improvement: Preserve attribute order

[zimt28]

A new PR as I messed up the Git history on the old one. I've deleted the priv/ folder and run the migrations, but I'm still getting this:

def up do
  create table(:posts, primary_key: false) do
    add :id, :uuid, null: false, default: fragment("uuid_generate_v4()"), primary_key: true
    add :title, :text
    add :score, :bigint
    add :public, :boolean
    add :category, :citext
    add :type, :text, default: "sponsored"
    add :price, :bigint
  end

  create constraint(:posts, :price_must_be_positive, check: "type = 'sponsored' AND price > 0")

  alter table(:posts) do
    add :decimal, :decimal, default: 0
    add :status, :status
  end

[zachdaniel]

Ah, I think we need to add logic to push constraints to the bottom as well.

[zachdaniel]

but it looks like your PR is working as intended. Probably will have unexpected ordering when multiple resources uses the same table, but that doesn't really matter.

[zachdaniel]

Great work!

🚀 Thank you for your contribution! 🚀