Module no_shuffle_backfill

Structs

• BackfillExecutor
  An implementation of the RFC: Use Backfill To Let Mv On Mv Stream Again. BackfillExecutor is used to create a materialized view on another materialized view.
• BackfillState
  Schema: | vnode | pk … | backfill_finished | row_count | We can decode that into BackfillState on recovery.