Currently ZINCRBY uses SUM to change sorted set member score. It would usefull if aggregators from ZUNIONSTORE could be used. Obvious syntax would be:
ZINCRBY key increment member [WEIGHTS weightExisting weightIncrement] [AGGREGATE SUM|MIN|MAX]
Comment From: enjoy-binbin
Can you describe the use cases? since this is a very old issue, i am closing it, feel free to re-open it