for (int index = 0; index < size; index++)
{
ResultSetNode ft = ((ProjectRestrictNode) elementAt(index)).getChildResult();
if (ft instanceof FromTable)
{
dependencyMap.clear(((FromTable) ft).getTableNumber());
}
}
/* Degenerate case - If flattening a non-correlated EXISTS subquery
* then we need to make the table that is getting flattened dependendent on