Github user HyukjinKwon commented on the pull request:
https://github.com/apache/spark/pull/13253#issuecomment-221171371
Hi @rxin and @marmbrus,
As you already know a "critical" issue was found here,
[SPARK-15393](https://issues.apache.org/jira/browse/SPARK-15393). So,
[SPARK-10216](https://issues.apache.org/jira/browse/SPARK-10216) was reverted.
It seems writing and reading empty data back were not tested across data
sources. This PR includes the test which resembles the one provided in the JIRA
ticket. Could you please take a look?
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