From 149450946855070bc2792dc73ba3ea3392c2f7da Mon Sep 17 00:00:00 2001 From: takayamaki Date: Wed, 27 Dec 2017 01:56:31 +0900 Subject: more faster index on notifications table (#6108) --- db/migrate/20171226094803_more_faster_index_on_notifications.rb | 7 +++++++ 1 file changed, 7 insertions(+) create mode 100644 db/migrate/20171226094803_more_faster_index_on_notifications.rb (limited to 'db/migrate') diff --git a/db/migrate/20171226094803_more_faster_index_on_notifications.rb b/db/migrate/20171226094803_more_faster_index_on_notifications.rb new file mode 100644 index 000000000..b2e53b82d --- /dev/null +++ b/db/migrate/20171226094803_more_faster_index_on_notifications.rb @@ -0,0 +1,7 @@ +class MoreFasterIndexOnNotifications < ActiveRecord::Migration[5.1] + def change + commit_db_transaction + add_index :notifications, [:account_id, :id], order: { id: :desc }, algorithm: :concurrently + remove_index :notifications, name: :index_notifications_on_id_and_account_id_and_activity_type + end +end -- cgit