MGETReturn the values of multiple keys (cross-shard gather).
| 構文 | MGET key [key ...] |
| グループ | string |
| 引数の数 | -2 |
| 導入バージョン | 1.0.0 |
| フラグ | readonly |
| 計算量 | O(N) keys, one O(1) probe each on the owning shard |
| Redis 互換性 | differs: keys are grouped by shard and each shard is probed independently, so the reply is not a point-in-time snapshot across shards |