package Rel;

use strict; use warnings;

=pod

A set, class, function, relation or table.

=cut

sub new {
	my ($pkg) = @_;
	my $self = {
		fields => 
	};
	bless $self, $pkg;
}

sub get_fields {
	return 
	
}

sub next {
	
}


pkg->attr('fields');

sub match {}
