Ordering by an ignored column works for ascending, but not descending, because the values are stored as string, and multiplying by -1 for descending turns the values into blanks - next step is to correct that
Ordering by ignore columns works for descending values now. Still need to address this for columns containing actual strings.
Added test for order by clause of ignore column
Another test for order by clause to ensure that ordering is correct
Merge branch 'master' into ignore