module ActiveRecord::ConnectionAdapters::PostgreSQL::Quoting

def quote_default_expression(value, column) # :nodoc:
  if value.is_a?(Proc)
    value.call
  elsif column.type == :uuid && value.is_a?(String) && value.include?("()")
    value # Does not quote function default values for UUID columns
  elsif column.respond_to?(:array?)
    type = lookup_cast_type_from_column(column)
    quote(type.serialize(value))
  else
    super
  end
end