From 09a569aabac7ed2f58d52aaa97f683194dd96814 Mon Sep 17 00:00:00 2001
From: Dan Ungureanu <dan@ungureanu.me>
Date: Wed, 23 Oct 2019 12:27:56 +0300
Subject: [PATCH] PERF: Add unique index oauth2_user_infos(user_id, provider)
 (#8230)

---
 app/models/oauth2_user_info.rb                             | 3 ++-
 db/migrate/20191022155215_add_index_to_oauth2_user_info.rb | 7 +++++++
 2 files changed, 9 insertions(+), 1 deletion(-)
 create mode 100644 db/migrate/20191022155215_add_index_to_oauth2_user_info.rb

diff --git a/app/models/oauth2_user_info.rb b/app/models/oauth2_user_info.rb
index ed9f217caa1..69f35ed731c 100644
--- a/app/models/oauth2_user_info.rb
+++ b/app/models/oauth2_user_info.rb
@@ -20,5 +20,6 @@ end
 #
 # Indexes
 #
-#  index_oauth2_user_infos_on_uid_and_provider  (uid,provider) UNIQUE
+#  index_oauth2_user_infos_on_uid_and_provider      (uid,provider) UNIQUE
+#  index_oauth2_user_infos_on_user_id_and_provider  (user_id,provider) UNIQUE
 #
diff --git a/db/migrate/20191022155215_add_index_to_oauth2_user_info.rb b/db/migrate/20191022155215_add_index_to_oauth2_user_info.rb
new file mode 100644
index 00000000000..dc9093a6c06
--- /dev/null
+++ b/db/migrate/20191022155215_add_index_to_oauth2_user_info.rb
@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+class AddIndexToOauth2UserInfo < ActiveRecord::Migration[6.0]
+  def change
+    add_index :oauth2_user_infos, [:user_id, :provider], unique: true
+  end
+end