"David Johnston" wrote:
>> I think you could test for integer-ness by testing whether val % 0 =
0.
> Modulus is a division function anything "% 0" results in a
division-by-zero
It seems pretty clear that he meant "% 1".
test=# select '1.01'::numeric % 1;
?column?
--
0.01
(1
gt;> Cc: pgsql-hackers
>> Subject: Re: [HACKERS] precision and scale functions for numeric
>>
>>
>> I think you could test for integer-ness by testing whether val % 0 = 0.
>>
>
> Either I am missing something here or you are. Since Modulus is a division
>
> -Original Message-
> From: pgsql-hackers-ow...@postgresql.org [mailto:pgsql-hackers-
> ow...@postgresql.org] On Behalf Of Robert Haas
> Sent: Monday, April 30, 2012 2:20 PM
> To: Peter Eisentraut
> Cc: pgsql-hackers
> Subject: Re: [HACKERS] precision and scale
On Sun, Apr 29, 2012 at 1:51 PM, Peter Eisentraut wrote:
> I didn't find a good way to find out how many digits a numeric value has
> or things like whether a numeric value is an integer. (I had to go
> through bc(1) for the latter.) Functions like precision() and scale()
> would have been quite
I didn't find a good way to find out how many digits a numeric value has
or things like whether a numeric value is an integer. (I had to go
through bc(1) for the latter.) Functions like precision() and scale()
would have been quite handy. Are there other ways to do this, or would
this make a goo
