Available since: 7.0.0
Time complexity: O(N+M*log(M)) where N is the number of elements in the list or set to sort, and M the number of returned elements. When the elements are not sorted, complexity is O(N).
Since the original
SORT has a
STORE option it is technically flagged as a writing command in the Redis command table. For this reason read-only replicas in a Redis Cluster will redirect it to the master instance even if the connection is in read-only mode (see the
READONLY command of Redis Cluster).
SORT_RO variant was introduced in order to allow
SORT behavior in read-only replicas without breaking compatibility on command flags.
SORT for more details.
SORT_RO mylist BY weight_*->fieldname GET object_*->fieldname
Array reply: a list of sorted elements.