Georg Echterling ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) *created* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiNmMyMDgzZDk4... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-16985?atlOrigin=eyJpIjoiNmMyMD... ) HHH-16985 ( https://hibernate.atlassian.net/browse/HHH-16985?atlOrigin=eyJpIjoiNmMyMD... ) Unique keys on unique columns ignore ImplicitNamingStrategy ( https://hibernate.atlassian.net/browse/HHH-16985?atlOrigin=eyJpIjoiNmMyMD... ) Issue Type: Bug Affects Versions: 6.3.0.CR1 Assignee: Unassigned Created: 24/Jul/2023 05:30 AM Priority: Major Reporter: Georg Echterling ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=557058%... ) When using a custom ImplicitNamingStrategy#determineUniqueKeyName , the following mapping only partially applies the intended naming scheme: @Entity @Table( uniqueConstraints = { @UniqueConstraint(columnNames = { "ukColumn1" , "ukColumn2" }) } ) class Parent { @Id Long id; String ukColumn1; String ukColumn2; @Column(unique = true ) String ukAnnotatedColumn; @OneToOne Child child; } The unique key applied via @UniqueConstraint correctly uses ImplicitNamingStrategy#determineUniqueKeyName. The two unique columns ukAnnotatedColumn (via @Column(unique = true) ) and child (via @OneToOne ) still use a hashed key name and ignore the ImplicitNamingStrategy. All unique key names should be consistently generated via ImplicitNamingStrategy#determineUniqueKeyName. Afaict, the unique keys for single unique columns get generated in a different phase from the @UniqueConstraints. When I tried to create a test case for this bug, only the @UniqueConstraint was available via org.hibernate.mapping.Table.getUniqueKeys(). So I don’t know how to create a test case for this issue. ( https://hibernate.atlassian.net/browse/HHH-16985#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16985#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:a133497 )