title: Spark - Read csv file with quote
body: <p>I have a CSV file which has data contained in double quotes (").</p>
  
  <blockquote>
    <p>"0001", "A",  "001", "2017/01/01 12" </p>
    
    <p>"0001", "B", "002", "2017/01/01 13"</p>
  </blockquote>
  
  <p>I would like to read only pure data (without " symbol).  </p>
  
  <pre><code>spark.read
   .option("encoding", encoding)
   .option("header", header)
   .option("quote", quote)
   .option("sep", sep)
  </code></pre>
  
  <p>Other options work well, but only quote seems not work properly. It load with quote symbol ("). How should I take this symbol off from loaded data.</p>
  
  <hr>
  
  <p>dataframe.show result</p>
  
  <pre><code>+----+----+------+---------------+
  | _c0| _c1|   _c2|             _c3|
  +----+----+------+---------------+
  |0001| "A"| "001"| "2017/01/01 12"|
  |0001| "B"| "002"| "2017/01/01 13"|
  +----+----+------+---------------+
  </code></pre>