Murilo Carlos Cardoso ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=5f2056e... ) *created* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiYTQ3YjExNzU2... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-14123?atlOrigin=eyJpIjoiYTQ3Yj... ) HHH-14123 ( https://hibernate.atlassian.net/browse/HHH-14123?atlOrigin=eyJpIjoiYTQ3Yj... ) @ForeignKey(value = ConstraintMode.NO_CONSTRAINT)) doesn't work ( https://hibernate.atlassian.net/browse/HHH-14123?atlOrigin=eyJpIjoiYTQ3Yj... ) Issue Type: Bug Assignee: Unassigned Components: hibernate-core Created: 28/Jul/2020 10:00 AM Environment: Hibernate version 5.4.18.Final. OpenJDK 11 Linux Mint 19 Postgres Priority: Major Reporter: Murilo Carlos Cardoso ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=5f2056e... ) @JoinColumn(foreignKey = @ForeignKey(value = ConstraintMode.NO_CONSTRAINT)) doesn't work. Example: public class ClassA { @Id private String id; @NotNull private String someProperty; @OneToMany(mappedBy = " classA " ) private Set<ClassB> bs; } public class ClassB { @Id private String id; @NotNull private String someProperty; @ManyToOne @JoinColumn(foreignKey = @ForeignKey(value = ConstraintMode.NO_CONSTRAINT)) private ClassA classA ; } When the application starts it still creates the fks, although I have explicit configure to not. create table class_a (id varchar(255) not null , some_property varchar(255), primary key (id)); create table class_b (id varchar(255) not null , some_property varchar(255), class_a_id varchar(255), primary key (id)); alter table if exists class_b add constraint FKjpk05raxduof60eee8p6khbch foreign key (class_a_id) references class_a application.properties spring.datasource.url=jdbc:postgresql: //localhost:5432/my-spring-data-sample spring.datasource.username=postgres spring.datasource.password=*** spring.jpa.hibernate.ddl-auto=create-drop spring.jpa.generate-ddl= true spring.jpa.show-sql= true spring.jpa.database-platform=org.hibernate.dialect.PostgreSQL95Dialect ( https://hibernate.atlassian.net/browse/HHH-14123#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-14123#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#100140- sha1:454f3ac )