The rule created for pathman partition doesn't work (but trigger works!).

Doesn't work:
CREATE RULE shardman_data_t_8_4_3_update AS ON UPDATE TO t_8 DO UPDATE shardman_data_t_8_4_3_fdw SET u = new.u, v = new.v WHERE (shardman_data_t_8_4_3_fdw.u = old.u);

Works:
create or replace function on_t8_update() returns trigger as $$ begin update shardman_data_t_8_4_3_fdw SET u = new.u, v = new.v WHERE (shardman_data_t_8_4_3_fdw.u = old.u); return new; end; $$ LANGUAGE plpgsql; create trigger on_t8_update_trigger after update on t_8 for each row execute procedure on_t8_update();