Scott Marlowe <scott.marlowe@gmail.com> writes:
> You can either cast the check constraint, or change the field type to
> match double precision.
The short answer here is that 0.00603::double precision and
0.00603::real are unlikely to be exactly the same value, and
which one is greater is a matter of which direction the real
got rounded off in. On my machine the former is a bit larger:
regression=# select 0.00603::double precision - 0.00603::real;
?column?
----------------------
1.85072421797494e-10
(1 row)
but on another platform it could be the other way around.
regards, tom lane
