[GitHub] [incubator-superset] willbarrett edited a comment on issue #8737: Migration and model changes to synchronize the data model

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willbarrett edited a comment on issue #8737: Migration and model changes to synchronize the data model
URL: https://github.com/apache/incubator-superset/pull/8737#issuecomment-566746517
 
 
   @john-bodley and @mistercrunch - I've looked closely at the constraint in question, and I can find where it is added to the database (https://github.com/apache/incubator-superset/blob/master/superset/migrations/versions/b4456560d4f3_change_table_unique_constraint.py) but cannot find any migration that removes that constraint. It's possible that it was never applied to your MySQL database, but that constraint does exist in postgres. We have two options here:
   
   1) Add a migration to drop the constraint
   2) Add the constraint to the model
   
   I'm assuming you'd prefer option 1?

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