st_npoints

Important

Support for GEOGRAPHY values is in Public Preview. Support for GEOMETRY values is generally available.

Returns the number of non-empty points in the input Geography or Geometry value.

For the corresponding Databricks SQL function, see st_npoints function.

This function is aliased by st_numpoints.

Syntax

from pyspark.databricks.sql import functions as dbf

dbf.st_npoints(col=<col>)

Parameters

Parameter	Type	Description
col	pyspark.sql.Column or str	A Geography or Geometry value.

Examples

from pyspark.databricks.sql import functions as dbf
df = spark.createDataFrame([('MULTIPOINT(10 34,44 57,EMPTY)',)], ['wkt'])
df.select(dbf.st_npoints(dbf.st_geomfromtext('wkt')).alias('result')).collect()

[Row(result=2)]