Prohibit the execution of cross-slot commands in MULTI

[PokIsemaine]

Search before asking

• I had searched in the issues and found no similar issues.

Motivation

I found this issue while trying to support scirpt flag allow-cross-slot-keys
Related discussions in redis:
redis/redis#10503
redis/redis#13140

kvrocks currently does not prohibit cross-slot in MULTI-EXEC. Is there any mechanism to provide protection? If not we should ban it.

Solution

I noticed that there is CanExecByMySelf to make relevant judgments, but it seems to be only suitable for checking whether the slots of multiple keys operated by a single command are the same, but does not detect the situation of multiple commands (such as MULTI-EXEC and scirpt). We may need to track multiple Commands using slots.

Are you willing to submit a PR?

• I'm willing to submit a PR!