> Thanks, but this is not what we expected.  This means
> to change the SQL command in the application.  Our
> understanding from the manual and other relational DBs
> is that, it's suffice for existence of an index on the
> field in the criteria (where clause) to run at optimal
> speed.

You'll probably get more suggestions if you include in your e-mail:

- MySQL version
- table layout
- query (which you did, but just for the record)
- output of explain

Regards, Jigal.



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