XREADGROUPRead stream entries as a consumer-group member, optionally blocking.
| 语法 | XREADGROUP GROUP group consumer [COUNT count] [BLOCK milliseconds] [NOACK] STREAMS key [key ...] id [id ...] |
| 分组 | stream |
| 参数个数 | -7 |
| 起始版本 | 1.0.0 |
| 标志 | write, blocking |
| 复杂度 | '>' form: O(log N + M log P) for M entries handed out. History form: O(log P + K log N) for K entries handed back again |
| Redis 兼容性 | full |