code: def index_column(self, index_name, table, column):
          
          cursor = self.get_cursor()
          try:
              cursor.execute(
                  'CREATE INDEX {0} on {1}({2})'.format(index_name, table, column))
          except sqlite3.OperationalError as error:
              print(error)
              print('Skipping index creation and assuming it exists already')
          else:
              self.conn.commit()
docs: Called by interfaces to index specific column in table