pyspark.sql.functions.hash

pyspark.sql.functions.hash(*cols: ColumnOrName) → pyspark.sql.column.Column

Calculates the hash code of given columns, and returns the result as an int column.

New in version 2.0.0.

Changed in version 3.4.0: Supports Spark Connect.

Parameters

colsColumn or str

one or more columns to compute on.

Returns

Column

hash value as int column.

Examples

>>> df = spark.createDataFrame([('ABC', 'DEF')], ['c1', 'c2'])

Hash for one column

>>> df.select(hash('c1').alias('hash')).show()
+----------+
|      hash|
+----------+
|-757602832|
+----------+

Two or more columns

>>> df.select(hash('c1', 'c2').alias('hash')).show()
+---------+
|     hash|
+---------+
|599895104|
+---------+

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