title: using parquet files statistics without reading the files
body: <p>To my understanding parquet files have min/max statistics for columns.
  my question is how to read those stats using python without reading the entire file?</p>
  
  <p>If it helps, I also have <code>_common_metadata</code> and <code>_metadata</code> files.</p>
  
  <hr>
  
  <p>my specific problem is getting the max date for each stock exchange partition in this file system (each year partition contains multiple parquet files that have date column) : </p>
  
  <pre><code>C:.
  │   _common_metadata
  │   _metadata
  ├───source=NASDAQ
  │   ├───year=2017
  │   └───year=2018
  ├───source=London_Stock_Exchange
  │   ├───year=2014
  │   ├───year=2015
  ├───source=Japan_Exchange_Group
  │   ├───year=2017
  │   └───year=2018
  └───source=Euronext
      ├───year=2017
      └───year=2018
  </code></pre>