Re: Odd sum() problem in 7.2.2

On Friday 04 Oct 2002 11:37 am, Andreas Forsgren wrote:
> I'm stuck. The following two snippets gives me two different results,
> and I can't figure out why;

>    = 5845507 and count(*) [1] gives me: 286109
>    = 5986420 and count(*) [1] gives me: 286304

Nothing changed but different numbers of rows returned? Best look at the where 
clause...

> where (b_nr
>    like '12345678%' and datetime(ss7_rel_timestamp_sec) >=
>    '2002-09-01' and datetime(ss7_rel_timestamp_sec) < '2002-10-01'
>    and session_status_reached >= 20);
>
> where b_nr like '12345678%' and
>    ss7_rel_timestamp_sec >= '2002-09-01' and ss7_rel_timestamp_sec
>    < '2002-10-01' and session_status_reached >= 20;

Hmm - "datetime" - tell me sir, are you in a timezone other than Greenwich and 
if you specify timezones explicitly does the problem go away?

-- 
  Richard Huxton