Mark Papadakis writes:
> Hi all,
>
> I was wondering what's wrong with a query like this:
>
> select itemlist.... , sum(field1), count(*) as cnt from table where where conditions
>group by id having cnt=2 order by field_x, field_y desc limit 10
>
> I am expecting to get the requested rows order by field_x. Those with same value (
>as in field_x=5 ) should be additionaly ordered by field_y. So for example I 'd get:
>
> field_x, field_y
> 5 2
> 5 2
> 5 1
> 5 0
> 4 5
> 3 8
>
> and so on.
>
> Am I missing the point of order by here? If so, what is the best way/fastest way to
>achieve the required results set?
>
> Please, reply directly to me ( [EMAIL PROTECTED] ) if possible.
>
> Thank you,
>
>
>
>
> Mark Papadakis
> R&D Director - Web Division
> Phaistos Networks, S.A. - http://www.phaistosnetworks.gr
> [EMAIL PROTECTED] T:+30-892-23855 F:+30-892-22670
> - A DOL Digital Company
>
>
Hi!
Your problem is quite simple.
Columns not listed in select_list , but used in order by and / or
group by, are silently added to the select_list.
In your case this happens with id field.
This is perfectly in accordance with ANSI SQL standards.
Regards,
Sinisa
____ __ _____ _____ ___ == MySQL AB
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