```
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:
```
}
    query_count.fetch_add(points.size(), std::memory_order_relaxed);
}
namespace
{
struct Offset
{
    Offset() = default;
    IColumn::Offsets ring_offsets;
    IColumn::Offsets polygon_offsets;
    IColumn::Offsets multi_polygon_offsets;
    IColumn::Offset points_added = 0;
    IColumn::Offset current_ring = 0;
    IColumn::Offset current_polygon = 0;
    IColumn::Offset current_multi_polygon = 0;
    Offset& operator++()
    {
        ++points_added;
        if (points_added <= ring_offsets[current_ring])
            return *this;
        ++current_ring;
        if (current_ring < polygon_offsets[current_polygon])
            return *this;
        ++current_polygon;
        if (current_polygon < multi_polygon_offsets[current_multi_polygon])
            return *this;
        ++current_multi_polygon;
        return *this;
    }
    bool atLastPolygonOfMultiPolygon() { return current_polygon + 1 == multi_polygon_offsets[current_multi_polygon]; }