# File lib/dm-migrations/adapters/dm-do-adapter.rb, line 41
      def field_exists?(storage_name, column_name)
        statement = "SELECT COUNT(*)\nFROM \"information_schema\".\"columns\"\nWHERE \"table_schema\" = ?\nAND \"table_name\" = ?\nAND \"column_name\" = ?\n".compress_lines

        select(statement, schema_name, storage_name, column_name).first > 0
      end