EXPIRE
Set a key's TTL in seconds (non-positive TTL deletes the key).
EXPIRE key secondsComplexity
O(1)
Complexity and compatibility are read out of kevy's implementation, not copied from Redis's reference. Several genuinely differ.
Redis compatibility
Differs
the NX / XX / GT / LT condition flags are not parsed — arity is fixed at 3, so EXPIRE key seconds NX is a wrong-arity error
See also
DELEXISTSEXPIREATPERSISTPEXPIREPEXPIREATPTTLRENAMERENAMENXTTLTYPEUNLINK