CREATE OR REPLACE RULE replace_expression_answer AS ON INSERT TO dict.expression_answer WHERE (EXISTS ( SELECT 1 FROM dict.expression_answer expression_answer_1 WHERE expression_answer_1.id = new.id AND expression_answer_1.expression_id = new.expression_id)) DO INSTEAD UPDATE dict.expression_answer SET header = new.header, condition = new.condition, formula = new.formula WHERE expression_answer.id = new.id AND expression_answer.expression_id = new.expression_id;
But in PGAdmin 4 I see only
CREATE OR REPLACE RULE replace_expression_answer AS ON INSERT TO dict.expression_answer WHERE expression_answer_1.id = new.id AND expression_answer_1.expression_id = new.expression_id)) DO INSTEAD UPDATE dict.expression_answer SET header = new.header, condition = new.condition, formula = new.formula WHERE expression_answer.id = new.id AND expression_answer.expression_id = new.expression_id;