KEYSReturn every key matching the glob pattern (cross-shard gather).
| 構文 | KEYS pattern |
| グループ | scan |
| 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 in the whole keyspace — every shard walks its entire map, plus an O(P*K) glob match per key |
| Redis 互換性 | full |