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https://issues.apache.org/jira/browse/SPARK-34024?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zhenglin luo closed SPARK-34024.
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> datasourceV1 VS dataSourceV2
> ------------------------------
>
> Key: SPARK-34024
> URL: https://issues.apache.org/jira/browse/SPARK-34024
> Project: Spark
> Issue Type: Question
> Components: Input/Output
> Affects Versions: 3.0.0
> Reporter: Zhenglin luo
> Priority: Critical
>
> I found that DataSourceV2 has been through many versions .So why hasn't
> datasourceV2 been used by default until now in the latest version.I want to
> know if it’s because there is a big difference in execution efficiency
> between v1 and v2. Or there are other reasons.
> Thanks a lot
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