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Posted to issues@spark.apache.org by "Xiao Li (JIRA)" <ji...@apache.org> on 2016/10/07 22:44:20 UTC

[jira] [Commented] (SPARK-5781) Add metadata files for JSON datasets

    [ https://issues.apache.org/jira/browse/SPARK-5781?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15556480#comment-15556480 ] 

Xiao Li commented on SPARK-5781:
--------------------------------

This sounds already resolved. Let me close it. Thanks!

> Add metadata files for JSON datasets
> ------------------------------------
>
>                 Key: SPARK-5781
>                 URL: https://issues.apache.org/jira/browse/SPARK-5781
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>            Reporter: Yin Huai
>
> If we save a dataset in JSON format (e.g. through DataFrame.save), we should also persist the schema of the table. So, we can avoid inferring the schema when we want to query it in future.



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