a physically separate type. Defining 'lo' as a domain over OID works
just fine and is more efficient. Improve documentation and fix up the
test script. (Would like to turn test script into a proper regression
test, but right now its output is not constant because of numeric OIDs;
plus it makes Unix-specific assumptions about files it can import.)
Create objects in public schema.
Make spacing/capitalization consistent.
Remove transaction block use for object creation.
Remove unneeded function GRANTs.