Sorting based on geographic location - Tablestore - Alibaba Cloud Documentation Center

GeoDistanceSort specifies sorting based on geographical locations.

Data structure

message GeoDistanceSort {
    optional string field_name = 1;
    repeated string points = 2;
    optional SortOrder order = 3;
    optional SortMode mode = 4;
    optional GeoDistanceType distance_type = 5;
    optional NestedFilter nested_filter = 6;
}

Parameter	Type	Required	Description
field_name	string	Yes	The name of the field.
points	string	Yes	The coordinate pair of the central point. The coordinate pair consists of latitude and longitude values. This parameter value must be in the format of `latitude,longitude`. Valid values of the latitude: `[-90,+90]`. Valid values of the longitude: `[-180,+180]`. Example: `35.8,-45.91`.
order	SortOrder	No	The sorting method. You can sort fields in the ascending or descending order. By default, fields are sorted in the ascending order. If you sort fields in the ascending order, points that are nearer to the central point are placed at the beginning.
mode	SortMode	No	A field of the array type has multiple values. This parameter specifies which value is used for sorting when the field has multiple values.
distance_type	GeoDistanceType	No	The method for calculating the geographical distance.
nested_filter	NestedFilter	No	The filter condition of fields in the nested data type. This parameter is required only if the fields are of the nested data type.