From 1677561698bc2ca93f8e8d4e85d5e44db1b565f3 Mon Sep 17 00:00:00 2001
From: Ralf Teusner <ralf.teusner@hpi.de>
Date: Tue, 4 Sep 2018 14:54:46 +0200
Subject: [PATCH] add index on lti_parameters to speed up several routes

---
 ...04115948_add_index_for_lti_parameters_external_user_id.rb | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100644 db/migrate/20180904115948_add_index_for_lti_parameters_external_user_id.rb

diff --git a/db/migrate/20180904115948_add_index_for_lti_parameters_external_user_id.rb b/db/migrate/20180904115948_add_index_for_lti_parameters_external_user_id.rb
new file mode 100644
index 00000000..5d0ecd46
--- /dev/null
+++ b/db/migrate/20180904115948_add_index_for_lti_parameters_external_user_id.rb
@@ -0,0 +1,5 @@
+class AddIndexForLtiParametersExternalUserId < ActiveRecord::Migration
+  def change
+    add_index :lti_parameters, :external_users_id
+  end
+end