installed, you can configure tsearch2 to always use a specific
dictionary.</p>
<pre>
  SELECT set_curdict('en_ispell');
</pre>
<p>Lexize is meant to turn a word into a lexeme. It is possible to
receive more than one lexeme returned for a single word.</p>
<pre>
 SELECT lexize('en_ispell', 'conditionally');
           lexize
        -----------------------------
         {conditionally,conditional}
        (1 row)
</pre>
<p>The lexize function is not meant to take a full string as an
argument to return lexeme