[jira] [Commented] (HIVE-14903) from_utc_time function issue for CET daylight savings

2017-10-11 Thread Eric Lin (JIRA) 

[ 
https://issues.apache.org/jira/browse/HIVE-14903?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16201479#comment-16201479
 ] 

Eric Lin commented on HIVE-14903:
-

Thanks for letting me know [~zsombor.klara], and apologies for the delay.

> from_utc_time function issue for CET daylight savings
> -
>
> Key: HIVE-14903
> URL: https://issues.apache.org/jira/browse/HIVE-14903
> Project: Hive
>  Issue Type: Bug
>  Components: Beeline
>Affects Versions: 2.0.1
>Reporter: Eric Lin
>Priority: Minor
>
> Based on https://en.wikipedia.org/wiki/Central_European_Summer_Time, the 
> summer time is between 1:00 UTC on the last Sunday of March and 1:00 on the 
> last Sunday of October, see test case below:
> Impala:
> {code}
> select from_utc_timestamp('2016-10-30 00:30:00','CET');
> Query: select from_utc_timestamp('2016-10-30 00:30:00','CET')
> +--+
> | from_utc_timestamp('2016-10-30 00:30:00', 'cet') |
> +--+
> | 2016-10-30 01:30:00  |
> +--+
> {code}
> Hive:
> {code}
> select from_utc_timestamp('2016-10-30 00:30:00','CET');
> INFO  : OK
> ++--+
> |  _c0   |
> ++--+
> | 2016-10-30 01:30:00.0  |
> ++--+
> {code}
> MySQL:
> {code}
> mysql> SELECT CONVERT_TZ( '2016-10-30 00:30:00', 'UTC', 'CET' );
> +---+
> | CONVERT_TZ( '2016-10-30 00:30:00', 'UTC', 'CET' ) |
> +---+
> | 2016-10-30 02:30:00   |
> +---+
> {code}
> At 00:30AM UTC, the daylight saving has not finished so the time different 
> should still be 2 hours rather than 1. MySQL returned correct result
> At 1:30, results are correct:
> Impala:
> {code}
> Query: select from_utc_timestamp('2016-10-30 01:30:00','CET')
> +--+
> | from_utc_timestamp('2016-10-30 01:30:00', 'cet') |
> +--+
> | 2016-10-30 02:30:00  |
> +--+
> Fetched 1 row(s) in 0.01s
> {code}
> Hive:
> {code}
> ++--+
> |  _c0   |
> ++--+
> | 2016-10-30 02:30:00.0  |
> ++--+
> 1 row selected (0.252 seconds)
> {code}
> MySQL:
> {code}
> mysql> SELECT CONVERT_TZ( '2016-10-30 01:30:00', 'UTC', 'CET' );
> +---+
> | CONVERT_TZ( '2016-10-30 01:30:00', 'UTC', 'CET' ) |
> +---+
> | 2016-10-30 02:30:00   |
> +---+
> 1 row in set (0.00 sec)
> {code}
> Seems like a bug.



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[jira] [Commented] (HIVE-14903) from_utc_time function issue for CET daylight savings

2017-07-31 Thread Barna Zsombor Klara (JIRA) 

[ 
https://issues.apache.org/jira/browse/HIVE-14903?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16107383#comment-16107383
 ] 

Barna Zsombor Klara commented on HIVE-14903:


It seems this is already fixed on the master branch:

{code}
select from_utc_timestamp('2016-10-30 00:30:00','CET');
++
|  _c0   |
++
| 2016-10-30 02:30:00.0  |
++
{code}

If that is the case and you can confirm then please resolve the Jira?

