git.squeep.com Git - akkoma/blob - priv/repo/migrations/20220506175506_add_index_hotspots.exs

   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
   3 # SPDX-License-Identifier: AGPL-3.0-only
   4
   5 defmodule Pleroma.Repo.Migrations.AddIndexHotspots do
   6   use Ecto.Migration
   7
   8   def change do
   9     # Stop inserts into activities from doing a full-table scan of users:
  10     create_if_not_exists(index(:users, [:ap_id, "COALESCE(follower_address, '')"]))
  11
  12     # Change two indexes and a filter recheck into one index scan:
  13     create_if_not_exists(index(:following_relationships, [:follower_id, :state]))
  14
  15     create_if_not_exists(index(:notifications, [:user_id, :seen]))
  16   end
  17 end