PostgreSQL 9.1beta 1 Some domains not being able to be auto cast to their base type - Mailing list pgsql-bugs

In regression testing PostGIS 2.0, our topology module regression tests are
failing in PostgreSQL 9.1 beta.

We have a PostGIS ticket open for it here, but we suspect it's a PostgreSQL
9.1 bug and would like to close it out.
http://trac.osgeo.org/postgis/ticket/980

Our domain type is defined as:

CREATE DOMAIN topoelementarray
  AS integer[][]
   CONSTRAINT dimensions CHECK ((((array_upper(VALUE, 2) IS NOT NULL) AND
(array_upper(VALUE, 2) = 2)) AND (array_upper(VALUE, 3) IS NULL)));

If I try this in PostgreSQL 9.1 beta1:

SELECT array_upper(ARRAY[ARRAY[1,2], ARRAY[3,4]]::topoelementarray,1);

I get error:
function array_upper(topoelementarray, integer) does not exist

In my PostgreSQL 9.0 and 8.4 the above operation works fine.


Thanks,
Regina