Github user marmbrus commented on the pull request: https://github.com/apache/spark/pull/195#issuecomment-39402465 Hey @AndreSchumacher, This is a pretty cool feature! I think this is close to merging once the comments are addressed. I also made a PR against your PR to fix the testcase problem and roll back the catalog changes. We should probably also update the documentation for Parquet to describe this new functionality and any caveats (i.e., is it going to corrupt data if two people try to write at once?).
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