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https://issues.apache.org/jira/browse/SPARK-42849?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17702069#comment-17702069
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Apache Spark commented on SPARK-42849:
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User 'srielau' has created a pull request for this issue:
https://github.com/apache/spark/pull/40474

> Session variables
> -----------------
>
>                 Key: SPARK-42849
>                 URL: https://issues.apache.org/jira/browse/SPARK-42849
>             Project: Spark
>          Issue Type: New Feature
>          Components: Spark Core
>    Affects Versions: 3.5.0
>            Reporter: Serge Rielau
>            Priority: Major
>
> Provide a type-safe, engine controlled session variable:
> CREATE [ OR REPLACE } TEMPORARY VARIABLE [ IF NOT EXISTS ]var_name  [ type ][ 
> DEFAULT expresion ]
> SET {  variable = expression | ( variable [, ...] ) = ( subquery | expression 
> [, ...] )
> DROP VARIABLE  [ IF EXISTS ]variable_name



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