1 files changed, 19 insertions, 0 deletions
diff --git a/db/migrate/20210203223551_add_orphan_index_to_composer_cache_files.rb b/db/migrate/20210203223551_add_orphan_index_to_composer_cache_files.rb
new file mode 100644
index 00000000000..e2853977e5f
--- /dev/null
+++ b/db/migrate/20210203223551_add_orphan_index_to_composer_cache_files.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+class AddOrphanIndexToComposerCacheFiles < ActiveRecord::Migration[6.0]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  INDEX_NAME = 'index_composer_cache_files_where_namespace_id_is_null'
+
+  def up
+    add_concurrent_index :packages_composer_cache_files, :id, name: INDEX_NAME, where: 'namespace_id IS NULL'
+  end
+
+  def down
+    remove_concurrent_index_by_name :packages_composer_cache_files, INDEX_NAME
+  end
+end