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https://issues.apache.org/jira/browse/HIVE-25299?focusedWorklogId=619335&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-619335
]
ASF GitHub Bot logged work on HIVE-25299:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 06/Jul/21 12:45
Start Date: 06/Jul/21 12:45
Worklog Time Spent: 10m
Work Description: ashish-kumar-sharma commented on pull request #2447:
URL: https://github.com/apache/hive/pull/2447#issuecomment-874727428
@adesh-rao Please migrate all this UDF to genericUDF and use timestamp
convertor instead of adding timezone related change in each one. As timestamp
convertor already have everything required for timezone
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Issue Time Tracking
-------------------
Worklog Id: (was: 619335)
Time Spent: 20m (was: 10m)
> Casting timestamp to numeric data types is incorrect for non-UTC timezones
> --------------------------------------------------------------------------
>
> Key: HIVE-25299
> URL: https://issues.apache.org/jira/browse/HIVE-25299
> Project: Hive
> Issue Type: Bug
> Components: UDF
> Affects Versions: 3.1.2, 4.0.0
> Reporter: Adesh Kumar Rao
> Assignee: Adesh Kumar Rao
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.0.0
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> *Hive 1.2.1*
> {noformat}
> Connected to: Apache Hive (version 1.2.1000.2.6.5.3033-1)
> Driver: Hive JDBC (version 1.2.1000.2.6.5.3033-1)
> Transaction isolation: TRANSACTION_REPEATABLE_READ
> Beeline version 1.2.1000.2.6.5.3033-1 by Apache Hive
> 0: jdbc:hive2://zk0-nikhil.ae4yqb3genuuvaozdf> select cast ( cast
> ("2021-03-14 01:00:00" as timestamp) as int);
> +-------------+--+
> | _c0 |
> +-------------+--+
> | 1615658400 |
> +-------------+--+
> 1 row selected (0.387 seconds)
> 0: jdbc:hive2://zk0-nikhil.ae4yqb3genuuvaozdf> select cast ( cast
> ("2021-03-14 01:00:00" as timestamp) as bigint);
> +-------------+--+
> | _c0 |
> +-------------+--+
> | 1615658400 |
> +-------------+--+
> 1 row selected (0.369 seconds)
> 0: jdbc:hive2://zk0-nikhil.ae4yqb3genuuvaozdf> select cast ( cast
> ("2021-03-14 01:00:00" as timestamp) as double);
> +--------------+--+
> | _c0 |
> +--------------+--+
> | 1.6156584E9 |
> +--------------+--+
> {noformat}
> *Hive 3.1, 4.0*
> {noformat}
> Connected to: Apache Hive (version 3.1.0.3.1.6.1-6)
> Driver: Hive JDBC (version 3.1.4.4.1.4.8)
> Transaction isolation: TRANSACTION_REPEATABLE_READ
> Beeline version 3.1.4.4.1.4.8 by Apache Hive
> 0: jdbc:hive2://zk0-nikhil.usmltwlt0ncuxmbost> select cast ( cast
> ("2021-03-14 01:00:00" as timestamp) as int);
> +-------------+
> | _c0 |
> +-------------+
> | 1615683600 |
> +-------------+
> 1 row selected (0.666 seconds)
> 0: jdbc:hive2://zk0-nikhil.usmltwlt0ncuxmbost> select cast ( cast
> ("2021-03-14 01:00:00" as timestamp) as bigint);
> +-------------+
> | _c0 |
> +-------------+
> | 1615683600 |
> +-------------+
> 1 row selected (0.536 seconds)
> 0: jdbc:hive2://zk0-nikhil.usmltwlt0ncuxmbost> select cast ( cast
> ("2021-03-14 01:00:00" as timestamp) as double);
> +--------------+
> | _c0 |
> +--------------+
> | 1.6156836E9 |
> +--------------+
> 1 row selected (0.696 seconds)
> {noformat}
>
> The issue occurs for non-UTC timezone (VM timezone is set to 'Asia/Bangkok').
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