Jonathan Vanasco <postgres(at)2xlp(dot)com> writes:
> would there be any savings in storage or performance improvements from losing the resolution on fractional seconds,
Storage-wise, no. If you have a resolution spec on your columns now,
I think dropping the resolution spec would save you a few nanoseconds per
row insertion due to not having to apply the roundoff function. Adding
one would certainly not improve speed.
regards, tom lane