title: Can related sequence name be extracted from SQLAlchemy model's column?
body: <p>Let's take simple example SQLAlchemy model:</p>
  
  <pre><code>class Organization(Base):
      __tablename__ = 'organization'
  
      id = Column(Integer, primary_key=True)
      # ... and so on...
  </code></pre>
  
  <p>In this case, when on PostgreSQL, as <code>id</code> is the primary key, this model will result with a sequencer creation, called <code>organization_id_seq</code>.</p>
  
  <p>Is there any possibility to extract somehow this auto-generated sequencer name (or maybe other sequencer details, too) from the field this sequencer was created for (<code>Organization.id</code>) or from <code>Organization</code> class itself? Or maybe the only way is to "manually" check it in the db?</p>
  
  <p>The motivation is not to hardcode the sequencer name in sequencer resetting utility, that with the team we use in some of the tests.</p>