Hmm it seems like the sphinx.confs TS is generating always uses "WHERE
`table`.`id` >= $start AND `table`.`id` <= $end AND
`table`.`updated_at` > DATE_SUB(NOW(), INTERVAL ... SECOND)" meaning
it's just using the primary key index and therefore only a 2-part
index on [id, updated_at] would be useful. However, seems like this 2-
part index would be serious overkill... guess no additional indexes
are really necessary for sphinx after all.

On Apr 22, 10:29 pm, Pat Allan <[email protected]> wrote:
> Hi Aaron
>
> I'd definitely put an index on the column if you're sorting or filtering by 
> it (and the SQL statements generated by TS will be doing the latter). Though 
> granted, I'm not a MySQL expert.
>
> Cheers
>
> --
> Pat
>
> On 23/04/2010, at 2:21 AM, agibralter wrote:
>
> > Does it make sense to create mysql indexes for the `updated_at` column
> > if using ts-datetime-delta or the `delta` column if using ts-delayed-
> > delta?
>
> > Thanks,
> > Aaron
>
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