APPENDAppend bytes to a string value; returns the new length.
| 構文 | APPEND key value |
| グループ | string |
| 引数の数 | 3 |
| 導入バージョン | 1.0.0 |
| フラグ | write |
| 計算量 | O(1) amortised while the value is <= 64 B; O(N) per call once it exceeds that (the Arc payload is copied out and re-boxed on every append), so building a large string by repeated APPEND is O(N^2) |
| Redis 互換性 | full |