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https://issues.apache.org/jira/browse/SPARK-12067?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon resolved SPARK-12067.
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Resolution: Incomplete
> Fix usage of isnan, isnull, isnotnull of Column
> -----------------------------------------------
>
> Key: SPARK-12067
> URL: https://issues.apache.org/jira/browse/SPARK-12067
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Yanbo Liang
> Priority: Major
> Labels: bulk-closed
>
> * -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.-
> * Add Column.isNaN to PySpark.
> * Add isnull, notnull, isnan as alias at Python side in order to be
> compatible with pandas.
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