title: Naming strategy of columns in spring boot 2
body: <p>how can I configure spring to using underscore in columns without explicitly defined in <code>@Column</code>? For instance if I have column in entity like this:</p>
  
  <pre><code>@LastModifiedBy
  private String changedBy;
  </code></pre>
  
  <p>I want to map it to physical column in database which is <code>changed_by</code></p>
  
  <p>I tried to configure it with property <code>spring.jpa.hibernate.naming.physical-strategy</code> to <strong>SpringPhysicalNamingStrategy</strong> or <strong>PhysicalNamingStrategyStandardImpl</strong> but I always got exception <code>ERROR: column "changedby" of relation "xxxx" does not exist</code></p>