Add index on subscribers

priv/repo/migrations/20190405160700_add_index_on_subscribers.exs

@@ -0,0 +1,8 @@
+defmodule Pleroma.Repo.Migrations.AddIndexOnSubscribers do
+  use Ecto.Migration
+  
+  @disable_ddl_transaction true
+  def change do
+    create index(:users, ["(info->'subscribers')"], name: :users_subscribers_index, using: :gin, concurrently: true)
+  end
+end