Yin Huai created SPARK-5781:
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Summary: 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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