Note
Access to this page requires authorization. You can try signing in or changing directories.
Access to this page requires authorization. You can try changing directories.
Important
This feature is in Public Preview.
Returns the envelope of all the geometries in the column, or None if the column has zero rows, or contains only None values.
For the corresponding Databricks SQL function, see st_envelope_agg function.
Syntax
from pyspark.databricks.sql import functions as dbf
dbf.st_envelope_agg(col=<col>)
Parameters
| Parameter | Type | Description |
|---|---|---|
col |
pyspark.sql.Column or str |
A Geometry value. |
Examples
from pyspark.databricks.sql import functions as dbf
df = spark.createDataFrame([('MULTIPOINT(EMPTY,4 3,5 6,-1 8)',), ('POLYGON((0 0,10 0,0 10,0 0))',)], ['wkt'])
df.select(dbf.st_asewkt(dbf.st_envelope_agg(dbf.st_geomfromtext('wkt', 4326))).alias('result')).collect()
[Row(result='SRID=4326;POLYGON((-1 0,-1 10,10 10,10 0,-1 0))')]