Re: [HACKERS] Re: [QUESTIONS] money or dollar type

Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us> writes:
> I have thought about this. Just bitmask the 16-bits to two 8-bit
> quantities. Give you max 256 length with 256 currencies.

Uh, no: what we were discussing was the total width and decimal place
position of exact numerics. Probably, 255 numeric digits are enough
for practical purposes, so I don't feel an urgent need to make atttypmod
wider for this. But if you want to make it 32 bits, that would
eliminate any concern --- we'd have room for 64k-digit numerics...

If we're going to associate currencies with the money datatype, the
currency needs to be part of the data, not part of the column type.
I need to be able to store amounts of different currencies in the same
column. (Otherwise, a transaction log would need a separate column for
every possible currency, all but one of which would be null in any given
row. Ick.)

regards, tom lane