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https://issues.apache.org/jira/browse/SPARK-23511?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon resolved SPARK-23511.
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Resolution: Incomplete
> Catalyst: Implement GetField
> ----------------------------
>
> Key: SPARK-23511
> URL: https://issues.apache.org/jira/browse/SPARK-23511
> Project: Spark
> Issue Type: New Feature
> Components: SQL
> Affects Versions: 2.2.1
> Reporter: Nadav Samet
> Priority: Major
> Labels: bulk-closed
>
> Similar to Invoke, InvokeStatic and NewInstance, it would be nice to have
> GetStaticField(expression, fieldName).
> My use case is invoking a method on a companion object given the class of the
> companion object itself - it turns out they are not static. I'd like to be
> able to do something like this:
> Invoke(GetStaticField(cls, "MODULE$", ...), "someMethod", ...)
> My workaround is passing the companion to Invoke() directly to
> Literal.fromObject but I think having a general solution to call method on
> companion objects would be better.
>
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