Probably you don't have *.table files indicating the current status of the 
database schema. First, without the new column in the code, run a request 
with fake_migrate_all=True, which will create an updated set of *.table 
files. Then add the new column, and the migration should work.

Anthony

On Tuesday, April 3, 2018 at 12:14:30 PM UTC-4, Stephan wrote:
>
> I am getting an "tables already exist" error after adding column to an 
> existing table in db.py  and setting migrate from false to true. It's 
> connected to a mysql. Application is running in version 2.8.2. Is there 
> some cahce to be cleared? thx
>

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