SUNIONSTORE

Syntax
SUNIONSTORE destination key [key ...]
Available since:
1.0.0
Time complexity:
O(N) where N is the total number of elements in all given sets.
ACL categories:
@write, @set, @slow,

This command is equal to SUNION, but instead of returning the resulting set, it is stored in destination.

If destination already exists, it is overwritten.

Examples

SADD key1 "a" SADD key1 "b" SADD key1 "c" SADD key2 "c" SADD key2 "d" SADD key2 "e" SUNIONSTORE key key1 key2 SMEMBERS key

RESP2 Reply

Integer reply: the number of elements in the resulting set.

RESP3 Reply

Integer reply: Number of the elements in the resulting set.
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