Implement SQLMetrics for RepartitionExec #397
Description
Is your feature request related to a problem or challenge? Please describe what you are trying to do.
To help debug query performance, I would like to see metrics for RepartitionExec.
Describe the solution you'd like
Show time for executing and fetching batches and time for repartitioning batches separately.
Describe alternatives you've considered
None
Additional context
None