fix(models/featureevaluationraw): Add index on crated_at (#4405)

api/app_analytics/migrations/0005_featureevaluationraw_created_at_idx.py

@@ -0,0 +1,33 @@
+# Generated by Django 3.2.25 on 2024-07-29 10:01
+
+from django.db import migrations, models
+
+from core.migration_helpers import PostgresOnlyRunSQL
+
+
+class Migration(migrations.Migration):
+
+    atomic = False
+    dependencies = [
+        ("app_analytics", "0004_apiusageraw_count"),
+    ]
+
+    operations = [
+        migrations.SeparateDatabaseAndState(
+            state_operations=[
+                migrations.AddIndex(
+                    model_name="featureevaluationraw",
+                    index=models.Index(
+                        fields=["created_at"],
+                        name="f_evaluation_created_at_idx",
+                    ),
+                )
+            ],
+            database_operations=[
+                PostgresOnlyRunSQL(
+                    'CREATE INDEX CONCURRENTLY IF NOT EXISTS "f_evaluation_created_at_idx" ON "app_analytics_featureevaluationraw" ("created_at");',
+                    reverse_sql='DROP INDEX CONCURRENTLY IF EXISTS "f_evaluation_created_at_idx"',
+                )
+            ],
+        )
+    ]

api/app_analytics/models.py

@@ -83,6 +83,14 @@ class FeatureEvaluationRaw(models.Model):
     identity_identifier = models.CharField(max_length=2000, null=True, default=None)
     enabled_when_evaluated = models.BooleanField(null=True, default=None)
 
+    class Meta:
+        indexes = [
+            models.Index(
+                fields=["created_at"],
+                name="f_evaluation_created_at_idx",
+            ),
+        ]
+
 
 class FeatureEvaluationBucket(AbstractBucket):
     feature_name = models.CharField(max_length=2000)