Marco Belladelli ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=637b480... ) *commented* on HHH-16274 ( https://hibernate.atlassian.net/browse/HHH-16274?atlOrigin=eyJpIjoiNWMyYW... ) Re: Incorrect binding @OneToMany with multiple join columns ( https://hibernate.atlassian.net/browse/HHH-16274?atlOrigin=eyJpIjoiNWMyYW... ) Hello Akshaya Gawand ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=6409b5d... ) , thank you very much for the reproducers. Looks like the error in Hibernate 6 is caused by the @Id annotations on the InProcessRefSeqNoId class that is used as @IdClass that cause the foreign key constraint to be generated with a wrong order of columns. Simply removing those annotations, which by the way are not needed since it’s already an @IdClass so they have no effect, should solve your problem. Let me know if that works for you so I can close the issue. ( https://hibernate.atlassian.net/browse/HHH-16274#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16274#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#100219- sha1:0c2c9f2 )