SORT_RO key [BY pattern] [LIMIT offset count] [GET pattern [GET pattern ...]] [ASC | DESC] [ALPHA]
- Available since:
- 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).
- ACL categories:
Read-only variant of the
SORT command. It is exactly like the original
SORT but refuses the
STORE option and can safely be used in read-only replicas.
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.