Damian S ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=5ba8d59... ) *created* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiZjM0MzZlMjQ1... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-16949?atlOrigin=eyJpIjoiZjM0Mz... ) HHH-16949 ( https://hibernate.atlassian.net/browse/HHH-16949?atlOrigin=eyJpIjoiZjM0Mz... ) QueryException: Parameter 1 of function max() has type COMPARABLE ( https://hibernate.atlassian.net/browse/HHH-16949?atlOrigin=eyJpIjoiZjM0Mz... ) Issue Type: Bug Affects Versions: 6.2.0 Assignee: Unassigned Created: 17/Jul/2023 09:03 AM Environment: Hibernate 6.2.0+ Priority: Major Reporter: Damian S ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=5ba8d59... ) The code is generating a query: select datasourceView.id, max(datasourceView.datasourceStatus) as DATASOURCE_STATUS_helper_column, datasourceView.id as ID_helper_column datasourceStatus is an enum mapped to a text column. @Column(name = "status") @Enumerated(EnumType.STRING) private DatasourceStatus datasourceStatus; As a result I get. org.springframework.dao.InvalidDataAccessApiUsageException: org.hibernate.QueryException: Parameter 1 of function max() has type COMPARABLE, but argument is of type com.xxx.datasource.domain.DatasourceStatus This query was working in Hibernate 6.1.7 (and 5+ versions). It seems it was introduced in 6.2.0 and it is also present it the latest available version. ( https://hibernate.atlassian.net/browse/HHH-16949#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16949#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#100232- sha1:33a7c72 )