Marcos Ribes ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=63b0372... ) *created* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiODg5M2U5OTA0... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-15998?atlOrigin=eyJpIjoiODg5M2... ) HHH-15998 ( https://hibernate.atlassian.net/browse/HHH-15998?atlOrigin=eyJpIjoiODg5M2... ) Incomplete group by expression when with "NEW" operator ( https://hibernate.atlassian.net/browse/HHH-15998?atlOrigin=eyJpIjoiODg5M2... ) Issue Type: Bug Affects Versions: 6.1.6 Assignee: Unassigned Attachments: hibernate-orm-6-test-case.zip Components: hibernate-core Created: 06/Jan/2023 11:49 AM Environment: DB: HSQLDB (HyperSQL DataBase) Priority: Major Reporter: Marcos Ribes ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=63b0372... ) (Check the attached project. *JPAUnitTestCase*.class) This query works: SELECT i, SUM(is.total) FROM ItemSale is JOIN is.item i GROUP BY i This query however fails: SELECT NEW Sumary(i, SUM(is.total)) FROM ItemSale is JOIN is.item i GROUP BY i with “expression not in aggregate or GROUP BY columns: I2_0.ID in statement [select i2_0.id,i2_0.name,sum(i1_0.total) from ItemSale i1_0 join Item i2_0 on i2_0.id=i1_0.item_id group by i1_0.item_id] “. Also fails with others databases servers like Postgresql and Oracle (which is SQL standards). This used to work with 5.6.x branches. ( https://hibernate.atlassian.net/browse/HHH-15998#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-15998#add-comment?atlOrigin=ey... ) Get Jira notifications on your phone! Download the Jira Cloud app for Android ( https://play.google.com/store/apps/details?id=com.atlassian.android.jira.... ) or iOS ( https://itunes.apple.com/app/apple-store/id1006972087?pt=696495&ct=Em... ) This message was sent by Atlassian Jira (v1001.0.0-SNAPSHOT#100213- sha1:f908df2 )