title: How do I get schema / column names from parquet file?
body: <p>I have a file stored in HDFS as <code>part-m-00000.gz.parquet</code></p>
  
  <p>I've tried to run <code>hdfs dfs -text dir/part-m-00000.gz.parquet</code> but it's compressed, so I ran <code>gunzip part-m-00000.gz.parquet</code> but it doesn't uncompress the file since it doesn't recognise the <code>.parquet</code> extension. </p>
  
  <p>How do I get the schema / column names for this file?</p>