distinct_retract supports numeric processing

[Sake169]

PR checklist:

• Did you run ClangFormat ?
• Did you separate headers to a different section in existing community code base ?
• Did you surround proton: starts/ends for new code in existing community code base ?

Please write user-readable short description of the changes:
Current the distinct_retract function serialized no matter what the datatype is into string, it is very expensive, now it will just serialize the multiple key into string just like the distinct_streaming.
this should close #519

[CLAassistant]

All committers have signed the CLA.

[jovezhong]

Thank you for contributing this, @Sake169
Let me start the build process, in the meanwhile, we will look into the code

[jovezhong]

The related ticket is #607