The psql manual page mentions lo_insert:
LASTOID The value of the last affected OID, as returned
--> from an INSERT or lo_insert command. This variable is only guaranteed to be valid until
afterthe result of the next SQL command has been displayed.
Should that be lo_import? I don't see lo_insert used anywhere. And it
doesn't seem lo_import sets LASTOID.
-- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB
http://enterprisedb.com
+ It's impossible for everything to be true. +