Hello Zoltan Borok-Nagy, Tim Armstrong, Impala Public Jenkins,

I'd like you to reexamine a change. Please visit

    http://gerrit.cloudera.org:8080/11057

to look at the new patch set (#9).

Change subject: IMPALA-5050: Add support to read TIMESTAMP_MILLIS and 
TIMESTAMP_MICROS from Parquet
......................................................................

IMPALA-5050: Add support to read TIMESTAMP_MILLIS and TIMESTAMP_MICROS from 
Parquet

Changes:
- parquet.thrift is updated to a newer version which contains the timestamp
  logical type.
- INT64 columns with converted types TIMESTAMP_MILLIS and TIMESTAMP_MICROS
  can be read as TIMESTAMP.
- If the logical type is timestamp, then the type will contain the
  information whether the UTC->local conversion is necessary. This
  feature is only supported for the new timestamp types, so INT96
  timestamps must still use flag convert_legacy_hive_parquet_utc_timestamps.
- Min/max stat filtering is enabled again for columns that need UTC->local
  conversion. This was disabled in IMPALA-7559 because it could incorrectly
  drop column chunks.

TODOs:
- I plan to rebase one more time integrate UtcFromUnixTimeMillis()
  from  https://gerrit.cloudera.org/#/c/11183/

Change-Id: I4c7c01fffa31b3d2ca3480adf6ff851137dadac3
---
M be/src/exec/hdfs-parquet-scanner.cc
M be/src/exec/hdfs-parquet-scanner.h
M be/src/exec/parquet-column-readers.cc
M be/src/exec/parquet-column-readers.h
M be/src/exec/parquet-column-stats.cc
M be/src/exec/parquet-column-stats.h
M be/src/exec/parquet-column-stats.inline.h
M be/src/exec/parquet-common.cc
M be/src/exec/parquet-common.h
M be/src/exec/parquet-metadata-utils.cc
M be/src/exprs/timezone_db.h
M be/src/runtime/timestamp-test.cc
M be/src/runtime/timestamp-value.cc
M be/src/runtime/timestamp-value.h
M be/src/util/dict-encoding.h
M common/thrift/parquet.thrift
M fe/src/main/java/org/apache/impala/analysis/ParquetHelper.java
M testdata/data/README
A testdata/data/int64_timestamps_at_dst_changes.parquet
A testdata/data/int64_timestamps_dict.parq
A testdata/data/int64_timestamps_plain.parq
A testdata/tzdb_tiny/CET
A 
testdata/workloads/functional-query/queries/QueryTest/parquet-int64-timestamps.test
M tests/query_test/test_scanners.py
24 files changed, 867 insertions(+), 116 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/57/11057/9
--
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I4c7c01fffa31b3d2ca3480adf6ff851137dadac3
Gerrit-Change-Number: 11057
Gerrit-PatchSet: 9
Gerrit-Owner: Csaba Ringhofer <csringho...@cloudera.com>
Gerrit-Reviewer: Csaba Ringhofer <csringho...@cloudera.com>
Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
Gerrit-Reviewer: Tim Armstrong <tarmstr...@cloudera.com>
Gerrit-Reviewer: Zoltan Borok-Nagy <borokna...@cloudera.com>

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