Doug McNaught <doug(at)wireboard(dot)com> writes:
> Do I also need an RI constraint? That's relatively easy to do,
> especially if I'm doing the horrible sed thing.
I don't think an RI constraint would help a lot, since the LO operations
aren't going to check it (eg, lo_unlink won't fire an error). In
general we don't support triggers placed on system catalogs...
regards, tom lane