>>Hi Fabio,
>>
>>>>>What SYS(3054) said about this SELECT?
>>>>Joining intermediate result and table employee_queue_schedules (Cartesian product)
>>
>>>add
>>>

>>>index ON cTrans_Employees_Queues_fk  IN Employee_Queue_Schedules
>>>

>>I watched vfp creating a temp index often in similar situations where that was helpful, which usually is reflected in the sys(3054)-output. Have you found constellations where this is not the case ? If so, any special pattern to watch out for ?
>>
>>regards
>>
>>thomas
>
>Hi Thomas,
>normally VFP create this temp index.
>
>I remember to have seen cases where VFP uses a Cartesian product with an outer join;
>
>I cannot say because this is not true for the Naomi's select, but it can to be one of these.
>
>The uses of char pk and fk doesn't help because it open many setting conditions
>( codepages, collation, set ansi ... ) and then more bugs can to be present;
>I use integer pk only on local table or cursor.
>
>regards
>
>Fabio

The results are really strange, since we have indexes on all FK/PK. We're using GUID for our PKs. AFAIK all indexes are created with MACHINE collate.