1 files changed, 13 insertions, 0 deletions
diff --git a/db/migrate/20190820003045_update_statuses_index.rb b/db/migrate/20190820003045_update_statuses_index.rb
new file mode 100644
index 000000000..5c2ea1f6a
--- /dev/null
+++ b/db/migrate/20190820003045_update_statuses_index.rb
@@ -0,0 +1,13 @@
+class UpdateStatusesIndex < ActiveRecord::Migration[5.2]
+  disable_ddl_transaction!
+
+  def up
+    safety_assured { add_index :statuses, [:account_id, :id, :visibility, :updated_at], where: 'deleted_at IS NULL', order: { id: :desc }, algorithm: :concurrently, name: :index_statuses_20190820 }
+    remove_index :statuses, name: :index_statuses_20180106
+  end
+
+  def down
+    safety_assured { add_index :statuses, [:account_id, :id, :visibility, :updated_at], order: { id: :desc }, algorithm: :concurrently, name: :index_statuses_20180106 }
+    remove_index :statuses, name: :index_statuses_20190820
+  end
+end