title: compare metadata of parquet file using pyspark
body: <p>I am using pyspark and have a situation where I need to compare metadata of 2 parquet files.</p>
  
  <p>Example:- </p>
  
  <p>Parquet 1 Schema is :
  1, ID, string
  2, address string
  3, Date, date</p>
  
  <p>Parquet 2 Schema is :
  1, ID, string
  2, Date, date
  3, address string</p>
  
  <p>This should show me a difference, as col 2 moved to col 3 in parquet 2.</p>
  
  <p>Thanks,
  VK</p>