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Posted to issues@spark.apache.org by "Yin Huai (JIRA)" <ji...@apache.org> on 2015/05/28 00:10:24 UTC

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

     [ https://issues.apache.org/jira/browse/SPARK-5781?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yin Huai updated SPARK-5781:
----------------------------
    Target Version/s:   (was: 1.4.0)

> 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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