ZSCANIterate a sorted set's members and scores (single-batch cursor).
| 構文 | ZSCAN key cursor [MATCH pattern] [COUNT count] |
| グループ | zset |
| 引数の数 | -3 |
| 導入バージョン | 1.0.0 |
| フラグ | readonly |
| 計算量 | O(N) — the whole set is materialised |
| Redis 互換性 | differs: not a cursor iterator — every call returns the whole set with cursor 0, and COUNT is parsed then ignored |