Available since: 2.6.0
Time complexity: O(1)
ACL categories:
@write
@hash
@fast
Increment the specified field
of a hash stored at key
, and representing a
floating point number, by the specified increment
. If the increment value
is negative, the result is to have the hash field value decremented instead of incremented.
If the field does not exist, it is set to 0
before performing the operation.
An error is returned if one of the following conditions occur:
The exact behavior of this command is identical to the one of the INCRBYFLOAT
command, please refer to the documentation of INCRBYFLOAT
for further
information.
Bulk string reply: the value of field
after the increment.
The command is always propagated in the replication link and the Append Only
File as a HSET
operation, so that differences in the underlying floating point
math implementation will not be sources of inconsistency.