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https://issues.apache.org/jira/browse/SPARK-16371?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15362299#comment-15362299
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Hyukjin Kwon commented on SPARK-16371:
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Could you narrow down the case with a simpler code and data? I cannot reproduce
this one as well. So, I tried your example and I get {{NameError: global name
'struct' is not defined}}.
> IS NOT NULL clause gives false for nested not empty column
> ----------------------------------------------------------
>
> Key: SPARK-16371
> URL: https://issues.apache.org/jira/browse/SPARK-16371
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.0.0
> Reporter: Maciej Bryński
> Priority: Critical
>
> I have df where column1 is struct type and there is 1M rows.
> (sample data from https://issues.apache.org/jira/browse/SPARK-16320)
> {code}
> df.where("column1 is not null").count()
> {code}
> gives:
> 1M in Spark 1.6
> *0* in Spark 2.0
> Is there a change in IS NOT NULL behaviour in Spark 2.0 ?
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