James Robinson <jlrobins(at)socialserve(dot)com> writes:
> Is this just a dead end, or is there some variation of this that might
> possibly work, so that ultimately an undoctored literal number, when
> applied to an int8 column, could find an index?
I think it's a dead end. What I was playing with this afternoon was
removing the int8-and-int4 comparison operators from pg_operator.
It works as far as making "int8col = 42" do the right thing, but I'm
not sure yet about side-effects.
regards, tom lane