Hi,

for a certain select-statement IB-Expert shows the plan below:

PLAN JOIN (PRO INDEX (RDB$FOREIGN218), SORT (SORT (SC_COSTS NATURAL)))

If I apend this plan to the statement I get the error below:

There is no alias or table named SC_COSTS at this scope level.

My problem is, that I don't find any name or alias that works within this plan.

Does anybody know how to do this?

Regards,

Josef