Inconsistency (code vs. id) of naming foreign key and referenced candidate key columns

Copy SQL

with fk as (select 
o.conname,
(select nspname from pg_namespace where oid=f.relnamespace) as foreign_schema,
f.relname as foreign_table,
f.oid as foreign_table_oid,
unnest(o.confkey) AS foreign_col,
(select nspname from pg_namespace where oid=c.relnamespace) as target_schema,
c.relname as target_table, 
c.oid as target_table_oid,
unnest(o.conkey) AS target_col
from pg_constraint o inner join pg_class c on c.oid = o.conrelid
inner join pg_class f on f.oid = o.confrelid 
where o.contype = 'f'),
fk_columns as (
select fk.conname, fk.foreign_schema, fk.foreign_table, a_foreign.attname as foreign_col, fk.target_schema, fk.target_table, a_target.attname as target_col
from fk inner join pg_attribute a_foreign on fk.foreign_col = a_foreign.attnum and fk.foreign_table_oid = a_foreign.attrelid and a_foreign.attisdropped = false
inner join pg_attribute a_target on fk.target_col = a_target.attnum and fk.target_table_oid = a_target.attrelid and a_target.attisdropped = false)
select *
from fk_columns
where ((foreign_col~*'id$' or foreign_col~*'^[_]{0,1}id_') and (target_col~*'_(kood|code|nr)$' or target_col~*'^[_]{0,1}(kood|code|nr)_'))
or
((foreign_col~*'_(kood|code|nr)$' or foreign_col~*'^[_]{0,1}(kood|code|nr)_') and (target_col~*'id$' or target_col~*'^[_]{0,1}id_'))
order by target_schema, target_table, conname;