title: Unable to create unique key constraint in my project
body: <p>My table(<code>tbl_branch_type</code>) exists in my database. Every other column is there, but I receive this error:</p>
  
  <pre><code>org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [com/example/local/config/LocalDbConfiguration.class]: Invocation of init method failed; nested exception is org.hibernate.AnnotationException: Unable to create unique key constraint (code, bank_type_id) on table tbl_branch_type: database column 'bank_type_id' not found. Make sure that you use the correct column name which depends on the naming strategy in use (it may not be the same as the property name in the entity, especially for relational types)
  </code></pre>
  
  <p>My <code>BranchType</code> entity is:</p>
  
  <pre><code>@Entity
  @Table(
      name = "tbl_branch_type",
      uniqueConstraints = {
        @UniqueConstraint(
            name = "uc_branch_type_bank_id_branch_code",
            columnNames = {"code", "bank_type_id"})
      })
  @Cache(usage = CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)
  @Getter
  @Setter
  @EqualsAndHashCode(
      callSuper = true,
      exclude = {"bankType"})
  @ToString(exclude = {"bankType"})
  public class BranchType extends Auditing implements Serializable {
  
    private static final long serialVersionUID = 1L;
  
    @Id
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "seq_branch_type")
    @SequenceGenerator(sequenceName = "seq_branch_type", allocationSize = 1, name = "seq_branch_type")
    private Long id;
  
    @NotNull
    @Size(min = 1, max = 20)
    @Column(name = "code", length = 20, nullable = false)
    private String code;
  
    @NotNull
    @Size(min = 1, max = 100)
    @Column(name = "name", length = 100, nullable = false)
    private String name;
  
    @JsonIgnore
    @ManyToOne
    @JsonIgnoreProperties("")
    private BankType bankType;
  }
  </code></pre>
  
  <p>My <code>LocalDbConfiguration</code> class is:</p>
  
  <pre><code>@Configuration
  @PropertySource({"classpath:application.yml"})
  @EnableJpaRepositories(
      basePackages = {"com.example.local.model.dao", "com.example.local.core.auth.repository"})
  @EnableJpaAuditing(auditorAwareRef = "auditorProvider")
  public class LocalDbConfiguration {
  
    @Primary
    @Bean(name = "dataSource")
    @ConfigurationProperties(prefix = "spring.datasource")
    public DataSource userDataSource() {
      return DataSourceBuilder.create().build();
    }
  
    @Primary
    @Bean(name = "entityManagerFactory")
    public LocalContainerEntityManagerFactoryBean entityManagerFactory(
        EntityManagerFactoryBuilder builder, @Qualifier("dataSource") DataSource dataSource) {
      Map&lt;String, Object&gt; properties = new HashMap&lt;&gt;();
      properties.put("hibernate.hbm2ddl.auto", "update");
      properties.put("database.platform", "org.hibernate.dialect.Oracle10gDialect");
      return builder
          .dataSource(dataSource)
          .packages(
              "com.example.local.model.entity",
              "com.example.local.model.mapper",
              "com.example.local.core.auth.domain")
          .persistenceUnit("localPU")
          .properties(properties)
          .build();
    }
  
    @Primary
    @Bean(name = "transactionManager")
    public PlatformTransactionManager transactionManager(
        @Qualifier("entityManagerFactory") EntityManagerFactory entityManagerFactory) {
      return new JpaTransactionManager(entityManagerFactory);
    }
  
    @Bean
    @Primary
    @ConfigurationProperties("spring.datasource.hikari")
    public HikariConfig defaultHikariConfig() {
      return new HikariConfig();
    }
  
    @Bean
    AuditorAware&lt;Long&gt; auditorProvider() {
      return new AuditorProviderAware();
    }
  }
  </code></pre>