跳转至
Apache Sedona 1.9.0 已正式发布,新增 Spark 4.1 支持、proj4sedona 坐标系转换、Bing Tile 函数等众多特性!

ST_IsEmpty

Introduction: Test if a geometry is empty geometry

ST_IsEmpty

Format: ST_IsEmpty (A: Geometry)

Return type: Boolean

Since: v1.2.1

Example:

SELECT ST_IsEmpty(ST_GeomFromWKT('POLYGON((0 0,0 1,1 1,1 0,0 0))'))

Output:

false