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https://issues.apache.org/jira/browse/SPARK-43322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17724304#comment-17724304
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Sean R. Owen commented on SPARK-43322:
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Can you add examples?

> Spark SQL docs for explode_outer and posexplode_outer omit behavior for 
> null/empty
> ----------------------------------------------------------------------------------
>
>                 Key: SPARK-43322
>                 URL: https://issues.apache.org/jira/browse/SPARK-43322
>             Project: Spark
>          Issue Type: Documentation
>          Components: SQL
>    Affects Versions: 3.4.0
>            Reporter: Robert Juchnicki
>            Priority: Minor
>
> The Spark SQL documentation for 
> [explode_outer|https://spark.apache.org/docs/latest/api/sql/index.html#explode_outer]
>  and 
> [posexplode_outer|[https://spark.apache.org/docs/latest/api/sql/index.html#posexplode_outer|https://spark.apache.org/docs/latest/api/sql/index.html#posexplode_outer)]]
>  omits mentioning that null or empty arrays produce nulls. The descriptions 
> do not appear to be written down in a doc file and are likely pulled from the 
> `ExpressionDescription` tags for the `Explode` and `PosExplode` generators 
> when the `GeneratorOuter` wrapper is used.



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