On Fri, 2013-03-29 at 16:30 -0400, D'Arcy J.M. Cain wrote:
> How would this be an issue? If you are assigning a literal to a column
> then that's no issue. Otherwise, a literal is simply a value that can
> be cast depending on the situation. The money type is no different in
> that regard.
>
> As a result of an expression, it will have the type of the data in the
> expression. What if the result is the addition of two columns of
> different precisions? Pick the higher precision? Forbid the
> operation? The latter may make sense. How can you add Yen and US$?
Why not have various rounding functions that do exactly what you want?
Then you can use them anywhere you want in an expression.
Tying a bunch of magic to the column, I/O function, or type system just
seems like the wrong approach when it comes to real differences (like
precision).
Regards,
Jeff Davis