Proactive server-side statement close when results consumed#1444

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gopalldb wants to merge 9 commits into

databricks:mainfrom

gopalldb:feature/proactive-server-statement-close

Commits on May 12, 2026

Proactive server-side statement close for cost savings
gopalldb
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Add changelog entry for proactive server statement close
gopalldb
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Reword changelog: focus on resource utilization, not cost
gopalldb
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Document invariant: all data fetched before server close
gopalldb
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Guard cancel() and getExecutionResult() for serverOperationClosed
gopalldb
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Only set serverOperationClosed on success, not on RPC failure
gopalldb
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Add additional tests for proactive server close interactions
gopalldb
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Remove proactive close from next() — only close on ResultSet.close()
gopalldb
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Restore proactive close in next() for all types, fix flag reset ordering
gopalldb
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