[Feature Request] Partitioned stream support in Stream framework

[rishabhmaurya]

Is your feature request related to a problem? Please describe

A StreamProducer introduced in #16691 could produce multiple streams as part of one job.

Describe the solution you'd like

we can create something like PartitionedStreamTicket, which will internally contain list of tickets.
Its StreamProducer implementation in java can have a parallel execution of streams when getStream() is called on it.
For getFlightInfo() it can just return List of endpoints, as your POC code.

Related component

Search:Performance

Describe alternatives you've considered

No response

Additional context

No response