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https://issues.apache.org/jira/browse/ARROW-10970?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17332324#comment-17332324
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Andrew Lamb commented on ARROW-10970:
-------------------------------------
Migrated to github: https://github.com/apache/arrow-datafusion/issues/130
> [Rust][DataFusion] Implement Value(Null)
> ----------------------------------------
>
> Key: ARROW-10970
> URL: https://issues.apache.org/jira/browse/ARROW-10970
> Project: Apache Arrow
> Issue Type: Improvement
> Components: Rust - DataFusion
> Reporter: Mike Seddon
> Priority: Major
>
> We need to add support for the NULL value.
> For example:
> ```sql
> SELECT char_length(NULL) AS char_length_null
> ```
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