select sum(deltaSize) from org.alfresco.repo.usage.hibernate.UsageDeltaImpl as usage_delta where usage_delta.node = :node select distinct usage_delta.node from org.alfresco.repo.usage.hibernate.UsageDeltaImpl as usage_delta select usage_delta from org.alfresco.repo.usage.hibernate.UsageDeltaImpl as usage_delta where usage_delta.node = :node