现在是否支持 update 语句了?

我刚请求了一个 update 语句，却报错了 { "error": { "root_cause": [ { "type": "null_pointer_exception", "reason": "无法调用 "org.elasticsearch.rest.BaseRestHandler$RestChannelConsumer.accept(Object)"，因为 "action" 为空" } ], "type": "null_pointer_exception", "reason": "无法调用 "org.elasticsearch.rest.BaseRestHandler$RestChannelConsumer.accept(Object)"，因为 "action" 为空" }, "status": 500 }