Added note referencing issue #3 which raised the point that if we use USING for the join then we don't need to prefix key field names in WHERE, FROM and ORDER with the table name
Added note referencing issue #3 which raised the point that if we use USING for the join then we don't need to prefix key field names in WHERE, FROM and ORDER with the table name

duzun/PluSQL,iaindooley/PluSQL