On Thu, 2007-11-29 at 21:22 -0800, Postgres User wrote:
> I have a large function that's doing a number of calcs. The final
> return value is wrong for a simple reason: any division statement
> where the numerator is less than the denominator is returning a zero.
>
> Each of these statements return a 0, even when properly cast:
>
> select 1/100
> select Cast(1 / 100 As decimal)
> select Cast(1 / 100 As numeric(6,2))
>
> How can I write statements that returns a decimal?
>
select (1::numeric/100::numeric)
same as if you do a 1.0/100.0
>
> The problem doesn't appear to be that Postgres won't return decimal
> values, as these statements return the correct value:
>
> select .01
> select Cast(.01 As decimal)
>
> ---------------------------(end of broadcast)---------------------------
> TIP 5: don't forget to increase your free space map settings
---------------------------(end of broadcast)---------------------------
TIP 9: In versions below 8.0, the planner will ignore your desire to
choose an index scan if your joining column's datatypes do not
match
