title: Is it possible to load parquet table directly from file?
body: <p>If I have a binary data file(it can be converted to csv format), Is there any way to load parquet table directly from it? Many tutorials show loading csv file to text table, and then from text table to parquet table. From efficiency point of view, is it  possible to load parquet table directly from either a binary file like what I already have? Ideally using create external table command. 
  Or I need to convert it to csv file first? Is there any file format restriction? </p>