maria-discuss team mailing list archive

[Justin Swanhart <greenlion@xxxxxxxxx>]

Hi,

You can't use a temp table more than once in a query.

If you could not use table more than once you could not do self join, or
variety of other things:
select * from a A1 join a A2 on A1.child_id A2.id;

--Justin

On Tue, Jun 23, 2015 at 12:17 AM, Benoit Panizzon <benoit.panizzon@xxxxxx>
wrote:

> Hi Kristian
>
> > Maybe try something like this (untested):
> >
> > SELECT *
> >   FROM (SELECT mail_out_anon+mail_out_auth ss, timeslice
> >           FROM domaincounters
> >          WHERE domain_id=19
> >          ORDER BY timeslice desc
> >          LIMIT 24) tmp
> >  ORDER BY ss DESC
> >  LIMIT 1;
>
> Thank you, that is the solution I was looking for.
>
> Justin, you cannot have a subquery on the same table within your query. My
> previous attempt was to return the ID's of the last 24 timeslices in a
> subquery and then MAX() them. But MariaDB prevents this kind of query.
>
> Mit freundlichen Grüssen
>
> Benoit Panizzon
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