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https://issues.apache.org/jira/browse/PHOENIX-5567?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16971439#comment-16971439
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Alex Batyrshin commented on PHOENIX-5567:
-----------------------------------------
Iv already tried to update jre by TZUpdater tool -
[https://www.oracle.com/technetwork/java/javase/documentation/tzupdater-readme-136440.html]
As i see Phoenix uses org.joda.time.DateTimeZone -
[https://github.com/apache/phoenix/blob/4.14-HBase-1.4/phoenix-core/src/main/java/org/apache/phoenix/expression/function/ConvertTimezoneFunction.java]
>From Joda documentation looks like TZ compiled into jars - "Joda-Time also
>compiles the time zone data into our jar file. However, the key difference is
>that you can update the raw data and recompile the jar at any time"
>[https://www.joda.org/joda-time/tz_update.html]
Looks like Phoenix need recent Joda package
> Incorrect time zones for convert_tz()
> -------------------------------------
>
> Key: PHOENIX-5567
> URL: https://issues.apache.org/jira/browse/PHOENIX-5567
> Project: Phoenix
> Issue Type: Bug
> Affects Versions: 4.14.2
> Reporter: Alex Batyrshin
> Priority: Major
>
> Looks like convert_tz() uses incorrect (old) timezone information for
> 'Europe/Moscow'.
> From October 2014 time zone in Moscow is *always*: UTC+03:00, but Phoenix
> convert summer/winter times to different offset.
> Test cast:
> {code:java}
> 0: jdbc:phoenix:10.73.67.148> select dt as as_is, convert_tz(dt, 'UTC',
> 'Europe/Moscow') from (select to_timestamp('2019-01-01') dt);
> +--------------------------+---------------------------------+
> | AS_IS | DATE '2019-01-01 03:00:00.000' |
> +--------------------------+---------------------------------+
> | 2019-01-01 00:00:00.000 | 2019-01-01 03:00:00.000 |
> +--------------------------+---------------------------------+
> 1 row selected (0.003 seconds)
> 0: jdbc:phoenix:10.73.67.148> select dt as as_is, convert_tz(dt, 'UTC',
> 'Europe/Moscow') from (select to_timestamp('2019-07-01') dt);
> +--------------------------+---------------------------------+
> | AS_IS | DATE '2019-07-01 04:00:00.000' |
> +--------------------------+---------------------------------+
> | 2019-07-01 00:00:00.000 | 2019-07-01 04:00:00.000 |
> +--------------------------+---------------------------------+
> 1 row selected (0.004 seconds)
> {code}
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