</em> would be a time unit in seconds (e.g. one week
would be 604800).  If <em class="parameter"><code>field</code></em> is an integer comparison, like rating = 60 (i.e.
3 stars), then <em class="parameter"><code>value</code></em> would be the value we care about (e.g. 60), <em class="parameter"><code>date</code></em> would
be 0, and <em class="parameter"><code>units</code></em> would be 1.  Binary AND types are similar, <em class="parameter"><code>value</code></em> is the
important part, with <em class="pa