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Important
This feature is in Public Preview.
Parses the input WKB description and returns the corresponding Geometry value.
For the corresponding Databricks SQL function, see st_geomfromwkb function.
Syntax
from pyspark.databricks.sql import functions as dbf
dbf.st_geomfromwkb(col1=<col1>, col2=<col2>)
Parameters
| Parameter | Type | Description |
|---|---|---|
col1 |
pyspark.sql.Column or str |
A BINARY value in WKB format, representing a Geometry value. |
col2 |
pyspark.sql.Column or int, optional |
The optional SRID value of the geometry. Default is 0. |
Examples
from pyspark.databricks.sql import functions as dbf
df = spark.createDataFrame([(bytes.fromhex('010200000002000000000000000000144000000000000018400000000000001c4000000000000020c0'),)], ['wkb'])
df.select(dbf.st_asewkt(dbf.st_geomfromwkb('wkb')).alias('result')).collect()
[Row(result='LINESTRING(5 6,7 -8)')]
from pyspark.databricks.sql import functions as dbf
df = spark.createDataFrame([(bytes.fromhex('010200000002000000000000000000144000000000000018400000000000001c4000000000000020c0'), 4326,)], ['wkb', 'srid'])
df.select(dbf.st_asewkt(dbf.st_geomfromwkb('wkb', 'srid')).alias('result')).collect()
[Row(result='SRID=4326;LINESTRING(5 6,7 -8)')]