我有这样的防火墙数据结构:如何实现只有名称的ts_app_theme默认?SELECT * FROM ts_app_theme WHERE __key__ HAS ANCESTOR KEY(ts_app_config, '$merchant_key') AND __key__ = KEY(ts_app_theme, 'default')我能做这些
SELECT * FROM ts_app_theme WHERE __key__ HAS ANCESTOR KEY(ts_app_config, '$m