xxhash64
Calculates the hash code of given columns using the 64-bit variant of the xxHash algorithm, and returns the result as a long column. The hash computation uses an initial seed of 42. Supports Spark Connect.
For the corresponding Databricks SQL function, see xxhash64 function.
Syntax
Python
from pyspark.sql import functions as dbf
dbf.xxhash64(*cols)
Parameters
Parameter | Type | Description |
|---|---|---|
|
| One or more columns to compute on. |
Returns
pyspark.sql.Column: hash value as long column.
Examples
Example 1: Computing xxhash64 of a single column
Python
from pyspark.sql import functions as dbf
df = spark.createDataFrame([('ABC', 'DEF')], ['c1', 'c2'])
df.select('*', dbf.xxhash64('c1')).show()
Output
+---+---+-------------------+
| c1| c2| xxhash64(c1)|
+---+---+-------------------+
|ABC|DEF|4105715581806190027|
+---+---+-------------------+
Example 2: Computing xxhash64 of multiple columns
Python
from pyspark.sql import functions as dbf
df = spark.createDataFrame([('ABC', 'DEF')], ['c1', 'c2'])
df.select('*', dbf.xxhash64('c1', df.c2)).show()
Output
+---+---+-------------------+
| c1| c2| xxhash64(c1, c2)|
+---+---+-------------------+
|ABC|DEF|3233247871021311208|
+---+---+-------------------+