```
SELECT *
FROM system.dictionaries
WHERE name LIKE 'XXXX%'

Row 1:
──────
database:                    default
name:                        XXXX_dict
uuid:                        00000000-0000-0000-0000-000000000000
status:                      LOADED
origin:                      default.XXXX_dict
type:                        Polygon
key:                         (Array(Array(Array(Array(Float64)))))
attribute.names:             ['name','id']
attribute.types:             ['String','String']
bytes_allocated:             0
query_count:                 0
hit_rate:                    1
element_count:               433731
load_factor:                 1
source:                      ClickHouse: default.XXXX
lifetime_min:                60
lifetime_max:                1800
loading_start_time:          2021-03-11 00:07:52
last_successful_update_time: 2021-03-11 00:08:24
loading_duration:            31.595
last_exception:
```
{
    return std::make_shared<PolygonDictionarySimple>(
            this->getDictionaryID(),
            this->dict_struct,
            this->source_ptr->clone(),
            this->dict_lifetime,
            this->input_type,
            this->point_type);
}
bool PolygonDictionarySimple::find(const Point & point, size_t & id) const
{
    bool found = false;
    for (size_t i = 0; i < polygons.size(); ++i)
    {
        if (bg::covered_by(point, polygons[i]))
        {
            id = i;
            found = true;
            break;
        }
    }
    return found;
}
PolygonDictionaryIndexEach::PolygonDictionaryIndexEach(