exec = TRUE</code>, returns (invisibly) <code>TRUE</code> if the index was
successfully created.</p>
    </div>
    <div class="section level2">
    <h2 id="see-also">See also<a class="anchor" aria-label="anchor" href="#see-also"></a></h2>
    <div class="dont-index"><p>The PostgreSQL documentation:
<a href="http://www.postgresql.org/docs/current/static/sql-createindex.html" class="external-link">http://www.postgresql.org/docs/current/static/sql-createindex.html</a>;
the PostGIS documentation for GiST index