> from_utc_time function issue for CET daylight savings
> -
>
> Key: HIVE-14903
> URL: https://issues.apache.org/jira/browse/HIVE-14903
> Project: Hive
>  Issue Type: Bug
>  Components: Beeline
>Affects Versions: 2.0.1
>Reporter: Eric Lin
>Priority: Minor
>
> Based on https://en.wikipedia.org/wiki/Central_European_Summer_Time, the 
> summer time is between 1:00 UTC on the last Sunday of March and 1:00 on the 
> last Sunday of October, see test case below:
> Impala:
> {code}
> select from_utc_timestamp('2016-10-30 00:30:00','CET');
> Query: select from_utc_timestamp('2016-10-30 00:30:00','CET')
> +--+
> | from_utc_timestamp('2016-10-30 00:30:00', 'cet') |
> +--+
> | 2016-10-30 01:30:00  |
> +--+
> {code}
> Hive:
> {code}
> select from_utc_timestamp('2016-10-30 00:30:00','CET');
> INFO  : OK
> ++--+
> |  _c0   |
> ++--+
> | 2016-10-30 01:30:00.0  |
> ++--+
> {code}
> MySQL:
> {code}
> mysql> SELECT CONVERT_TZ( '2016-10-30 00:30:00', 'UTC', 'CET' );
> +---+
> | CONVERT_TZ( '2016-10-30 00:30:00', 'UTC', 'CET' ) |
> +---+
> | 2016-10-30 02:30:00   |
> +---+
> {code}
> At 00:30AM UTC, the daylight saving has not finished so the time different 
> should still be 2 hours rather than 1. MySQL returned correct result
> At 1:30, results are correct:
> Impala:
> {code}
> Query: select from_utc_timestamp('2016-10-30 01:30:00','CET')
> +--+
> | from_utc_timestamp('2016-10-30 01:30:00', 'cet') |
> +--+
> | 2016-10-30 02:30:00  |
> +--+
> Fetched 1 row(s) in 0.01s
> {code}
> Hive:
> {code}
> ++--+
> |  _c0   |
> ++--+
> | 2016-10-30 02:30:00.0  |
> ++--+
> 1 row selected (0.252 seconds)
> {code}
> MySQL:
> {code}
> mysql> SELECT CONVERT_TZ( '2016-10-30 01:30:00', 'UTC', 'CET' );
> +---+
> | CONVERT_TZ( '2016-10-30 01:30:00', 'UTC', 'CET' ) |
> +---+
> | 2016-10-30 02:30:00   |
> +---+
> 1 row in set (0.00 sec)
> {code}
> Seems like a bug.



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[jira] [Commented] (HIVE-14903) from_utc_time function issue for CET daylight savings

2016-10-06 Thread Eric Lin (JIRA) 

[ 
https://issues.apache.org/jira/browse/HIVE-14903?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15551569#comment-15551569
 ] 

Eric Lin commented on HIVE-14903:
-

Both Hive and Impala seem to have the issue, so also created 
https://issues.cloudera.org/browse/IMPALA-4250

> from_utc_time function issue for CET daylight savings
> -
>
> Key: HIVE-14903
> URL: https://issues.apache.org/jira/browse/HIVE-14903
> Project: Hive
>  Issue Type: Bug
>  Components: Beeline
>Affects Versions: 2.0.1
>Reporter: Eric Lin
>Priority: Minor
>
> Based on https://en.wikipedia.org/wiki/Central_European_Summer_Time, the 
> summer time is between 1:00 UTC on the last Sunday of March and 1:00 on the 
> last Sunday of October, see test case below:
> Impala:
> {code}
> select from_utc_timestamp('2016-10-30 00:30:00','CET');
> Query: select from_utc_timestamp('2016-10-30 00:30:00','CET')
> +--+
> | from_utc_timestamp('2016-10-30 00:30:00', 'cet') |
> +--+
> | 2016-10-30 01:30:00  |
> +--+
> {code}
> Hive:
> {code}
> select from_utc_timestamp('2016-10-30 00:30:00','CET');
> INFO  : OK
> ++--+
> |  _c0   |
> ++--+
> | 2016-10-30 01:30:00.0  |
> ++--+
> {code}
> MySQL:
> {code}
> mysql> SELECT CONVERT_TZ( '2016-10-30 00:30:00', 'UTC', 'CET' );
> +---+
> | CONVERT_TZ( '2016-10-30 00:30:00', 'UTC', 'CET' ) |
> +---+
> | 2016-10-30 02:30:00   |
> +---+
> {code}
> At 00:30AM UTC, the daylight saving has not finished so the time different 
> should still be 2 hours rather than 1. MySQL returned correct result
> At 1:30, results are correct:
> Impala:
> {code}
> Query: select from_utc_timestamp('2016-10-30 01:30:00','CET')
> +--+
> | from_utc_timestamp('2016-10-30 01:30:00', 'cet') |
> +--+
> | 2016-10-30 02:30:00  |
> +--+
> Fetched 1 row(s) in 0.01s
> {code}
> Hive:
> {code}
> ++--+
> |  _c0   |
> ++--+
> | 2016-10-30 02:30:00.0  |
> ++--+
> 1 row selected (0.252 seconds)
> {code}
> MySQL:
> {code}
> mysql> SELECT CONVERT_TZ( '2016-10-30 01:30:00', 'UTC', 'CET' );
> +---+
> | CONVERT_TZ( '2016-10-30 01:30:00', 'UTC', 'CET' ) |
> +---+
> | 2016-10-30 02:30:00   |
> +---+
> 1 row in set (0.00 sec)
> {code}
> Seems like a bug.



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