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https://issues.apache.org/jira/browse/SPARK-26291?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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webber updated SPARK-26291:
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Shepherd: Gabor Somogyi
> how to get the number of rows when i write or read use datasourceV2
> -------------------------------------------------------------------
>
> Key: SPARK-26291
> URL: https://issues.apache.org/jira/browse/SPARK-26291
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.4.0
> Reporter: webber
> Priority: Major
> Fix For: 2.4.0
>
>
> how to get the number of rows when i write or read on external data storage
> by java datasourceV2 simplely. Now， when i read from a external data storage
> to show, i get a dataset, i need to do dataset.count to get the number. when
> i write to a external data storage, i need to do writer.save, and then i
> have to do dataset.count to get the number too. How can i count the number In
> the process of writer, but _additional dataset.count_
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