HKEYS key
Available since 2.0.0.
Time complexity: O(N) where N is the size of the hash.
Returns all field names in the hash stored at key
.
*Return value
Array reply: list of fields in the hash, or an empty list when key
does not exist.
*Examples
redis> HSET myhash field1 "Hello"
- (integer) 1
redis> HSET myhash field2 "World"
- (integer) 1
redis> HKEYS myhash
- 1) "field1"
- 2) "field2"