how to programmatically get the index name of a model field on a migration of django 1.8

Hello, I need to delete an index created automatically by Django, from a third-party application and my own django apps, for later I recreate the index optimized way.

this django application is used in several companies.
so I need to distribute these improvements via django migration.

I'm using raw sql in a RunPython migration, to delete and create the optimized index.

in django 1.8, there is a deterministic way to I previously know what the index name is generated for a given model field or django has a python function/method to get this information?

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Fábio C. Barrionuevo da Luz
Palmas - Tocantins - Brasil - América do Sul

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