weightUnitPrice field type of ShipmentCostEstimate entity

[Raj Saini]

Hi,

I have a situation where shipping prices for weight breaks increments £1 
per 1000 gm i.e. £ .001 per gram. (gram is UOM for the said product).  
Field type for weightUnitPrice is defined as currency-amount and in 
PostgreSQL it is mapped as numeric(18, 2).  Due to this, shipment cost 
estimate entry I create truncates the price to 0 instead of .001.

I believe this is a common scenario for weight breaks where price 
increments can be very small for a UOM like gram. I have been thinking 
of using the fieldType currency-precision instead of currency-amount. 
Currency precision is mapped as numeric(18,3) in PostgreSQL. Is this the 
right thing to do or there are better alternatives?

Thanks,

Raj