Merge pull request #5903 from thingsboard/feature/nulls-ordering

Nulls ordering improvement for time-series

application/src/main/resources/thingsboard.yml

@@ -504,7 +504,7 @@ spring.servlet.multipart.max-file-size: "50MB"
 spring.servlet.multipart.max-request-size: "50MB"
 
 spring.jpa.properties.hibernate.jdbc.lob.non_contextual_creation: "true"
-spring.jpa.properties.hibernate.order_by.default_null_ordering: "last"
+spring.jpa.properties.hibernate.order_by.default_null_ordering: "${SPRING_JPA_PROPERTIES_HIBERNATE_ORDER_BY_DEFAULT_NULL_ORDERING:last}"
 
 # SQL DAO Configuration
 spring:

dao/src/main/java/org/thingsboard/server/dao/sqlts/AbstractChunkedAggregationTimeseriesDao.java

@@ -140,8 +140,7 @@ public abstract class AbstractChunkedAggregationTimeseriesDao extends AbstractSq
                 query.getStartTs(),
                 query.getEndTs(),
                 PageRequest.of(0, query.getLimit(),
-                        Sort.by(Sort.Direction.fromString(
-                                query.getOrder()), "ts")));
+                        Sort.by(new Sort.Order(Sort.Direction.fromString(query.getOrder()),  "ts").nullsNative())));
         tsKvEntities.forEach(tsKvEntity -> tsKvEntity.setStrKey(query.getKey()));
         return Futures.immediateFuture(DaoUtil.convertDataList(tsKvEntities));
     }

dao/src/main/java/org/thingsboard/server/dao/sqlts/timescale/TimescaleTimeseriesDao.java

@@ -174,8 +174,7 @@ public class TimescaleTimeseriesDao extends AbstractSqlTimeseriesDao implements
                 query.getStartTs(),
                 query.getEndTs(),
                 PageRequest.of(0, query.getLimit(),
-                        Sort.by(Sort.Direction.fromString(
-                                query.getOrder()), "ts")));
+                        Sort.by(new Sort.Order(Sort.Direction.fromString(query.getOrder()),  "ts").nullsNative())));;
         timescaleTsKvEntities.forEach(tsKvEntity -> tsKvEntity.setStrKey(strKey));
         return Futures.immediateFuture(DaoUtil.convertDataList(timescaleTsKvEntities));
     }