Hello Alexey Serbin, Ashwani Raina, Zihao Ye, Impala Public Jenkins,

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

    http://gerrit.cloudera.org:8080/21492

to look at the new patch set (#3).

Change subject: IMPALA-12370: allow converting timestamps to UTC when writing 
Kudu
......................................................................

IMPALA-12370: allow converting timestamps to UTC when writing Kudu

Before this commit only read support was implemented
(convert_kudu_utc_timestamps=true). This change adds write support:
if write_kudu_utc_timestamps=true, then timestamps are converted
from local time to UTC during INSERT/UPSERT to Kudu. In case of
ambigious conversions (DST changes) the earlier possible UTC
timestamp is written.

To be able to read back Kudu tables written by Impala correctly
convert_kudu_utc_timestamps and write_kudu_utc_timestamps need to
have the same value.

The conversion is implemented by adding to_utc_timestamp() to inserted
timestamp expressions during planning. This allows doing the same
conversion during the pre-insert sorting and partitioning.
Read support is implemented differently - in that case the plan is not
changed and the scanner does the conversion.

Other changes:
- Before this change, verification of tests with TIMESTAMP results
  were skipped when the file format is Kudu. This shouldn't be
  necessary so the skipping was removed.

Change-Id: Ibb4995a64e042e7bb261fcc6e6bf7ffce61e9bd1
---
M be/src/service/query-options.cc
M be/src/service/query-options.h
M common/thrift/ImpalaService.thrift
M common/thrift/Query.thrift
M fe/src/main/java/org/apache/impala/analysis/InsertStmt.java
M fe/src/main/java/org/apache/impala/util/ExprUtil.java
M 
testdata/workloads/functional-query/queries/QueryTest/kudu_predicate_with_timestamp_conversion.test
M 
testdata/workloads/functional-query/queries/QueryTest/kudu_runtime_filter_with_timestamp_conversion.test
M 
testdata/workloads/functional-query/queries/QueryTest/kudu_timestamp_conversion.test
M tests/common/test_result_verifier.py
M tests/query_test/test_kudu.py
11 files changed, 101 insertions(+), 35 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/92/21492/3
--
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: Ibb4995a64e042e7bb261fcc6e6bf7ffce61e9bd1
Gerrit-Change-Number: 21492
Gerrit-PatchSet: 3
Gerrit-Owner: Csaba Ringhofer <[email protected]>
Gerrit-Reviewer: Alexey Serbin <[email protected]>
Gerrit-Reviewer: Ashwani Raina <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Zihao Ye <[email protected]>

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