SMOVE source destination member

Move member from the set at source to the set at destination. This operation is atomic. In every given moment the element will appear to be a member of source or destination for other clients.

If the source set does not exist or does not contain the specified element, no operation is performed and 0 is returned. Otherwise, the element is removed from the source set and added to the destination set. When the specified element already exists in the destination set, it is only removed from the source set.

An error is returned if source or destination does not hold a set value.

@return

@integer-reply, specifically:

  • 1 if the element is moved.
  • 0 if the element is not a member of source and no operation was performed.

@examples

redis> SADD myset "one"
TBD
redis> SADD myset "two"
TBD
redis> SADD myotherset "three"
TBD
redis> SMOVE myset myotherset "two"
TBD
redis> SMEMBERS myset
TBD
redis> SMEMBERS myotherset