Christopher Kings-Lynne <chriskl(at)familyhealth(dot)com(dot)au> writes:
>> It appears that the optimizer only uses indexes for = clause?
>
> The optimizer will used indexes for LIKE clauses, so long as the
> clause is a prefix search, eg:
>
> SELECT * FROM test WHERE a LIKE 'prf%';
Doesn't this still depend on your locale?
-Doug