title: Remove Temporary Tables from Apache SQL Spark
body: <p>I have <code>registertemptable</code> in <code>Apache Spark</code> using <code>Zeppelin</code> below:</p>
  
  <pre><code>val hvacText = sc.textFile("...")
  
  case class Hvac(date: String, time: String, targettemp: Integer, actualtemp: Integer, buildingID: String)
  
  val hvac = hvacText.map(s =&gt; s.split(",")).filter(s =&gt; s(0) != "Date").map(
      s =&gt; Hvac(s(0), 
              s(1),
              s(2).toInt,
              s(3).toInt,
              s(6))).toDF()
  
  hvac.registerTempTable("hvac")
  </code></pre>
  
  <p>After I have done with my queries with this temp table, how do I remove it ?</p>
  
  <p>I checked all docs and it seems I am getting nowhere.</p>
  
  <p>Any guidance ?</p>