[jira] [Commented] (SPARK-23627) Provide isEmpty() function in DataSet
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https://issues.apache.org/jira/browse/SPARK-23627?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16394782#comment-16394782
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Apache Spark commented on SPARK-23627:
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User 'goungoun' has created a pull request for this issue:
https://github.com/apache/spark/pull/20800
> Provide isEmpty() function in DataSet
> -
>
> Key: SPARK-23627
> URL: https://issues.apache.org/jira/browse/SPARK-23627
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core, SQL
>Affects Versions: 2.1.0
>Reporter: Goun Na
>Priority: Trivial
>
> Like rdd.isEmpty, adding isEmpty to DataSet would useful.
> Some code without isEmpty:
> {code:java}
> if (df.count = 0) { do_something }{code}
> Some people add limit 1 for a performance reason:
> {code:java}
> if (df.limit(1).rdd.isEmpty) { do_something }
> if (df.rdd.take(1).isEmpty) { do_something }{code}
>
> If isEmpty is provided, the code will be perfect clean:
> {code:java}
> if (df.isEmpty) { do_something }{code}
>
>
>
>
>
>
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>
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[jira] [Commented] (SPARK-23627) Provide isEmpty() function in DataSet
[
https://issues.apache.org/jira/browse/SPARK-23627?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16392468#comment-16392468
]
Apache Spark commented on SPARK-23627:
--
User 'goungoun' has created a pull request for this issue:
https://github.com/apache/spark/pull/20782
> Provide isEmpty() function in DataSet
> -
>
> Key: SPARK-23627
> URL: https://issues.apache.org/jira/browse/SPARK-23627
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core, SQL
>Affects Versions: 2.1.0
>Reporter: Goun Na
>Priority: Trivial
>
> Like rdd.isEmpty, adding isEmpty to DataSet would useful.
> Some code without isEmpty:
> {code:java}
> if (df.count = 0) { do_something }{code}
> Some people add limit 1 for a performance reason:
> {code:java}
> if (df.limit(1).rdd.isEmpty) { do_something }
> if (df.rdd.take(1).isEmpty) { do_something }{code}
>
> If isEmpty is provided, the code will be perfect clean:
> {code:java}
> if (df.isEmpty) { do_something }{code}
>
>
>
>
>
>
>
>
--
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