title: Remove PostGIS 1.3.3 From Database
body: <p>Trying to upgrade some databases from 8.3 to 9.1.  In the database dumps are a lot of postgis functions like this that reference postgis files</p>
  
  <pre><code>CREATE FUNCTION st_box2d_in(cstring) RETURNS box2d
  AS '/usr/lib/postgresql/8.3/lib/liblwgeom', 'BOX2DFLOAT4_in'
  LANGUAGE c IMMUTABLE STRICT;
  </code></pre>
  
  <p>Is there a utility to uninstall all postgis 1.3.3  column types, functions etc from a database?</p>