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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-12192) Hive should carry out timestamp computations in UTC
Date Tue, 26 Jun 2018 01:37:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-12192?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16523044#comment-16523044
] 

Hive QA commented on HIVE-12192:
--------------------------------



Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12929098/HIVE-12192.26.patch

{color:green}SUCCESS:{color} +1 due to 80 test(s) being added or modified.

{color:red}ERROR:{color} -1 due to 32 failed/errored test(s), 14590 tests executed
*Failed tests:*
{noformat}
TestBeeLineDriver - did not produce a TEST-*.xml file (likely timed out) (batchId=258)
TestDummy - did not produce a TEST-*.xml file (likely timed out) (batchId=258)
TestMinimrCliDriver - did not produce a TEST-*.xml file (likely timed out) (batchId=258)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[cast_on_constant] (batchId=25)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[parquet_vectorization_13] (batchId=53)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[parquet_vectorization_7] (batchId=88)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[vectorization_13] (batchId=52)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[vectorization_7] (batchId=45)
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver[vectorized_timestamp] (batchId=81)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[vector_interval_2] (batchId=172)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[vectorization_13] (batchId=168)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[vectorization_7] (batchId=166)
org.apache.hadoop.hive.cli.TestMiniLlapLocalCliDriver.testCliDriver[vectorized_timestamp]
(batchId=175)
org.apache.hadoop.hive.cli.TestSparkCliDriver.testCliDriver[parquet_vectorization_13] (batchId=131)
org.apache.hadoop.hive.cli.TestSparkCliDriver.testCliDriver[parquet_vectorization_7] (batchId=146)
org.apache.hadoop.hive.cli.TestSparkCliDriver.testCliDriver[vectorization_13] (batchId=130)
org.apache.hadoop.hive.cli.TestSparkPerfCliDriver.testCliDriver[query12] (batchId=260)
org.apache.hadoop.hive.cli.TestSparkPerfCliDriver.testCliDriver[query16] (batchId=260)
org.apache.hadoop.hive.cli.TestSparkPerfCliDriver.testCliDriver[query20] (batchId=260)
org.apache.hadoop.hive.cli.TestSparkPerfCliDriver.testCliDriver[query21] (batchId=260)
org.apache.hadoop.hive.cli.TestSparkPerfCliDriver.testCliDriver[query32] (batchId=260)
org.apache.hadoop.hive.cli.TestSparkPerfCliDriver.testCliDriver[query37] (batchId=260)
org.apache.hadoop.hive.cli.TestSparkPerfCliDriver.testCliDriver[query40] (batchId=260)
org.apache.hadoop.hive.cli.TestSparkPerfCliDriver.testCliDriver[query5] (batchId=260)
org.apache.hadoop.hive.cli.TestSparkPerfCliDriver.testCliDriver[query77] (batchId=260)
org.apache.hadoop.hive.cli.TestSparkPerfCliDriver.testCliDriver[query80] (batchId=260)
org.apache.hadoop.hive.cli.TestSparkPerfCliDriver.testCliDriver[query82] (batchId=260)
org.apache.hadoop.hive.cli.TestSparkPerfCliDriver.testCliDriver[query92] (batchId=260)
org.apache.hadoop.hive.cli.TestSparkPerfCliDriver.testCliDriver[query94] (batchId=260)
org.apache.hadoop.hive.cli.TestSparkPerfCliDriver.testCliDriver[query95] (batchId=260)
org.apache.hadoop.hive.cli.TestSparkPerfCliDriver.testCliDriver[query98] (batchId=260)
org.apache.hive.jdbc.miniHS2.TestMiniHS2.testConfInSession (batchId=249)
{noformat}

Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/12132/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/12132/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-12132/

Messages:
{noformat}
Executing org.apache.hive.ptest.execution.TestCheckPhase
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.YetusPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
Tests exited with: TestsFailedException: 32 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12929098 - PreCommit-HIVE-Build

> Hive should carry out timestamp computations in UTC
> ---------------------------------------------------
>
>                 Key: HIVE-12192
>                 URL: https://issues.apache.org/jira/browse/HIVE-12192
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Hive
>            Reporter: Ryan Blue
>            Assignee: Jesus Camacho Rodriguez
>            Priority: Blocker
>              Labels: timestamp
>             Fix For: 3.1.0
>
>         Attachments: HIVE-12192.01.patch, HIVE-12192.02.patch, HIVE-12192.03.patch, HIVE-12192.04.patch,
HIVE-12192.05.patch, HIVE-12192.06.patch, HIVE-12192.07.patch, HIVE-12192.08.patch, HIVE-12192.09.patch,
HIVE-12192.10.patch, HIVE-12192.11.patch, HIVE-12192.12.patch, HIVE-12192.13.patch, HIVE-12192.14.patch,
HIVE-12192.15.patch, HIVE-12192.16.patch, HIVE-12192.17.patch, HIVE-12192.18.patch, HIVE-12192.19.patch,
HIVE-12192.20.patch, HIVE-12192.21.patch, HIVE-12192.22.patch, HIVE-12192.23.patch, HIVE-12192.24.patch,
HIVE-12192.25.patch, HIVE-12192.26.patch, HIVE-12192.patch
>
>
> Hive currently uses the "local" time of a java.sql.Timestamp to represent the SQL data
type TIMESTAMP WITHOUT TIME ZONE. The purpose is to be able to use {{Timestamp#getYear()}}
and similar methods to implement SQL functions like {{year}}.
> When the SQL session's time zone is a DST zone, such as America/Los_Angeles that alternates
between PST and PDT, there are times that cannot be represented because the effective zone
skips them.
> {code}
> hive> select TIMESTAMP '2015-03-08 02:10:00.101';
> 2015-03-08 03:10:00.101
> {code}
> Using UTC instead of the SQL session time zone as the underlying zone for a java.sql.Timestamp
avoids this bug, while still returning correct values for {{getYear}} etc. Using UTC as the
convenience representation (timestamp without time zone has no real zone) would make timestamp
calculations more consistent and avoid similar problems in the future.
> Notably, this would break the {{unix_timestamp}} UDF that specifies the result is with
respect to ["the default timezone and default locale"|https://cwiki.apache.org/confluence/display/Hive/LanguageManual+UDF#LanguageManualUDF-DateFunctions].
That function would need to be updated to use the {{System.getProperty("user.timezone")}}
zone.



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