wip: add index of unaccented upper value of role.name

src/authentic2/a2_rbac/models.py

@@ -27,6 +27,7 @@ from django.contrib.postgres.fields import ArrayField
 from django.core.exceptions import ValidationError
 from django.core.validators import MinValueValidator
 from django.db import models
+from django.db.models.functions import Upper
 from django.db.models.query import Prefetch, Q
 from django.urls import reverse
 from django.utils.text import slugify
@@ -614,6 +615,9 @@ class Role(AbstractBase):
                 condition=models.Q(service__isnull=True, ou__isnull=True, admin_scope_ct__isnull=True),
             ),
         ]
+        indexes = [
+            models.Index(Upper(models.Func(models.F('name'), name='immutable_unaccent')), name='name_idx')
+        ]
 
     def natural_key(self):
         return [