הערה
הגישה לדף זה מחייבת הרשאה. באפשרותך לנסות להיכנס או לשנות מדריכי כתובות.
הגישה לדף זה מחייבת הרשאה. באפשרותך לנסות לשנות מדריכי כתובות.
Important
This feature is in Public Preview.
Returns the input Geography or Geometry value in WKB format.
For the corresponding Databricks SQL function, see st_asbinary function.
Syntax
from pyspark.databricks.sql import functions as dbf
dbf.st_asbinary(col1=<col1>, col2=<col2>)
Parameters
| Parameter | Type | Description |
|---|---|---|
col1 |
pyspark.sql.Column or str |
A geospatial value, either a Geography or Geometry. |
col2 |
pyspark.sql.Column or str, optional |
The optional endianness of the output WKB, NDR for little-endian (default) or XDR for big-endian. |
Examples
from pyspark.databricks.sql import functions as dbf
from pyspark.sql.functions import hex
df = spark.createDataFrame([('LINESTRING(1 2,3 4)',)], ['wkt'])
df.select(hex(dbf.st_asbinary(dbf.st_geogfromtext('wkt'))).alias('result')).collect()
[Row(result='010200000002000000000000000000F03F000000000000004000000000000008400000000000001040')]
from pyspark.databricks.sql import functions as dbf
from pyspark.sql.functions import hex
df = spark.createDataFrame([('LINESTRING(1 2,3 4)', 'NDR',)], ['wkt', 'e'])
df.select(hex(dbf.st_asbinary(dbf.st_geogfromtext('wkt'), df.e)).alias('result')).collect()
[Row(result='010200000002000000000000000000F03F000000000000004000000000000008400000000000001040')]
from pyspark.databricks.sql import functions as dbf
from pyspark.sql.functions import hex
df = spark.createDataFrame([('LINESTRING(1 2,3 4)',)], ['wkt'])
df.select(hex(dbf.st_asbinary(dbf.st_geogfromtext('wkt'), 'XDR')).alias('result')).collect()
[Row(result='0000000002000000023FF0000000000000400000000000000040080000000000004010000000000000')]