Chris Lenz ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=70121%3... ) *created* an issue Hibernate ORM ( https://hibernate.atlassian.net/browse/HHH?atlOrigin=eyJpIjoiZjNiMWY1MmMz... ) / Bug ( https://hibernate.atlassian.net/browse/HHH-16793?atlOrigin=eyJpIjoiZjNiMW... ) HHH-16793 ( https://hibernate.atlassian.net/browse/HHH-16793?atlOrigin=eyJpIjoiZjNiMW... ) @TableGenerator on MappedSuperclass results in multiple inserts ( https://hibernate.atlassian.net/browse/HHH-16793?atlOrigin=eyJpIjoiZjNiMW... ) Issue Type: Bug Assignee: Unassigned Components: hibernate-orm-modules Created: 14/Jun/2023 03:18 AM Environment: We are using Quarkus Hibernate ORM version 3.0.3 Final. JavaVersion.VERSION_17 database Postgres 14 Priority: Major Reporter: Chris Lenz ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=70121%3... ) We have @MappedSuperclass @TableGenerator(name = "Entity.Sequence", schema="xxx", table = "sequence", initialValue = 1, allocationSize = 100, pkColumnName = "name", pkColumnValue = "id", valueColumnName = "count") public class AbstractEntity implements Serializable{ and @MappedSuperclass public abstract class VersionableEntity extends AbstractEntity and 3 entities like: @Entity ... public class XXX extends VersionableEntity{ The problem we face is that now the SchemaExporter generates one Schema for the Sequence Table, that's ok, but it generates 3 inserts into the table: insert into xxx.sequence(name, count) values ('id',0); insert into xxx.sequence(name, count) values ('id',0); insert into xxx.sequence(name, count) values ('id',0); ( https://hibernate.atlassian.net/browse/HHH-16793#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-16793#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#100226- sha1:c25eebb )