ning for since last invocation of this function.</li>
	<li><a href="query_runtime.html">query_runtime()</a>: Number of seconds this query has been running for so far.</li>
	<li><a href="session_unique_id.html">session_unique_id()</a>: Returns an integer unique to this session.</li>
	<li><a href="this_query.html">this_query()</a>: Returns the current query executed by this thread.</li>
	<li><a href="throttle.html">throttle()</a>: Throttle current query by periodically sleeping throughout its execution.</li>
