create or replace internal function sys_catalog.bool_eq_numeric(bool, numeric) returns bool as $$ select $1::numeric = $2; $$ language sql;

create operator sys_catalog.= (procedure = bool_eq_numeric,leftarg = bool,rightarg = numeric,commutator = =);

create or replace internal function sys_catalog.numeric_eq_bool(numeric, bool) returns bool as $$ select $1 = $2::numeric; $$ language sql;

create operator sys_catalog.= (procedure = numeric_eq_bool,leftarg = numeric,rightarg = bool,commutator = =);