Defer db indexing for content id

Signed-off-by: Keshav Priyadarshi <git@keshav.space>

Author: keshav-space

vulnerabilities/migrations/0089_alter_advisory_unique_content_id.py

@@ -1,4 +1,4 @@
-# Generated by Django 4.2.16 on 2025-02-12 13:41
+# Generated by Django 4.2.17 on 2025-02-27 07:47
 
 from django.db import migrations, models
 
@@ -15,7 +15,6 @@ class Migration(migrations.Migration):
             name="unique_content_id",
             field=models.CharField(
                 blank=True,
-                db_index=True,
                 help_text="A 64 character unique identifier for the content of the advisory since we use sha256 as hex",
                 max_length=64,
             ),

vulnerabilities/migrations/0090_alter_advisory_unique_together.py

@@ -1317,7 +1317,6 @@ class Advisory(models.Model):
 
     unique_content_id = models.CharField(
         max_length=64,
-        db_index=True,
         blank=True,
         help_text="A 64 character unique identifier for the content of the advisory since we use sha256 as hex",
     )
@@ -1356,6 +1355,7 @@ class Advisory(models.Model):
     objects = AdvisoryQuerySet.as_manager()
 
     class Meta:
+        unique_together = ["aliases", "unique_content_id", "date_published", "url"]
         ordering = ["aliases", "date_published", "unique_content_id"]
 
     def save(self, *args, **kwargs):