Benjamin Arai <benjamin@araisoft.com> writes:
> I would prefer not to drop the index because the database is several
> hundred gigs. I would prefer to incrementally add to the index.
This may well be false economy. I don't have numbers at hand, but a
full rebuild can be substantially faster than adding a large number
of rows to the index incrementally. Also, you don't end up with a
physically disordered index, so there is some ongoing performance
benefit.
regards, tom lane