Martin,
OK to push. Please discuss the applicability to 5.0 with Timour. I'd
vote against.
Best Regards,
Joro
On 10.09.2007, at 18:04, mhansson@stripped wrote:
> Below is the list of changes that have just been committed into a
> local
> 5.0 repository of martin. When martin does a push these changes will
> be propagated to the main repository and, within 24 hours after the
> push, to the public repository.
> For information on how to access the public repository
> see http://dev.mysql.com/doc/mysql/en/installing-source-tree.html
>
> ChangeSet@stripped, 2007-09-10 17:04:43+02:00, mhansson@linux-
> st28.site +4 -0
> Bug#18144: Cost with FORCE/USE index seems incorrect in some cases.
>
> Most of the times FORCE INDEX is ignored when the plan would be
> more expensive than
> table scan. In GROUP BY cases, however, it is not, but the cost-
> based optimizer
> used the same cost for performing a table scan by using a non-
> covering index.
>
> Fixed by setting the cost to the same as reading a single range
> the size of the table.
--
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