pyspark.sql.functions.bitmap_count

pyspark.sql.functions.bitmap_count(col)

Returns the number of set bits in the input bitmap.

New in version 3.5.0.

Parameters

colColumn or column name

The input bitmap.

See also

pyspark.sql.functions.bitmap_bit_position()

pyspark.sql.functions.bitmap_bucket_number()

pyspark.sql.functions.bitmap_construct_agg()

pyspark.sql.functions.bitmap_or_agg()

Examples

>>> from pyspark.sql import functions as sf
>>> df = spark.createDataFrame([("FFFF",)], ["a"])
>>> df.select(sf.bitmap_count(sf.to_binary(df.a, sf.lit("hex")))).show()
+-------------------------------+
|bitmap_count(to_binary(a, hex))|
+-------------------------------+
|                             16|
+-------------------------------+