Convert to Ontology GeoPoint(转换为 Ontology GeoPoint)¶
Supported in: Batch, Faster, Streaming
Convert a GeoPoint into a string that the Ontology will accept for a geo-indexed column (a geohash type column). Ontology GeoPoints are strings of the format '{lat},{lon}', where -90 <= lat <= 90 and -180 <= lon <= 180.
Expression categories: Geospatial
Declared arguments¶
- Expression: GeoPoint to convert.
Expression\
Output type: Ontology GeoPoint
Examples¶
Example 1: Base case¶
Argument values:
- Expression:
point
| point | Output |
|---|---|
| { latitude: -20.0, longitude: 80.0, } |
-20.0000000,80.0000000 |
| { latitude: 38.9031, longitude: -77.0599, } |
38.9031000,-77.0599000 |
| { latitude: 41.987654321, longitude: -99.123456789, } |
41.9876543,-99.1234568 |
| null | null |
中文翻译¶
转换为 Ontology GeoPoint¶
支持:批量(Batch)、快速(Faster)、流式(Streaming)
将 GeoPoint 转换为 Ontology 可接受的字符串格式,用于地理索引列(geohash 类型列)。Ontology GeoPoint 是格式为 '{lat},{lon}' 的字符串,其中 -90 ≤ lat ≤ 90,-180 ≤ lon ≤ 180。
表达式类别: 地理空间(Geospatial)
声明的参数¶
- 表达式(Expression): 要转换的 GeoPoint。
Expression\
输出类型: Ontology GeoPoint
示例¶
示例 1:基本情况¶
参数值:
- 表达式:
point
| point | 输出 |
|---|---|
| { latitude: -20.0, longitude: 80.0, } |
-20.0000000,80.0000000 |
| { latitude: 38.9031, longitude: -77.0599, } |
38.9031000,-77.0599000 |
| { latitude: 41.987654321, longitude: -99.123456789, } |
41.9876543,-99.1234568 |
| null | null |