new_contents: # Generated by Django 3.2.8 on 2021-10-22 13:39
  
  from django.db import migrations, models
  import django.db.models.functions.text
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
          ('bustimes', '0001_squashed_0012_alter_route_revision_number'),
      ]
  
      operations = [
          migrations.AddIndex(
              model_name='route',
              index=models.Index(django.db.models.functions.text.Upper('line_name'), name='route_line_name'),
          ),
      ]
  
subject: add index