[jira] [Created] (SPARK-16623) Datasources should expose ability to define schema conversions they're performing to save data

["Robert Kruszewski (JIRA)" <ji...@apache.org>]

Robert Kruszewski created SPARK-16623:
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             Summary: Datasources should expose ability to define schema conversions they're performing to save data
                 Key: SPARK-16623
                 URL: https://issues.apache.org/jira/browse/SPARK-16623
             Project: Spark
          Issue Type: New Feature
            Reporter: Robert Kruszewski


See issue on spark avro https://github.com/databricks/spark-avro/issues/142

This should be a first class concept since otherwise the user has no way of knowing that the data is undergoing a conversion on save

JsonFileFormat on the other had will throw exception on unsupported types. It would be preferable to unify and codify the behaviour.



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