[
https://issues.apache.org/jira/browse/HIVE-25268?focusedWorklogId=614833&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-614833
]
ASF GitHub Bot logged work on HIVE-25268:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 25/Jun/21 04:32
Start Date: 25/Jun/21 04:32
Worklog Time Spent: 10m
Work Description: sankarh commented on a change in pull request #2409:
URL: https://github.com/apache/hive/pull/2409#discussion_r658156023
##########
File path:
ql/src/java/org/apache/hadoop/hive/ql/udf/generic/GenericUDFDateFormat.java
##########
@@ -51,18 +50,17 @@
*/
@Description(name = "date_format", value = "_FUNC_(date/timestamp/string, fmt)
- converts a date/timestamp/string "
+ "to a value of string in the format specified by the date format fmt.",
- extended = "Supported formats are SimpleDateFormat formats - "
- +
"https://docs.oracle.com/javase/7/docs/api/java/text/SimpleDateFormat.html. "
+ extended = "Supported formats are DateTimeFormatter formats - "
+ +
"https://docs.oracle.com/javase/8/docs/api/java/time/format/DateTimeFormatter.html.
"
Review comment:
@zabetak I think, if these 2 are the only difference, then we can go
ahead with DateTimeFormatter. What is your opinion?
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Issue Time Tracking
-------------------
Worklog Id: (was: 614833)
Time Spent: 8h 40m (was: 8.5h)
> date_format udf doesn't work for dates prior to 1900 if the timezone is
> different from UTC
> ------------------------------------------------------------------------------------------
>
> Key: HIVE-25268
> URL: https://issues.apache.org/jira/browse/HIVE-25268
> Project: Hive
> Issue Type: Bug
> Components: UDF
> Affects Versions: 3.1.0, 3.1.1, 3.1.2, 4.0.0
> Reporter: Nikhil Gupta
> Assignee: Nikhil Gupta
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.0.0
>
> Time Spent: 8h 40m
> Remaining Estimate: 0h
>
> *Hive 1.2.1*:
> {code:java}
> select date_format('1400-01-14 01:00:00', 'yyyy-MM-dd HH:mm:ss z');
> +--------------------------+--+
> | _c0 |
> +--------------------------+--+
> | 1400-01-14 01:00:00 ICT |
> +--------------------------+--+
> select date_format('1800-01-14 01:00:00', 'yyyy-MM-dd HH:mm:ss z');
> +--------------------------+--+
> | _c0 |
> +--------------------------+--+
> | 1800-01-14 01:00:00 ICT |
> +--------------------------+--+
> {code}
> *Hive 3.1, Hive 4.0:*
> {code:java}
> select date_format('1400-01-14 01:00:00', 'yyyy-MM-dd HH:mm:ss z');
> +--------------------------+
> | _c0 |
> +--------------------------+
> | 1400-01-06 01:17:56 ICT |
> +--------------------------+
> select date_format('1800-01-14 01:00:00', 'yyyy-MM-dd HH:mm:ss z');
> +--------------------------+
> | _c0 |
> +--------------------------+
> | 1800-01-14 01:17:56 ICT |
> +--------------------------+
> {code}
> VM timezone is set to 'Asia/Bangkok'
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