Using a UUID as a primary key in Django models (generic relations impact)

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As seen in the documentation, from Django 1.8 there is a built in UUID field. The performance differences when using a UUID vs integer are negligible.

import uuid
from django.db import models

class MyUUIDModel(models.Model):
    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)

You can also check this answer for more information.

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