[jira] [Updated] (SPARK-38195) Add the TIMESTAMPADD() function

["Max Gekk (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-38195?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Max Gekk updated SPARK-38195:
-----------------------------
    Epic Link: SPARK-38783

> Add the TIMESTAMPADD() function
> -------------------------------
>
>                 Key: SPARK-38195
>                 URL: https://issues.apache.org/jira/browse/SPARK-38195
>             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
>
>
> The function TIMESTAMPADD() is a part of the ODBC api and implemented virtually by ALL other databases are missing in Spark SQL.
> The first argument is an unary interval (HOUR, YEAR, DAY, etc)
> {code:sql}
> TIMESTAMPADD( SECOND, 2 , timestamp '2021-12-12 12:00:00.00') returns 2021-12-12 12:00:02.00
> {code}
> The ODBC syntax requires the interval value to have a prefix of sql_tsi_ while plain sql doesn't. 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]
> * [TIMESTAMPADD function (ODBC compatible)|https://docs.faircom.com/doc/sqlref/33476.htm]



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