title: Spark - convert JSON array object to array of string
body: <p>as part of my dataframe, one of the column has data in following manner </p>
  
  <blockquote>
    <p>[{"text":"Tea"},{"text":"GoldenGlobes"}]</p>
  </blockquote>
  
  <p>And I want to convert that as just array of strings. </p>
  
  <blockquote>
    <p>["Tea", "GoldenGlobes"]</p>
  </blockquote>
  
  <p>Would someone please let me know, how to do this? </p>