test_estimation.pl
	test selectivity estimator for the && (overlap) operator

postgis_restore.pl
	restore a spatial database dump to a (possibly updated)
	new spatial database.

postgis_proc_upgrade.pl
	Create a postgis procedures upgrade script. Will warn
	if operations is not cleanly possible due to nature
	of changes in postgis procedures.

profile_intersects.pl
	compares distance()=0 and intersects() timings.