title: How to do polling in cassandra?
body: <p>I'm trying to find a way to do polling over a cassandra database, but I'm new at this and I don't know how.</p>
  
  <p>Lets say I have a table "users" like this</p>
  
  <pre><code>-&gt; users
      -&gt; user_name
      -&gt; gender
      -&gt; state
  </code></pre>
  
  <p>and I want to do polling constantly so I know if a new user was added to the table. How can I do that?</p>