title: Split comma separated column data into additional columns
body: <p>I have comma separated data in a column:</p>
  
  <pre class="lang-none prettyprint-override"><code>Column 
  ------- 
  a,b,c,d 
  </code></pre>
  
  <p>I want to split the comma separated data into multiple columns to get this output:</p>
  
  <pre class="lang-none prettyprint-override"><code>Column1  Column2 Column3 Column4 
  -------  ------- ------- -------
  a        b       c       d 
  </code></pre>
  
  <p>How can this be achieved?</p>