Re: [PATCH] expand the units that pg_size_pretty supports on output

David Christensen <david.christensen@crunchydata.com> writes:
> Enclosed is the patch to change the return type to numeric, as well as one for expanding units to
> add PB and EB.

Can we really get away with changing the return type?  That would
by no stretch of the imagination be free; one could expect breakage
of a few user views, for example.

Independently of that, I'm pretty much -1 on going further than PB.
Even if the additional abbreviations you mention are actually recognized
standards, I think not that many people are familiar with them, and such
input is way more likely to be a typo than intended data.

            regards, tom lane