Returns the remaining time to live in milliseconds of a hash key’s field(s) that have an associated expiration.
HPTTL key
FIELDS numfields field
[field…]
Like HTTL this command returns
the remaining time to live of hash field(s) that has an associated
expiration time, with the sole difference that HTTL returns
the amount of remaining time in seconds while HPTTL returns
it in milliseconds.
See also the HTTL command that
returns the same information with seconds resolution.
Array reply: a list of values associated with the result of getting the remaining time-to-live of the specific fields, in the same order as they are requested.
-2: Field does not exist in the provided hash key, or the hash key is empty.
-1: Field exists in the provided hash key, but has no expiration associated with it.
Integer: The expiration time associated with the hash key field, in milliseconds.
O(N) where N is the number of specified fields.
@fast @hash @read
127.0.0.1:6379> HSET myhash f1 v1 f2 v2 f3 v3
(integer) 3
27.0.0.1:6379> HPEXPIRE myhash 10000 FIELDS 2 f2 f3
1) (integer) 1
2) (integer) 1
127.0.0.1:6379> HPTTL myhash FIELDS 3 f1 f2 f3
1) (integer) -1
2) (integer) 9597
3) (integer) 9597HDEL, HEXISTS, HEXPIRE, HEXPIREAT, HEXPIRETIME, HGET, HGETALL, HGETEX, HINCRBY, HINCRBYFLOAT, HKEYS, HLEN, HMGET, HMSET, HPERSIST, HPEXPIRE, HPEXPIREAT, HPEXPIRETIME, HRANDFIELD, HSCAN, HSET, HSETEX, HSETNX, HSTRLEN, HTTL, HVALS.