Adding upstream version 1.9.1.upstream/1.9.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 30 insertions, 0 deletions

diff --git a/iredis/data/commands/dump.md b/iredis/data/commands/dump.md
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+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 are encoded in the same format used by RDB.
+- An RDB version is encoded inside the serialized value, so that different Redis
+  versions with incompatible RDB formats will refuse to process the serialized
+  value.
+
+The serialized value does NOT contain expire information. In order to capture
+the time to live of the current value the `PTTL` command should be used.
+
+If `key` does not exist a nil bulk reply is returned.
+
+@return
+
+@bulk-string-reply: the serialized value.
+
+@examples
+
+```cli
+SET mykey 10
+DUMP mykey
+```