** using the unique index. This is probably OK most of the
** time, since the optimizer would probably choose the
** unique index, anyway. But it would be better if the
** optimizer set the row count properly in this case.
*/
if (currentJoinStrategy.multiplyBaseCostByOuterRows())
{
newCost *= outerCost.rowCount();
}
rowCount *= outerCost.rowCount();