Redis
Redis
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dump

DUMP

DUMP key

Available since 2.6.0.

Time complexity: O(1) to access the key and additional O(N*M) to serialized it, where N is the number of Redis objects composing the value and M their average size. For small string values the time complexity is thus O(1)+O(1*M) where M is small, so simply O(1).

Serialize the value stored at key in a Redis-specific format and return it to the user. The returned value can be synthesized back into a Redis key using the RESTORE command.

The serialization format is opaque and non-standard, however it has a few semantic characteristics:

  • It contains a 64-bit checksum that is used to make sure errors will be detected. The RESTORE command makes sure to check the checksum before synthesizing a key using the serialized value.
  • Values