Creates a key from the serialized representation of a value.
RESTORE key ttl
serialized-value [REPLACE]
[ABSTTL]
[IDLETIME seconds]
[FREQ frequency]
Create a key associated with a value that is obtained by
deserializing the provided serialized value (obtained via
DUMP).
If ttl is 0 the key is created without any expire,
otherwise the specified expire time (in milliseconds) is set.
If the ABSTTL modifier was used, ttl should
represent an absolute Unix timestamp (in
milliseconds) in which the key will expire.
For eviction purposes, you may use the IDLETIME or
FREQ modifiers. See OBJECT for more
information.
RESTORE will return a “Target key name is busy” error
when key already exists unless you use the
REPLACE modifier.
RESTORE checks the RDB version and data checksum. If
they don’t match an error is returned.
Simple string
reply: OK.
O(1) to create the new key and additional O(NM) to reconstruct the serialized value, where N is the number of objects composing the value and M their average size. For small string values the time complexity is thus O(1)+O(1M) where M is small, so simply O(1). However for sorted set values the complexity is O(NMlog(N)) because inserting values into sorted sets is O(log(N)).
@dangerous @keyspace @slow @write
127.0.0.1:6379> DEL mykey
(integer) 0
127.0.0.1:6379> RESTORE mykey 0 "\n\x17\x17\x00\x00\x00\x12\x00\x00\x00\x03\x00\
x00\xc0\x01\x00\x04\xc0\x02\x00\x04\xc0\x03\x00\
xff\x04\x00u#<\xc0;.\xe9\xdd"
OK
127.0.0.1:6379> TYPE mykey
list
127.0.0.1:6379> LRANGE mykey 0 -1
1) "1"
2) "2"
3) "3"REPLACE modifier.ABSTTL modifier.IDLETIME and FREQ
options.COPY, DEL, DUMP, EXISTS, EXPIRE, EXPIREAT, EXPIRETIME, KEYS, MIGRATE, MOVE, OBJECT, OBJECT ENCODING, OBJECT FREQ, OBJECT HELP, OBJECT IDLETIME, OBJECT REFCOUNT, PERSIST, PEXPIRE, PEXPIREAT, PEXPIRETIME, PTTL, RANDOMKEY, RENAME, RENAMENX, SCAN, SORT, SORT_RO, TOUCH, TTL, TYPE, UNLINK, WAIT, WAITAOF.