Hi all, I am planning to submit a PR for https://issues.apache.org/jira/browse/SPARK-8000.
Currently, file format is not detected by the file extension unlike compression codecs are being detected. I am thinking of introducing another interface (a function) at DataSourceRegister just like shortName() at in order to specify possible file exceptions so that we can detect datasources by file extensions just like Hadoop does for compression codecs. Since adding an interface should be carefully done, I want to first ask if this approach looks appropriate. Could you please give me some feedback for this? Thanks!
