[MINOR] Make the sink input aware of its plan #7610
Merged
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Which issue does this PR close?
Improves the #7452
Rationale for this change
FileSink can be optimized further even with unbounded sources, so we are making the sink operation aware of its plan's unboundedness.
What changes are included in this PR?
To ensure the accuracy of the plan output, the "is_plan_streaming" method is utilized. This method is then incorporated into the FileSinkConfig to facilitate the process of checking the plan output.
Are these changes tested?
With existing tests.
Are there any user-facing changes?
No.