Bulk Operation

IMPALA-8656 Add failpoint tests to result spooling code

IMPALA-8656 DCHECK(!closed_) in SpillableRowBatchQueue::IsEmpty

IMPALA-8656 DCHECK(!page->attached_to_output_batch) in SpillableRowBatchQueue::AddBatch

IMPALA-8656 Profile fetch performance when result spooling is enabled

IMPALA-8656 Close ExecNode tree prior to calling FlushFinal in FragmentInstanceState

IMPALA-8656 Impala Doc: Add docs for PLAN_ROOT_SINK and result spooling

IMPALA-8656 Add additional counters to PlanRootSink

IMPALA-8656 BufferedPlanRootSink should handle non-default fetch sizes

IMPALA-8656 Replace deque queue with spillable queue in BufferedPlanRootSink

IMPALA-8656 Coordinator should release admitted memory per-backend rather than per-query

IMPALA-8656 BufferedPlanRootSink should directly write to a QueryResultSet if one is available

IMPALA-8656 Implement a RowBatchQueue backed by a BufferedTupleStream

IMPALA-8656 Add additional tests in test_result_spooling.py and validate cancellation logic

IMPALA-8656 Implementation of BufferedPlanRootSink where FlushFinal blocks until all rows are fetched

IMPALA-8656 Add RowBatchQueue interface with an implementation backed by a std::queue