-- Add all names from the place nodes that deviate from the name
-- in the relation with the prefix '_place_'. Deviation means that
-- either the value is different or a given key is missing completely
- SELECT hstore(array_agg('_place_' || key), array_agg(value)) INTO extra_names
- FROM each(location.name - result.name);
- {% if debug %}RAISE WARNING 'Extra names: %', extra_names;{% endif %}
+ IF result.name is null THEN
+ SELECT hstore(array_agg('_place_' || key), array_agg(value))
+ INTO result.name
+ FROM each(location.name);
+ ELSE
+ SELECT hstore(array_agg('_place_' || key), array_agg(value)) INTO extra_names
+ FROM each(location.name - result.name);
+ {% if debug %}RAISE WARNING 'Extra names: %', extra_names;{% endif %}
- IF extra_names is not null THEN
- result.name := result.name || extra_names;
+ IF extra_names is not null THEN
+ result.name := result.name || extra_names;
+ END IF;
END IF;
{% if debug %}RAISE WARNING 'Final names: %', result.name;{% endif %}