beliefer commented on code in PR #41608:
URL: https://github.com/apache/spark/pull/41608#discussion_r1230649551
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python/pyspark/sql/functions.py:
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@@ -1829,6 +1829,115 @@ def bitwise_not(col: "ColumnOrName") -> Column:
return _invoke_function_over_columns("bitwise_not", col)
+@try_remote_functions
+def bit_count(col: "ColumnOrName") -> Column:
+ """
+ Returns the number of bits that are set in the argument expr as an
unsigned 64-bit integer,
+ or NULL if the argument is NULL.
+
+ .. versionadded:: 3.5.0
+
+ Parameters
+ ----------
+ col : :class:`~pyspark.sql.Column` or str
+ target column to compute on.
+
+ Returns
+ -------
+ :class:`~pyspark.sql.Column`
+ the number of bits that are set in the argument expr as an unsigned
64-bit integer,
+ or NULL if the argument is NULL.
+
+ Examples
+ --------
+ >>> df = spark.createDataFrame([[1],[1],[2]], ["c"])
+ >>> df.select(bit_count("c")).show()
+ +------------+
+ |bit_count(c)|
+ +------------+
+ | 1|
+ | 1|
+ | 1|
+ +------------+
+ <BLANKLINE>
Review Comment:
OK
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