diff --git a/src/main/java/org/gcube/accounting/analytics/persistence/postgresql/Query.java b/src/main/java/org/gcube/accounting/analytics/persistence/postgresql/Query.java
index 891f3dd..3ea4d94 100644
--- a/src/main/java/org/gcube/accounting/analytics/persistence/postgresql/Query.java
+++ b/src/main/java/org/gcube/accounting/analytics/persistence/postgresql/Query.java
@@ -14,6 +14,7 @@ import org.gcube.accounting.analytics.TemporalConstraint.CalendarEnum;
 import org.gcube.accounting.datamodel.UsageRecord;
 import org.gcube.accounting.datamodel.aggregation.AggregatedServiceUsageRecord;
 import org.gcube.accounting.datamodel.aggregation.AggregatedStorageStatusRecord;
+import org.gcube.accounting.datamodel.aggregation.AggregatedStorageUsageRecord;
 import org.gcube.accounting.utility.postgresql.PostgreSQLQuery;
 import org.gcube.accounting.utility.postgresql.RecordToDBFields;
 import org.gcube.accounting.utility.postgresql.RecordToDBMapping;
@@ -185,6 +186,12 @@ public class Query extends PostgreSQLQuery {
 					stringBuffer.append(") AS ");
 					break;
 				
+				case AggregatedStorageUsageRecord.DATA_VOLUME:
+					stringBuffer.append(", SUM(");
+					stringBuffer.append(dbField);
+					stringBuffer.append(") AS ");
+					break;
+					
 				// WEIGHTED AVERAGE
 				case AggregatedServiceUsageRecord.DURATION:
 					stringBuffer.append(", ROUND(SUM(");
diff --git a/src/test/java/org/gcube/accounting/analytics/persistence/postgresql/AccountingPersistenceQueryPostgreSQLTest.java b/src/test/java/org/gcube/accounting/analytics/persistence/postgresql/AccountingPersistenceQueryPostgreSQLTest.java
index 07792a6..c63476d 100644
--- a/src/test/java/org/gcube/accounting/analytics/persistence/postgresql/AccountingPersistenceQueryPostgreSQLTest.java
+++ b/src/test/java/org/gcube/accounting/analytics/persistence/postgresql/AccountingPersistenceQueryPostgreSQLTest.java
@@ -21,6 +21,8 @@ import org.gcube.accounting.analytics.persistence.AccountingPersistenceBackendQu
 import org.gcube.accounting.analytics.persistence.AccountingPersistenceQuery;
 import org.gcube.accounting.datamodel.UsageRecord;
 import org.gcube.accounting.datamodel.aggregation.AggregatedServiceUsageRecord;
+import org.gcube.accounting.datamodel.aggregation.AggregatedStorageStatusRecord;
+import org.gcube.accounting.datamodel.aggregation.AggregatedStorageUsageRecord;
 import org.gcube.accounting.utility.postgresql.RecordToDBMapping;
 import org.gcube.documentstore.records.Record;
 import org.junit.Before;
@@ -98,9 +100,18 @@ public class AccountingPersistenceQueryPostgreSQLTest extends ContextTest {
 			Info info = timeseries.get(c);
 			logger.debug("{}", info);
 		}
+		
+		
+		timeseries = accountingPersistenceQueryPostgreSQL.getTimeSeries(AggregatedStorageUsageRecord.class, temporalConstraint, filters);
+		for(Calendar c : timeseries.keySet()) {
+			Info info = timeseries.get(c);
+			logger.debug("{}", info);
+		}
 	}
 
 
+	
+	
 	@Test
 	public void testContextTimeSeries() throws DuplicatedKeyFilterException, KeyException, ValueException, Exception {
 		Calendar startTimeCalendar = Calendar.getInstance();