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Add index hotspots

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Pete 2022-05-06 18:35:09 -07:00
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commit aa51fd068b
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priv/repo/migrations/20220506175506_add_index_hotspots.exs Normal file
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# Pleroma: A lightweight social networking server
# Copyright © 2017-2022 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Repo.Migrations.AddIndexHotspots do
use Ecto.Migration
def change do
# Stop inserts into activities from doing a full-table scan of users:
create_if_not_exists(index(:users, [:ap_id, "COALESCE(follower_address, '')"]))
# Change two indexes and a filter recheck into one index scan:
create_if_not_exists(index(:following_relationships, [:follower_id, :state]))
create_if_not_exists(index(:notifications, [:user_id, :seen]))
end
end