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https://issues.apache.org/jira/browse/HIVE-25577?focusedWorklogId=658474&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-658474
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ASF GitHub Bot logged work on HIVE-25577:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 30/Sep/21 16:22
Start Date: 30/Sep/21 16:22
Worklog Time Spent: 10m
Work Description: ashish-kumar-sharma commented on a change in pull
request #2686:
URL: https://github.com/apache/hive/pull/2686#discussion_r719568775
##########
File path: ql/src/test/results/clientpositive/llap/udf5.q.out
##########
@@ -342,3 +342,219 @@ POSTHOOK: type: QUERY
POSTHOOK: Input: _dummy_database@_dummy_table
#### A masked pattern was here ####
NULL
+PREHOOK: query: SELECT FROM_UNIXTIME(UNIX_TIMESTAMP('2021-01-02 03:04:05
UTC','yyyy-MM-dd HH:mm:ss z'))
+PREHOOK: type: QUERY
+PREHOOK: Input: _dummy_database@_dummy_table
+#### A masked pattern was here ####
+POSTHOOK: query: SELECT FROM_UNIXTIME(UNIX_TIMESTAMP('2021-01-02 03:04:05
UTC','yyyy-MM-dd HH:mm:ss z'))
+POSTHOOK: type: QUERY
+POSTHOOK: Input: _dummy_database@_dummy_table
+#### A masked pattern was here ####
+2021-01-02 10:04:05
+PREHOOK: query: SELECT FROM_UNIXTIME(UNIX_TIMESTAMP('1400-01-01 00:00:00
UTC','yyyy-MM-dd HH:mm:ss z'))
+PREHOOK: type: QUERY
+PREHOOK: Input: _dummy_database@_dummy_table
+#### A masked pattern was here ####
+POSTHOOK: query: SELECT FROM_UNIXTIME(UNIX_TIMESTAMP('1400-01-01 00:00:00
UTC','yyyy-MM-dd HH:mm:ss z'))
+POSTHOOK: type: QUERY
+POSTHOOK: Input: _dummy_database@_dummy_table
+#### A masked pattern was here ####
+1400-01-01 06:42:04
+PREHOOK: query: SELECT FROM_UNIXTIME(UNIX_TIMESTAMP('1800-01-01 00:00:00
UTC','yyyy-MM-dd HH:mm:ss z'))
+PREHOOK: type: QUERY
+PREHOOK: Input: _dummy_database@_dummy_table
+#### A masked pattern was here ####
+POSTHOOK: query: SELECT FROM_UNIXTIME(UNIX_TIMESTAMP('1800-01-01 00:00:00
UTC','yyyy-MM-dd HH:mm:ss z'))
+POSTHOOK: type: QUERY
+POSTHOOK: Input: _dummy_database@_dummy_table
+#### A masked pattern was here ####
+1800-01-01 06:42:04
+PREHOOK: query: SELECT FROM_UNIXTIME(UNIX_TIMESTAMP('1900-01-01 00:00:00
UTC','yyyy-MM-dd HH:mm:ss z'))
+PREHOOK: type: QUERY
+PREHOOK: Input: _dummy_database@_dummy_table
+#### A masked pattern was here ####
+POSTHOOK: query: SELECT FROM_UNIXTIME(UNIX_TIMESTAMP('1900-01-01 00:00:00
UTC','yyyy-MM-dd HH:mm:ss z'))
+POSTHOOK: type: QUERY
+POSTHOOK: Input: _dummy_database@_dummy_table
+#### A masked pattern was here ####
+1900-01-01 06:42:04
+PREHOOK: query: SELECT FROM_UNIXTIME(UNIX_TIMESTAMP('2000-01-07 00:00:00
UTC','yyyy-MM-dd HH:mm:ss z'))
+PREHOOK: type: QUERY
+PREHOOK: Input: _dummy_database@_dummy_table
+#### A masked pattern was here ####
+POSTHOOK: query: SELECT FROM_UNIXTIME(UNIX_TIMESTAMP('2000-01-07 00:00:00
UTC','yyyy-MM-dd HH:mm:ss z'))
+POSTHOOK: type: QUERY
+POSTHOOK: Input: _dummy_database@_dummy_table
+#### A masked pattern was here ####
+2000-01-07 07:00:00
+PREHOOK: query: SELECT FROM_UNIXTIME(UNIX_TIMESTAMP('0000-00-00 00:00:00
UTC','yyyy-MM-dd HH:mm:ss z'))
+PREHOOK: type: QUERY
+PREHOOK: Input: _dummy_database@_dummy_table
