chore: create issue fingerprint table in postgres

latest_migrations.manifest

@@ -5,7 +5,7 @@ contenttypes: 0002_remove_content_type_name
 ee: 0016_rolemembership_organization_member
 otp_static: 0002_throttling
 otp_totp: 0002_auto_20190420_0723
-posthog: 0493_insightvariable_values
+posthog: 0494_errortrackingissuefingerprint_and_more
 sessions: 0001_initial
 social_django: 0010_uid_db_index
 two_factor: 0007_auto_20201201_1019

posthog/migrations/0494_errortrackingissuefingerprint_and_more.py

@@ -0,0 +1,33 @@
+# Generated by Django 4.2.15 on 2024-10-18 15:56
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("posthog", "0493_insightvariable_values"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="ErrorTrackingIssueFingerprint",
+            fields=[
+                ("id", models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name="ID")),
+                ("fingerprint", models.CharField(max_length=400)),
+                ("version", models.BigIntegerField(blank=True, null=True)),
+                (
+                    "issue",
+                    models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to="posthog.errortrackinggroup"),
+                ),
+                (
+                    "team",
+                    models.ForeignKey(db_index=False, on_delete=django.db.models.deletion.CASCADE, to="posthog.team"),
+                ),
+            ],
+        ),
+        migrations.AddConstraint(
+            model_name="errortrackingissuefingerprint",
+            constraint=models.UniqueConstraint(fields=("team", "fingerprint"), name="unique fingerprint for team"),
+        ),
+    ]

posthog/models/error_tracking/error_tracking.py

@@ -58,3 +58,15 @@ def convert_fingerprints_to_tuples(fps: list[list[str]]):
         # converting back to list of lists before saving
         self.merged_fingerprints = [list(f) for f in merged_fingerprints]
         self.save()
+
+
+class ErrorTrackingIssueFingerprint(models.Model):
+    team = models.ForeignKey("Team", on_delete=models.CASCADE, db_index=False)
+    issue = models.ForeignKey(ErrorTrackingGroup, on_delete=models.CASCADE)
+    fingerprint = models.CharField(max_length=400)
+
+    # current version of the id, used to sync with ClickHouse and collapse rows correctly for overrides ClickHouse table
+    version = models.BigIntegerField(null=True, blank=True)
+
+    class Meta:
+        constraints = [models.UniqueConstraint(fields=["team", "fingerprint"], name="unique fingerprint for team")]