SELECT util.search_path_append('util');


SELECT mk_derived_col((:table_str, 'county'),
$$_alt("county.main", "county.alt")$$)
; -- runtime: 0.5 s ("Time: 610.516 ms") @starscream

SELECT mk_derived_col((:table_str, 'recordedBy'),
$$_join("recordedBy_primary", "recordedBy_additional")$$)
; -- runtime: 2 s ("Time: 2273.582 ms") @starscream