title: Big integer field in django models
body: <p>In short: How do you specify a BIGINT in Django models?</p>
  
  <p>In a current project I am doing using Django (0.97-svn release), I've all the integer fields in all the models defined as IntegerField.  It was working immaculately during the development cycle where I was using SQLite for the DB backend. However, as soon as I rolled off to MySQL, I noticed that for one of the IntegerFields, MySQL was truncating data---apparently, for reasons still unknown to me, SQLite didn't complain. I looked at the schema and found out that an IntegerField in Django is represented as an INT(11) field in MySQL. Naturally, the reason MySQL was truncating data was because the data was more than 11-digit in length. To workaround, I had to manually update the column to, in this case, be a BIGINT(20). Django and MySQL coexist peacefully with that. But whenever I reset the application in which rests the model containing that BIGINT, Django again creates it as an INT(11). I've looked at Django docs, and not found anything. Have I overlooked something?</p>
  
  <p>Thanks.</p>