title: How to use RQL to query rollbar to group by time period?
body: <p>How do I construct an RQL statement that will count errors by, say, day. This gets the number of errors over a seven day period, but how do I count per day?</p>
  <pre><code>SELECT count(*)
  FROM item_occurrence
  WHERE timestamp &gt; unix_timestamp() - 60 * 60 * 24 * 7
  LIMIT 1000
  </code></pre>