1 files changed, 18 insertions, 0 deletions
diff --git a/db/migrate/20210614143954_add_unique_index_for_helm_packages.rb b/db/migrate/20210614143954_add_unique_index_for_helm_packages.rb
new file mode 100644
index 00000000000..e6b7ba7616d
--- /dev/null
+++ b/db/migrate/20210614143954_add_unique_index_for_helm_packages.rb
@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+class AddUniqueIndexForHelmPackages < ActiveRecord::Migration[6.0]
+  include Gitlab::Database::MigrationHelpers
+
+  INDEX_NAME = 'index_packages_on_project_id_name_version_unique_when_helm'
+  PACKAGE_TYPE_HELM = 11
+
+  disable_ddl_transaction!
+
+  def up
+    add_concurrent_index :packages_packages, [:project_id, :name, :version], unique: true, where: "package_type = #{PACKAGE_TYPE_HELM}", name: INDEX_NAME
+  end
+
+  def down
+    remove_concurrent_index_by_name :packages_packages, INDEX_NAME
+  end
+end