SORT_RO key [BY pattern] [LIMIT offset count] [GET pattern [GET pattern ...]] [ASC|DESC] [ALPHA]
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).
ACL categories:
@read
@set
@sortedset
@list
@slow
@dangerous
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).
The SORT_RO variant was introduced in order to allow SORT behavior in read-only replicas without breaking compatibility on command flags.
See original SORT for more details.
@examples
SORT_RO mylist BY weight_*->fieldname GET object_*->fieldname
@return
@array-reply: a list of sorted elements.