This is a generic test suite for GiST (7.2):

1. test GiST multi-key indexes
2. test null-safe interface to GiST
  (see proposal http://fts.postgresql.org/db/mw/msg.html?mid=1028327)

USAGE:

Create db and install contrib modules: intarray, rtree_gist, seg, cube.
Edit gen.pl for $pgsqlsrc 
% perl gen.pl > /tmp/data
% psql TESTDB < test.sql
