Fixed test failure on Oracle

        with connection.schema_editor() as editor:

            editor.create_model(Author)

            editor.create_model(BookWithLongName)

        # Ensure the table is there and has the right index

        # Find the properly shortened column name

        column_name = connection.ops.quote_name("author_foreign_key_with_really_long_field_name_id")

        column_name = column_name[1:-1].lower() # unquote, and, for Oracle, un-upcase

        # Ensure the table is there and has an index on the column

        self.assertIn(

            "author_foreign_key_with_really_long_field_name_id",

            column_name,

            connection.introspection.get_indexes(connection.cursor(), BookWithLongName._meta.db_table),

        )