Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> Conclusions:
> o indexes never get smaller
Which we knew...
> o drop/recreate index is slower than vacuum of indexes
Quite a few people have reported finding the opposite in practice.
You should probably try vacuuming after deleting or updating some
fraction of the rows, rather than just the all or none cases.
regards, tom lane