defmodule Backend.Repo.Migrations.RemoveCrawlError do
  use Ecto.Migration

  def change do
    execute("DELETE FROM crawls WHERE error IS NOT NULL", "")

    alter table(:crawls) do
      remove :error, :string
    end

    alter table(:instances) do
      add :crawl_error, :string
      add :crawl_error_count, :integer, default: 0, null: false
    end
  end
end