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https://issues.apache.org/jira/browse/SPARK-38284?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Max Gekk resolved SPARK-38284.
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Fix Version/s: 3.3.0
Resolution: Fixed
Issue resolved by pull request 35607
[https://github.com/apache/spark/pull/35607]
> Add the TIMESTAMPDIFF() function
> --------------------------------
>
> Key: SPARK-38284
> URL: https://issues.apache.org/jira/browse/SPARK-38284
> Project: Spark
> Issue Type: New Feature
> Components: SQL
> Affects Versions: 3.3.0
> Reporter: Max Gekk
> Assignee: Max Gekk
> Priority: Major
> Fix For: 3.3.0
>
>
> Two functions that are part of the ODBC api and implemented virtually by ALL
> other databases are missing in Spark SQL.
> TIMESTAMPADD() and TIMESTAMPDIFF()
> See
> * [Time, Date, and Interval
> Functions|https://docs.microsoft.com/en-us/sql/odbc/reference/appendixes/time-date-and-interval-functions?view=sql-server-ver15]
> * [TIMESTAMPDIFF function (ODBC
> compatible)|https://docs.faircom.com/doc/sqlref/33477.htm]
> The TIMESTAMPDIFF() function is also VERY convenient and would be a great
> addition because getting the difference between two timestamps in seconds in
> spark today requires converting to unixtimestamp and back.
> {code:sql}
> SELECT TIMESTAMPDIFF(SECOND, '2021-12-30 01:02:00':timestamp, '2021-12-30
> 01:00:00':timestamp)
> >120
> -- Current Support
> SELECT unix_timestamp('2021-12-30 01:00:00':timestamp) -
> unix_timestamp('2021-12-30 01:00:00':timestamp)
> > 120
> {code}
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