title: QPython Pandas Interaction
body: <p>I have a question pertaining to Pandas Data Frame which I want to enrich with Timings from Tick Source(kdb Table).</p>
  
  <pre><code>Pandas DataFrame
  Date         sym   Level
  2018-07-01   USDJPY    110
  2018-08-01   GBPUSD    1.20
  </code></pre>
  
  <p>I want to enrich this dataframe with timings (first time for a given currency pair for a given date when the level is crossed).</p>
  
  <pre><code>from qpython import qconnection
  from qpython import MetaData
  from qpython.qtype import QKEYED_TABLE
  from qpython.qtype import QSTRING_LIST, QINT_LIST, 
  QDATETIME_LIST,QSYMBOL_LIST
  q.open()
  df.meta = MetaData(sym = QSYMBOL_LIST, val = QINT_LIST, Date = 
  QDATE_LIST)
  q('set', np.string_('tbl'), df)
  </code></pre>
  
  <p>The above code converts pandas dataframe to q table.</p>
  
  <p>Example Code to Access tick data(kdb Tables)</p>
  
  <pre><code>select Mid by sym,date from quotestackevent where date = 2018.07.01, sym = `CCYPAIR
  </code></pre>
  
  <p>How can I use dataframe columns sym and date to pull data from kdb tables using Qpython?</p>