snowflake.snowpark.functions.hash¶

snowflake.snowpark.functions.hash(*cols: ColumnOrName) → Column[source]¶

Returns a signed 64-bit hash value. Note that HASH never returns NULL, even for NULL inputs.

Examples:

>>> import decimal
>>> df = session.create_dataframe([[10, "10", decimal.Decimal(10), 10.0]], schema=["a", "b", "c", "d"])
>>> df.select(hash("a").alias("hash_a"), hash("b").alias("hash_b"), hash("c").alias("hash_c"), hash("d").alias("hash_d")).collect()
[Row(HASH_A=1599627706822963068, HASH_B=3622494980440108984, HASH_C=1599627706822963068, HASH_D=1599627706822963068)]
>>> df.select(hash(lit(None)).alias("one"), hash(lit(None), lit(None)).alias("two"), hash(lit(None), lit(None), lit(None)).alias("three")).collect()
[Row(ONE=8817975702393619368, TWO=953963258351104160, THREE=2941948363845684412)]

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