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Schema update tries to add 2 times the same Foreign key.
{code:java}
org.hibernate.tool.schema.spi.SchemaManagementException: Unable to execute schema management to JDBC target [alter table step add constraint FKeq3syiydtq52ipcj86hct1d92 foreign key (parent_id) references step]
....
Caused by: org.h2.jdbc.JdbcSQLException: Constraint "FKEQ3SYIYDTQ52IPCJ86HCT1D92" already exists; SQL statement:
alter table step add constraint FKeq3syiydtq52ipcj86hct1d92 foreign key (parent_id) references step
{code}
{code:java}
@Inheritance(strategy = InheritanceType.SINGLE_TABLE)
@DiscriminatorColumn(name = "type")
@Table(name = "step")
@Entity
public abstract class Step implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(unique = true, nullable = false)
protected Integer id;
@ManyToOne
private Step parent;
}
{code}
{code:java}
@DiscriminatorValue("group")
@Entity
public class GroupStep extends Step {
@OneToMany(mappedBy = "parent")
private List<Step> steps;
}
{code}
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