Add index on nodestatushistory

stats-backend/api2/migrations/0026_alter_nodestatushistory_is_online_and_more.py

@@ -0,0 +1,27 @@
+# Generated by Django 4.1.7 on 2024-03-28 14:49
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('api2', '0025_alter_golemtransactions_receiver_and_more'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='nodestatushistory',
+            name='is_online',
+            field=models.BooleanField(db_index=True),
+        ),
+        migrations.AlterField(
+            model_name='nodestatushistory',
+            name='timestamp',
+            field=models.DateTimeField(auto_now_add=True, db_index=True),
+        ),
+        migrations.AddIndex(
+            model_name='nodestatushistory',
+            index=models.Index(fields=['provider', 'timestamp'], name='api2_nodest_provide_64b3a2_idx'),
+        ),
+    ]

stats-backend/api2/models.py

@@ -76,13 +76,19 @@ class GLM(models.Model):
 
 
 class NodeStatusHistory(models.Model):
-    provider = models.ForeignKey(Node, on_delete=models.CASCADE)
-    is_online = models.BooleanField()
-    timestamp = models.DateTimeField(auto_now_add=True)
+    provider = models.ForeignKey(Node, on_delete=models.CASCADE, db_index=True)
+    is_online = models.BooleanField(db_index=True)
+    timestamp = models.DateTimeField(auto_now_add=True, db_index=True)
 
     def __str__(self):
         return f"{self.provider.node_id} - {'Online' if self.is_online else 'Offline'} at {self.timestamp}"
 
+    class Meta:
+        indexes = [
+            models.Index(fields=["provider", "timestamp"]),
+            # This compound index might be useful for queries that filter by provider and sort by timestamp
+        ]
+
 
 class ProviderWithTask(models.Model):
     instance = models.ForeignKey(
@@ -116,7 +122,6 @@ class RelayNodes(models.Model):
     node_id = models.CharField(max_length=42, unique=True)
 
 
-
 class GolemTransactions(models.Model):
     scanner_id = models.IntegerField(primary_key=True)
     txhash = models.CharField(max_length=66, db_index=True)
@@ -142,4 +147,3 @@ class Meta:
 class TransactionScraperIndex(models.Model):
     indexed_before = models.BooleanField(default=False)
     latest_timestamp_indexed = models.DateTimeField(null=True, blank=True)
-