akkoma/priv/repo/migrations/20190118074940_fix_user_trigram_index.exs

defmodule Pleroma.Repo.Migrations.FixUserTrigramIndex do
  use Ecto.Migration

  def up do
    drop_if_exists index(:users, [], name: :users_trigram_index)
    create index(:users, ["(trim(nickname || ' ' || name)) gist_trgm_ops"], name: :users_trigram_index, using: :gist)
  end

  def down do
    drop_if_exists index(:users, [], name: :users_trigram_index)
    create index(:users, ["(nickname || name) gist_trgm_ops"], name: :users_trigram_index, using: :gist)
  end
end