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