oops, didn't mean to submit that quite yet.  crazy dog...

anyways, given that I have foo_props() which acts as  a kind of from-
clause
as in
select * from foo_props( 123);

I'd like to use that in relationship to a Foo class

i.e.
mapper( Foo, foo_table, properties( props = relationship( FooProps ) )

but of course I can't do a join between Foo and foo_props on foo_id
since foo_props takes it as a parameter.

I can do a
query( FooPropsType ).from_statement( "select  * from foo_props( %d )"
% foo_id )
but I'm not sure how to set that up as a relationship or
column_property.

Any hints would be greatly appreciated.

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