=back
-=head1 NEW METHODS
+=head1 NEW METHODS (EXPERIMENTAL)
See L<SQL::Abstract::Reference> for the C<expr> versus C<aqt> concept and
an explanation of what the below extensions are extending.
+=head2 plugin
+
+ $sqla->plugin('+Foo');
+
+Enables plugin SQL::Abstract::Plugin::Foo.
+
=head2 render_expr
my ($sql, @bind) = $sqla->render_expr($expr);