Hello!
I've written the SPI procedure which allows to delete large
objects referenced by currently deleted or updated tuples.
I tested it with PostgreSQL v6.3.2 and seem it works.
If PostgreSQL developers team is interested in it, I'll send
the sources to this mailing list or to somebody personally.
Sorry for my English.
Best regards,
Sergey E. Levov (serg@informika.ru)