ZUNIONSTOREStore the union of the given sorted sets into destination.
| Syntax | ZUNIONSTORE destination numkeys key [key ...] [WEIGHTS weight [weight ...]] [AGGREGATE SUM|MIN|MAX] |
| Group | zset |
| Arity | -4 |
| Since | 1.0.0 |
| Flags | write |
| Complexity | O(sum of the source cardinalities + R log R) |
| Redis compatibility | full |