1 files changed, 30 insertions, 0 deletions
diff --git a/db/post_migrate/20200917135802_remove_duplicated_cs_findings_without_vulnerability_id.rb b/db/post_migrate/20200917135802_remove_duplicated_cs_findings_without_vulnerability_id.rb
new file mode 100644
index 00000000000..0e161b5de78
--- /dev/null
+++ b/db/post_migrate/20200917135802_remove_duplicated_cs_findings_without_vulnerability_id.rb
@@ -0,0 +1,30 @@
+# frozen_string_literal: true
+
+class RemoveDuplicatedCsFindingsWithoutVulnerabilityId < ActiveRecord::Migration[6.0]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  BATCH_SIZE = 1_000
+
+  INTERVAL = 2.minutes
+
+  # 1_500 records will be deleted
+  def up
+    return unless Gitlab.com?
+
+    migration = Gitlab::BackgroundMigration::RemoveDuplicatedCsFindingsWithoutVulnerabilityId
+    migration_name = migration.to_s.demodulize
+    relation = migration::Finding.container_scanning.with_broken_fingerprint.where(vulnerability_id: nil)
+    queue_background_migration_jobs_by_range_at_intervals(relation,
+                                                            migration_name,
+                                                            INTERVAL,
+                                                            batch_size: BATCH_SIZE)
+  end
+
+  def down
+    # no-op
+  end
+end