title: Setting SQLAlchemy autoincrement start value
body: <p>The <code>autoincrement</code> argument in SQLAlchemy seems to be only <code>True</code> and <code>False</code>, but I want to set the pre-defined value <code>aid = 1001</code>, the via autoincrement <code>aid = 1002</code> when the next insert is done.</p>
  
  <p>In SQL, can be changed like:</p>
  
  <pre><code>ALTER TABLE article AUTO_INCREMENT = 1001;
  </code></pre>
  
  <p>I'm using <code>MySQL</code> and I have tried following, but it doesn't work:</p>
  
  <pre><code>from sqlalchemy.ext.declarative import declarative_base
  Base = declarative_base()
  class Article(Base):
      __tablename__ = 'article'
      aid = Column(INTEGER(unsigned=True, zerofill=True), 
                  autoincrement=1001, primary_key=True)
  </code></pre>
  
  <p>So, how can I get that? Thanks in advance!</p>