[1.9.x] Refs #26384, #24995 -- Avoided a module-level MySQL query in the schema tests.

            ['schema_tag_slug_2c418ba3_like', 'schema_tag_slug_key']

        )

    @unittest.skipIf(

        connection.vendor == 'mysql' and connection.mysql_version < (5, 6, 6),

        'Skip known bug renaming primary keys on older MySQL versions (#24995).'

    )

    def test_alter_pk_with_self_referential_field(self):

        """

        Changing the primary key field name of a model with a self-referential

        foreign key (#26384).

        """

        if connection.vendor == 'mysql' and connection.mysql_version < (5, 6, 6):

            self.skipTest('Skip known bug renaming primary keys on older MySQL versions (#24995).')

        old_field = Node._meta.get_field('node_id')

        new_field = AutoField(primary_key=True)

        new_field.set_attributes_from_name('id')