+#### A masked pattern was here ####
+POSTHOOK: query: SELECT FROM_UNIXTIME(UNIX_TIMESTAMP('0000-00-00 00:00:00
UTC','yyyy-MM-dd HH:mm:ss z'))
+POSTHOOK: type: QUERY
+POSTHOOK: Input: _dummy_database@_dummy_table
+#### A masked pattern was here ####
+NULL
+PREHOOK: query: SELECT FROM_UNIXTIME(UNIX_TIMESTAMP('9999-99-99 00:00:00
UTC','yyyy-MM-dd HH:mm:ss z'))
+PREHOOK: type: QUERY
+PREHOOK: Input: _dummy_database@_dummy_table
+#### A masked pattern was here ####
+POSTHOOK: query: SELECT FROM_UNIXTIME(UNIX_TIMESTAMP('9999-99-99 00:00:00
UTC','yyyy-MM-dd HH:mm:ss z'))
+POSTHOOK: type: QUERY
+POSTHOOK: Input: _dummy_database@_dummy_table
+#### A masked pattern was here ####
+NULL
+PREHOOK: query: SELECT FROM_UNIXTIME(UNIX_TIMESTAMP('9999-12-31 00:00:00
UTC','yyyy-MM-dd HH:mm:ss z'))
+PREHOOK: type: QUERY
+PREHOOK: Input: _dummy_database@_dummy_table
+#### A masked pattern was here ####
+POSTHOOK: query: SELECT FROM_UNIXTIME(UNIX_TIMESTAMP('9999-12-31 00:00:00
UTC','yyyy-MM-dd HH:mm:ss z'))
+POSTHOOK: type: QUERY
+POSTHOOK: Input: _dummy_database@_dummy_table
+#### A masked pattern was here ####
+9999-12-31 07:00:00
+PREHOOK: query: SELECT FROM_UNIXTIME(UNIX_TIMESTAMP('2021-01-02 03:04:05
ICT','yyyy-MM-dd HH:mm:ss z'))
+PREHOOK: type: QUERY
+PREHOOK: Input: _dummy_database@_dummy_table
+#### A masked pattern was here ####
+POSTHOOK: query: SELECT FROM_UNIXTIME(UNIX_TIMESTAMP('2021-01-02 03:04:05
ICT','yyyy-MM-dd HH:mm:ss z'))
+POSTHOOK: type: QUERY
+POSTHOOK: Input: _dummy_database@_dummy_table
+#### A masked pattern was here ####
+2021-01-02 03:04:05
+PREHOOK: query: SELECT FROM_UNIXTIME(UNIX_TIMESTAMP('1400-01-01 00:00:00
ICT','yyyy-MM-dd HH:mm:ss z'))
+PREHOOK: type: QUERY
+PREHOOK: Input: _dummy_database@_dummy_table
+#### A masked pattern was here ####
+POSTHOOK: query: SELECT FROM_UNIXTIME(UNIX_TIMESTAMP('1400-01-01 00:00:00
ICT','yyyy-MM-dd HH:mm:ss z'))
+POSTHOOK: type: QUERY
+POSTHOOK: Input: _dummy_database@_dummy_table
+#### A masked pattern was here ####
+1399-12-31 23:35:24
Review comment:
No output will be 1399-12-31 23:35:24 because of following -
1. ICT started in Vietnam with UTC+07:06:40 for date prior to 1906. So
subtracting "1399-12-31 16:53:20 UTC"
2. No Thailand is same period was not part of ICT and have follow
UTC+06:42:04 so not adding this value we will get "1399-12-31 23:35:24"
for more history checkout - https://en.wikipedia.org/wiki/Time_in_Vietnam
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Issue Time Tracking
-------------------
Worklog Id: (was: 658474)
Time Spent: 40m (was: 0.5h)
> unix_timestamp() is ignoring the time zone value
> ------------------------------------------------
>
> Key: HIVE-25577
> URL: https://issues.apache.org/jira/browse/HIVE-25577
> Project: Hive
> Issue Type: Bug
> Reporter: Ashish Sharma
> Assignee: Ashish Sharma
> Priority: Minor
> Labels: pull-request-available
> Time Spent: 40m
> Remaining Estimate: 0h
>
> set hive.local.time.zone=Asia/Bangkok;
> Query - SELECT FROM_UNIXTIME(UNIX_TIMESTAMP('2000-01-07 00:00:00
> GMT','yyyy-MM-dd HH:mm:ss z'));
> Result - 2000-01-07 00:00:00 ICT
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