Subject Re: Order by error in FB 1.5
Author jesus_cointec
And what about date and timestamp error with dialect 1?

Thankds

--- In firebird-support@yahoogroups.com, "Arno Brinkman"
<fbsupport@...> wrote:
>
> Hi,
>
> > I have a database with a lot of stored procs. I have moved from
firebird
> > 1.0x to 1.5 and when i try to recompile some stored procs i get
the error
> > Invalid expression in the ORDER BY clause (not contained in
either an
> > aggregate function or the GROUP BY clause)
>
> > The expression is
>
> > select max(NFIELD)
> > from Table_X
> > where IDTABLEX = :IDTableX
> > order by IDTABLEX, NFIELD
> > into :NField;
>
> > in previous versions i used the order by clause to force index
> > selection, but do i have now to change all the metadata to make
it
> > compatible with 1.5x.
>
> The error is correct, because IDTABLEX isn't a valid field in your
query.
> The ORDER is done after the aggregate-calculation and at that
point there can be more IDTABLEX values for NFIELD.
> With other words such a query in FB1.0 could give you wrong
results.
>
> Regards,
> Arno Brinkman
> ABVisie
>
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