title: Spark Overwrite to particular partition of parquet files
body: <p>I'm having a huge table consisting of billions(20) of records and my source file as an input is the Target parquet file.</p>
  
  <p>Everyday I get a delta incoming file to update existing records in Target folder and append new data.</p>
  
  <p>Using spark SQL dataframe,  is there a way to read and update particular partitions of the parquet file?</p>