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Important
This feature is in Public Preview.
Returns the number of non-empty points in the input Geography or Geometry value.
For the corresponding Databricks SQL function, see st_npoints function.
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)]