title: Test of one dataframe in another
body: <p>I have a pyspark dataframe df:</p>
  <pre><code>A    B     C
  E00  FT   AS
  E01  FG   AD
  E02  FF   AB
  E03  FH   AW
  E04  FF   AQ
  E05  FV   AR   
  E06  FD   AE
  </code></pre>
  <p>and another smaller pyspark dataframe but with 3 rows with the same values, df2:</p>
  <pre><code>A    B    C
  Null QW   Null
  QA   Null Null
  E03  FH   AW
  E04  FF   AQ
  E05  FV   AR
  Null Null Null
  </code></pre>
  <p>Is there a way in pyspark to create a third boolean dataframe from the rows in df2 are in df? Such as:</p>
  <pre><code>  A     B      C
  False  False  False
  False  False  False
  False  False  False
  True   True   True
  True   True   True
  True   True   True
  False  False  False
  </code></pre>
  <p>Many thanks in advance.</p>