pyspark.sql.functions.bitmap_count

pyspark.sql.functions.bitmap_count(col: ColumnOrName) → pyspark.sql.column.Column

Returns the number of set bits in the input bitmap.

New in version 3.5.0.

Parameters

colColumn or str

The input bitmap.

Examples

>>> df = spark.createDataFrame([("FFFF",)], ["a"])
>>> df.select(bitmap_count(to_binary(df.a, lit("hex"))).alias('r')).collect()
[Row(r=16)]

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