[FLINK-29748] Expose the optimize phase in the connector context

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Won't Fix
• Component/s: Table SQL / Planner, Table SQL / Runtime
• Assignee: Unassigned
• Reporter: WenJun Min
• Created: 25/Oct/22 03:30
• Updated: 04/Nov/22 03:32
• Resolved: 04/Nov/22 03:32

Description

Currently, in the connector it can not know whether the whole optimize is finished.
When the optimize finished, the all information is static, eg: the reading partitions. If I want to validate the final optimized result (like whether the reading partition is too much or empty), it needs the context of what is the current phase. I think the ScanContext is ok to expose this information.