title: How to alter the default value of a column in a Sequel migration?
body: <p>I have a user table. I'm trying to change the default Integer value of a column from 0 to 1. </p>
  
  <p>So far, the only method I can come up with is dropping and adding the column with the updated default in a separate migration. But I don't want to have to do this, because that would lose data in pre-existing tables. I haven't been able to find the answer online. </p>
  
  <p>Is there a Sequel way to do this? </p>