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/zinterstore.md b/iredis/data/commands/zinterstore.md
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+Computes the intersection of `numkeys` sorted sets given by the specified keys,
+and stores the result in `destination`. It is mandatory to provide the number of
+input keys (`numkeys`) before passing the input keys and the other (optional)
+arguments.
+
+By default, the resulting score of an element is the sum of its scores in the
+sorted sets where it exists. Because intersection requires an element to be a
+member of every given sorted set, this results in the score of every element in
+the resulting sorted set to be equal to the number of input sorted sets.
+
+For a description of the `WEIGHTS` and `AGGREGATE` options, see `ZUNIONSTORE`.
+
+If `destination` already exists, it is overwritten.
+
+@return
+
+@integer-reply: the number of elements in the resulting sorted set at
+`destination`.
+
+@examples
+
+```cli
+ZADD zset1 1 "one"
+ZADD zset1 2 "two"
+ZADD zset2 1 "one"
+ZADD zset2 2 "two"
+ZADD zset2 3 "three"
+ZINTERSTORE out 2 zset1 zset2 WEIGHTS 2 3
+ZRANGE out 0 -1 WITHSCORES
+```