nt-trigger-definition.html" title="40.1. Overview of Event Trigger Behavior">Section 40.1</a> for the meaning of these
        events.
       </p></dd><dt><span class="term"><code class="structfield">parsetree</code></span></dt><dd><p>
        A pointer to the parse tree of the command.  Check the PostgreSQL
        source code for details.  The parse tree structure is subject to change
        without notice.
       </p></dd><dt><span class="term"><code class="structfield">tag</code></span></dt><dd><p>
 