Convert string column to integer in DB

Questions & Help Questions
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2

Make a new migration file (in priv/repo/migrations) like:

defmodule YourApp.Repo.Migrations.StrToInt do
  use Ecto.Migration

  def change do
    alter table(:table_name) do
      remove :column_name
      add :column_name, :integer
    end
  end
end

Then run mix ecto.migrate