[GitHub] spark pull request: [SPARK-8000][SQL] Support for auto-detecting d...

Thu, 03 Mar 2016 21:08:15 -0800 

Github user HyukjinKwon commented on the pull request:

    https://github.com/apache/spark/pull/11270#issuecomment-192106315
  
    @rxin If you think we should not list up not even once then, should we 
maybe then just detect the source only by given paths without listing up and 
then just leave the `sqlContext.conf.defaultDataSourceName` option?
    
    So, in other words,
    ```bash
    ├── iamjson.json                 # Detect success by the extension of 
`iamjson.json`
    │   ├── part-001
    │   └── part-002
    ├── iamjson                      # Try use 
`sqlContext.conf.defaultDataSourceName` and then
    │   │                            # throw an exception in Parquet-side.
    │   ├── part-001
    │   └── part-002
    ├── iamparquet.parquet           # Detect success by the extension of 
`iamparquet.parquet`
    │   ├── part-001.parquet
    │   └── part-002.parquet
    └── iamparquet                   # Just use 
`sqlContext.conf.defaultDataSourceName`
        ├── part-001.parquet
        └── part-002.parquet
    ```


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