SUNION to get every member that appears in at least one of the given sets.
Duplicates across the sources collapse, since the result is itself a set, and keys that do not exist count as empty sets. The union is computed on each call and nothing is stored; use SUNIONSTORE to keep the result. It answers “or” questions over sets, such as everyone reachable through any of several audiences.
Syntax
Arguments
Response
The reply reports the result of the operation. Error replies have the same shape in RESP2 and RESP3 and are surfaced as exceptions by the SDKs below.Client libraries often decode bulk strings, maps, sets, and numeric strings into language-native values. The table describes the Redis wire reply.
Examples
TCP examples use the TLSREDIS_URL from the Upstash console. REST examples use UPSTASH_REDIS_REST_URL and UPSTASH_REDIS_REST_TOKEN.
Redis CLI
Redis CLI
@upstash/redis
@upstash/redis
upstash_redis
upstash_redis
ioredis
ioredis
node-redis
node-redis
redis-py
redis-py
go-redis
go-redis
jedis
jedis
redis-rs
redis-rs