Adding upstream version 1.13.0.upstream/1.13.0

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

1 files changed, 21 insertions, 0 deletions

diff --git a/iredis/data/commands/ssubscribe.md b/iredis/data/commands/ssubscribe.md
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+Subscribes the client to the specified shard channels.
+
+In a Redis cluster, shard channels are assigned to slots by the same algorithm used to assign keys to slots. 
+Client(s) can subscribe to a node covering a slot (primary/replica) to receive the messages published. 
+All the specified shard channels needs to belong to a single slot to subscribe in a given `SSUBSCRIBE` call,
+A client can subscribe to channels across different slots over separate `SSUBSCRIBE` call.
+
+For more information about sharded Pub/Sub, see [Sharded Pub/Sub](/topics/pubsub#sharded-pubsub).
+
+@examples
+
+```
+> ssubscribe orders
+Reading messages... (press Ctrl-C to quit)
+1) "ssubscribe"
+2) "orders"
+3) (integer) 1
+1) "smessage"
+2) "orders"
+3) "hello"
+```