https://docs.djangoproject.com/en/1.11/ref/migration-operations/#alterfield

There are AlterField and RenameField operations available with migrations, 
but you probably have to include them in your custom migrations.  Reason 
being, how would django know that you're just renaming a field and not 
deleting it and adding a new field in its place?  In other words, how would 
django know going from 

text = models.TextField()
to
other_name = models.TextField()

is a rename operation instead of remove and add new column?

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