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https://issues.apache.org/jira/browse/SPARK-12067?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15035496#comment-15035496
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Apache Spark commented on SPARK-12067:
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User 'yanboliang' has created a pull request for this issue:
https://github.com/apache/spark/pull/10097
> Fix usage of isnan, isnull, isnotnull of Column and DataFrame
> -------------------------------------------------------------
>
> Key: SPARK-12067
> URL: https://issues.apache.org/jira/browse/SPARK-12067
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Yanbo Liang
>
> * SPARK-11947 has deprecated DataFrame.isNaN, DataFrame.isNull and replaced
> by DataFrame.isnan, DataFrame.isnull, this PR changed Column.isNaN to
> Column.isnan, Column.isNull to Column.isnull, Column.isNotNull to
> Column.isnotnull.
> * Add Column.notnull as alias of Column.isnotnull following the pandas naming
> convention.
> * Add DataFrame.isnotnull and DataFrame.notnull.
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