1 files changed, 30 insertions, 0 deletions
diff --git a/db/migrate/20190815093936_add_index_notes_on_project_id_and_id_and_system_false.rb b/db/migrate/20190815093936_add_index_notes_on_project_id_and_id_and_system_false.rb
new file mode 100644
index 00000000000..cbbece35901
--- /dev/null
+++ b/db/migrate/20190815093936_add_index_notes_on_project_id_and_id_and_system_false.rb
@@ -0,0 +1,30 @@
+# frozen_string_literal: true
+
+class AddIndexNotesOnProjectIdAndIdAndSystemFalse < ActiveRecord::Migration[5.2]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    add_concurrent_index(*index_arguments)
+  end
+
+  def down
+    remove_concurrent_index(*index_arguments)
+  end
+
+  private
+
+  def index_arguments
+    [
+      :notes,
+      [:project_id, :id],
+      {
+        name: 'index_notes_on_project_id_and_id_and_system_false',
+        where: 'NOT system'
+      }
+    ]
+  end
+end