Adding upstream version 1.9.1.upstream/1.9.1

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

1 files changed, 22 insertions, 0 deletions

diff --git a/iredis/data/commands/hincrby.md b/iredis/data/commands/hincrby.md
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+Increments the number stored at `field` in the hash stored at `key` by
+`increment`. If `key` does not exist, a new key holding a hash is created. If
+`field` does not exist the value is set to `0` before the operation is
+performed.
+
+The range of values supported by `HINCRBY` is limited to 64 bit signed integers.
+
+@return
+
+@integer-reply: the value at `field` after the increment operation.
+
+@examples
+
+Since the `increment` argument is signed, both increment and decrement
+operations can be performed:
+
+```cli
+HSET myhash field 5
+HINCRBY myhash field 1
+HINCRBY myhash field -1
+HINCRBY myhash field -10
+```