Renzo Schembri ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=712020%... ) *created* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiMzhhZTEwNDE4... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-16906?atlOrigin=eyJpIjoiMzhhZT... ) HHH-16906 ( https://hibernate.atlassian.net/browse/HHH-16906?atlOrigin=eyJpIjoiMzhhZT... ) Duplicate column exception when mapping multiple attributes to the same column in an Embeddable class, irrespective of the insertable and updatable attribute values. ( https://hibernate.atlassian.net/browse/HHH-16906?atlOrigin=eyJpIjoiMzhhZT... ) Issue Type: Bug Affects Versions: 6.1.7 Assignee: Renzo Schembri ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=712020%... ) Components: hibernate-core Created: 06/Jul/2023 07:25 AM Priority: Major Reporter: Renzo Schembri ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=712020%... ) When mapping multiple attributes in an Embeddable class to the same column, the Column insertable and updatable attributes are not considered, and a MappingException is raised stating that “Column X is duplicated in mapping for entity Y (use '@Column(insertable=false, updatable=false)' when mapping multiple properties to the same column)”. I am using Hibernate 6.1.7.Final. A test case was created within the attached pull request which is successful following the solution provided in the same pull request. *Example:* @Entity @Table(name = "PARTICIPANT") public class Participant implements Serializable { private static final long serialVersionUID = 1L; @EmbeddedId private ParticipantId id; public ParticipantId getId() { return id; } public void setId(ParticipantId id) { this.id = id; } } @Embeddable public class ParticipantId implements Serializable { private static final long serialVersionUID = 1L; @Embedded @AttributeOverrides({ @AttributeOverride( name = "registrationIndex", column = @Column(name = "REGISTRATION_INDEX")), @AttributeOverride( name = "registrationDisplay", column = @Column(name = "REGISTRATION_INDEX", insertable=false, updatable=false)), }) private ParticipantRegistration registrationNumber; public ParticipantRegistration getRegistrationNumber() { return registrationNumber; } public void setRegistrationNumber(ParticipantRegistration registrationNumber) { this.registrationNumber = registrationNumber; } } @Embeddable public class ParticipantRegistration implements Serializable { private static final long serialVersionUID = 1L; private String registrationIndex; private String registrationDisplay; public String getRegistrationIndex() { return registrationIndex; } public void setRegistrationIndex(String registrationIndex) { this.registrationIndex = registrationIndex; } public String getRegistrationDisplay() { return registrationDisplay; } public void setRegistrationDisplay(String registrationDisplay) { this.registrationDisplay = registrationDisplay; } } ( https://hibernate.atlassian.net/browse/HHH-16906#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16906#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#100230- sha1:e339e49 )