1 files changed, 20 insertions, 0 deletions
diff --git a/db/migrate/20220314204009_add_approval_rule_fk_to_deployment_approvals.rb b/db/migrate/20220314204009_add_approval_rule_fk_to_deployment_approvals.rb
new file mode 100644
index 00000000000..ba49103b4d3
--- /dev/null
+++ b/db/migrate/20220314204009_add_approval_rule_fk_to_deployment_approvals.rb
@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+class AddApprovalRuleFkToDeploymentApprovals < Gitlab::Database::Migration[1.0]
+  disable_ddl_transaction!
+
+  INDEX_NAME = 'index_deployment_approvals_on_approval_rule_id'
+
+  def up
+    add_concurrent_index :deployment_approvals, :approval_rule_id, name: INDEX_NAME
+    add_concurrent_foreign_key :deployment_approvals, :protected_environment_approval_rules, column: :approval_rule_id, on_delete: :nullify
+  end
+
+  def down
+    with_lock_retries do
+      remove_foreign_key_if_exists :deployment_approvals, column: :approval_rule_id
+    end
+
+    remove_concurrent_index_by_name :deployment_approvals, INDEX_NAME
+  end
+end