vu.do ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=5e0db4b... ) *updated* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiNDg4ZDg3NGM2... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-14099?atlOrigin=eyJpIjoiNDg4ZD... ) HHH-14099 ( https://hibernate.atlassian.net/browse/HHH-14099?atlOrigin=eyJpIjoiNDg4ZD... ) Constraint.NO_CONSTRAINT has no effect on @ForeignKey for a @JoinTable or @JoinColumn in @JoinTable ( https://hibernate.atlassian.net/browse/HHH-14099?atlOrigin=eyJpIjoiNDg4ZD... ) Change By: vu.do ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=5e0db4b... ) It is impossible to set Constraint.NO_CONSTRAINT for a @JoinColumn in @JoinTable. It will generate a FK no matter what. Error: Foreign key (FK3io8xbemymxv4bm5ccmh2ba8a:audience_sharing \[audience_group_id,provider_id])) must have same number of columns as the referenced primary key (audience_group \[audience_group_id]) I have tried all workaround but none works. The work arounds which applied the example below: {code:java}@JoinColumn(name = "provider_id", referencedColumnName = "provider_id", foreignKey = @ForeignKey(value = Constraint.NO_CONSTRAINT){code} {noformat}@JoinColumn(name = "provider_id", referencedColumnName = "provider_id", foreignKey = @ForeignKey(name = “none”, value = Constraint.NO_CONSTRAINT){noformat} {noformat}@JoinTable( foreignKey = @ForeignKey(value = Constraint.NO_CONSTRAINT) ){noformat} Example: {code:java}@ManyToMany(fetch = FetchType.LAZY, cascade = {CascadeType.PERSIST, CascadeType.MERGE, CascadeType.REFRESH, CascadeType.DETACH}) @JoinTable( name = "sharing", joinColumns = { @JoinColumn(name = "audience_group_id", referencedColumnName = "audience_group_id"), @JoinColumn(name = "provider_id", referencedColumnName = "provider_id", foreignKey = @ForeignKey(value = Constraint.NO_CONSTRAINT)), }, inverseJoinColumns = @JoinColumn(name = "product_id") ) @JsonManagedReference private Set<Product> products = new HashSet<>(0);{code} ( https://hibernate.atlassian.net/browse/HHH-14099#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-14099#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#100131- sha1:aac02e2 )