Oh dear, source filters. Well, maybe in Perl6, but for now I’m not putting any of those in my production code, sorry. :-)

Besides that non-specific objection, after a brief perusal of the docs, I have the same complaint as with DBIx::ContextualFetch: the choice of data structures is limited. I really do sometimes want a flattened list with the data from all rows.

Makeshifts last the longest.