HsetCommand
#sidebar HashCommandsSidebar
HSET _key_ _field_ _value_ (Redis >
1.3.10)= Time complexity: O(1)Set the specified hash field to the specified value.
If key does not exist, a new key holding a hash is created.
If the field already exists, and the HSET just produced an update of thevalue, 0 is returned, otherwise if a new field is created 1 is returned.