Sequel plugin to override default select_append behaviour which adds '*' to select query if there is no prior selections

select_append_no_default_all.rb

module Sequel::Plugins::SelectAppendNoDefaultAll
  module DatasetMethods
    def select_append(*columns, &block)
      cur_sel = @opts[:select]
      return select(*columns, &block) if !cur_sel || cur_sel.empty?
      select(*(cur_sel + columns), &block)
    end
  end
end