SUNIONSTORE

Since 1.1.0Sets

Syntax

SUNIONSTORE destination key [key ...]
  • Flags: write
  • ACL categories: @set, @slow, @write
  • Arity: -3

Stores the union of the given sets at destination, replacing whatever was there, and its expiry. An empty result leaves no key at destination.

Reply

  • The number of members stored.

Examples

> SADD x a b c d
(integer) 4
> SADD y c d e
(integer) 3
> SUNIONSTORE u x y
(integer) 5