priv/repo/migrations/20180221210540_make_following_postgres_array.exs


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

  def up do
    alter table(:users) do
      add(:following_temp, {:array, :string})
    end

    execute("""
    update users set following_temp = array(select jsonb_array_elements_text(following));
    """)

    alter table(:users) do
      remove(:following)
    end

    rename(table(:users), :following_temp, to: :following)
  end

  def down, do: :ok
end