Before this PR, in cases where there is an alternating distribution of data rowset -> delete rowset -> data rowset -> delete rowset, cumulative compaction would only move the cumulative point forward to allow base compaction to handle the delete rowset. Cumulative compaction itself would not process the data and would return be marked as failure. This would cause the compaction submission task process to pause for 5 seconds, impacting efficiency. This PR modifies the return status to OK for such cases, which improves the efficiency of the compaction submission task.