bitmap_count

Mengembalikan jumlah bit yang ditetapkan dalam bitmap input.

Syntax

from pyspark.sql import functions as sf

sf.bitmap_count(col)

Parameter-parameternya

Pengaturan	Tipe	Description
col	pyspark.sql.Column atau str	Bitmap input.

Examples

Contoh 1: Hitung bit yang ditetapkan dalam bitmap

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|
+-------------------------------+