```
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:
```
{
public:
    /** Controls the different types of polygons allowed as input.
     *  The structure of a multi-polygon is as follows:
     *      - A multi-polygon is represented by a nonempty array of polygons.
     *      - A polygon is represented by a nonempty array of rings. The first element represents the outer ring. Zero
     *        or more following rings are cut out from the polygon.
     *      - A ring is represented by a nonempty array of points.
     *      - A point is represented by its coordinates stored in an according structure (see below).
     *  A simple polygon is represented by an one-dimensional array of points, stored in the according structure.
     */
    enum class InputType
    {
        MultiPolygon,
        SimplePolygon
    };
    /** Controls the different types allowed for providing the coordinates of points.
      * Right now a point can be represented by either an array or a tuple of two Float64 values.
      */
    enum class PointType