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https://issues.apache.org/jira/browse/HIVE-21743?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16841650#comment-16841650
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Adarshdeep Cheema commented on HIVE-21743:
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[https://www.tutorialspoint.com/hive/hive_built_in_functions.htm]
This link says
|int|day(string date)|
|It returns the day part of a date or a timestamp string: day("1970-11-01
00:00:00") = 1, day("1970-11-01") = 1|
> day( ) gives wrong day from the date in Apache Hive 3.1 server
> --------------------------------------------------------------
>
> Key: HIVE-21743
> URL: https://issues.apache.org/jira/browse/HIVE-21743
> Project: Hive
> Issue Type: Bug
> Components: Hive
> Affects Versions: 3.0.1
> Environment: Server: Apache Hive 3.1
> Driver hive-jdbc-3.1.0.3.1.0.0-78
> Reporter: Adarshdeep Cheema
> Priority: Critical
>
> Using Apache Hive 3.1 server ////
> Run the following SQL and you will get 3 instead of 1
> SELECT
> (day( DATE '0001-01-01'))
> FROM
> `table`
> PLEASE NOTE THIS DOES NOT HAPPEN WITH Apache HIVE 2.1 SERVER
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