ccf00191afddb8583ac961f1eaf11e5eb28791
Gerrit-PatchSet: 3
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Alex Behm <alex.b...@cloudera.com>
Gerrit-Reviewer: Alex Behm <alex.b...@cloudera.com>
Gerrit-Reviewer: Internal Jenkins
Gerrit-Reviewer: Tim Armstrong <tarmstr...@cloudera.com>

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