title: psql - how to flush database content without dropping table
body: <p>I have a table in my db called 'mytable'.  I'd like to clear it so that I can continue to collect and analyze 'fresh data' from it.</p>
  
  <p>Something like </p>
  
  <pre><code>conn = psycopg2.connect(database = mydb_name, host = mydb_server, user = mydb_uname, password = mydb_pwd)
  cur = conn.cursor()
  cur.execute("DROP TABLE mytable;")
  </code></pre>
  
  <p>Isn't going to work for me, because as far as I understand it, this destroys the table.  I don't want to destroy/re-create...  Just to flush all data.  </p>
  
  <p>How can I work this out?</p>