ZUNIONSTOREStore the union of the given sorted sets into destination.
| 语法 | ZUNIONSTORE destination numkeys key [key ...] [WEIGHTS weight [weight ...]] [AGGREGATE SUM|MIN|MAX] |
| 分组 | zset |
| 参数个数 | -4 |
| 起始版本 | 1.0.0 |
| 标志 | write |
| 复杂度 | O(sum of the source cardinalities + R log R) |
| Redis 兼容性 | full |