Hello all,

I'm using 1.11 and have a migration that is throwing:

django.db.utils.ProgrammingError: constraint 
"inventory_ltmvirtualserver_ltm_id_47dc1635_fk" for relation 
"inventory_ltmvirtualserver" already exists

I'm having troubles figuring this out for a couple reasons.  First, the 
migration scripts ran fine against the development and stage environments 
and only fails in production.  Also, if I export the production database 
and import that copy to the development environment the migration works 
just fine.

The other issue I'm having is that the migration in question 
(inventory.0040_auto_20180104_1225) doesn't actually reference the 
"ltmvirtualserver" model.  I can't figure out why the migration is 
attempting to create this constraint.

The backend database is Postgres.

What information can I provide to help track this down?  Migration 
scripts?  Is there a way to get the precise line in the migration script 
that is being processed when the error is thrown?

Thanks in advance for the help.


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