BITFIELD_RO key [GET encoding offset [GET encoding offset ...]]
Available since:
Time complexity:
O(1) for each subcommand specified
ACL categories:
@read, @bitmap, @fast,

Read-only variant of the BITFIELD command. It is like the original BITFIELD but only accepts GET subcommand and can safely be used in read-only replicas.

Since the original BITFIELD has SET and INCRBY options 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).

Since Redis 6.2, the BITFIELD_RO variant was introduced in order to allow BITFIELD behavior in read-only replicas without breaking compatibility on command flags.

See original BITFIELD for more details.


BITFIELD_RO hello GET i8 16


Array reply: each entry being the corresponding result of the sub-command given at the same position.
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