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https://issues.apache.org/jira/browse/SPARK-20017?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiao Li resolved SPARK-20017.
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Resolution: Fixed
Assignee: roncenzhao
Fix Version/s: 2.2.0
2.1.1
> Functions "str_to_map" and "explode" throws NPE exceptioin
> ----------------------------------------------------------
>
> Key: SPARK-20017
> URL: https://issues.apache.org/jira/browse/SPARK-20017
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.1.0
> Reporter: roncenzhao
> Assignee: roncenzhao
> Labels: correctness
> Fix For: 2.1.1, 2.2.0
>
> Attachments: screenshot-1.png
>
>
> ```
> val sqlDf = spark.sql("select k,v from (select str_to_map('') as map_col from
> range(2)) tbl lateral view explode(map_col) as k,v")
> sqlDf.show
> ```
> The sql throws NPE exception.
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