use bigint for "times_seen" in "groupedmessage"

this field/column may trigger integer overflow.
NB: "times_seen" is indexed field, so issue REINDEX TABLE after changing column type.

Signed-off-by: Konstantin Demin <rockdrilla@gmail.com>

src/sentry/migrations/0749_alter_times_seen_in_groupedmessage.py

@@ -0,0 +1,51 @@
+# Generated by Django 5.0.7 on 2024-08-09 15:00
+
+from django.db import migrations, models
+
+from sentry.new_migrations.migrations import CheckedMigration
+
+
+class Migration(CheckedMigration):
+    # This flag is used to mark that a migration shouldn't be automatically run in production.
+    # This should only be used for operations where it's safe to run the migration after your
+    # code has deployed. So this should not be used for most operations that alter the schema
+    # of a table.
+    # Here are some things that make sense to mark as post deployment:
+    # - Large data migrations. Typically we want these to be run manually so that they can be
+    #   monitored and not block the deploy for a long period of time while they run.
+    # - Adding indexes to large tables. Since this can take a long time, we'd generally prefer to
+    #   run this outside deployments so that we don't block them. Note that while adding an index
+    #   is a schema change, it's completely safe to run the operation after the code has deployed.
+    # Once deployed, run these manually via: https://develop.sentry.dev/database-migrations/#migration-deployment
+
+    is_post_deployment = False
+
+    dependencies = [
+        ("sentry", "0748_alter_score_in_groupedmessage.py"),
+    ]
+
+    operations = [
+        migrations.SeparateDatabaseAndState(
+            database_operations=[
+                migrations.RunSQL(
+                    """
+                    ALTER TABLE "sentry_groupedmessage" ALTER COLUMN "times_seen" TYPE bigint;
+                    REINDEX TABLE "sentry_groupedmessage";
+                    """,
+                    reverse_sql="""
+                    UPDATE "sentry_groupedmessage" SET "times_seen" = 2147483647 WHERE "times_seen" > 2147483647;
+                    ALTER TABLE "sentry_groupedmessage" ALTER COLUMN "times_seen" TYPE int;
+                    REINDEX TABLE "sentry_groupedmessage";
+                    """,
+                    hints={"tables": ["sentry_groupedmessage"]},
+                ),
+            ],
+            state_operations=[
+                migrations.AlterField(
+                    model_name="group",
+                    name="times_seen",
+                    field=models.PositiveBigIntegerField(db_index=True, null=False),
+                ),
+            ],
+        ),
+    ]

src/sentry/models/group.py

@@ -561,7 +561,7 @@ class Group(Model):
             (GroupSubStatus.FOREVER, _("Forever")),
         ),
     )
-    times_seen = BoundedPositiveIntegerField(default=1, db_index=True)
+    times_seen = BoundedPositiveBigIntegerField(default=1, db_index=True)
     last_seen = models.DateTimeField(default=timezone.now, db_index=True)
     first_seen = models.DateTimeField(default=timezone.now, db_index=True)
     first_release = FlexibleForeignKey("sentry.Release", null=True, on_delete=models.PROTECT)