isNull

Periksa apakah nilai kolom null.

Sintaksis

isNull()

Pengembalian Barang

Kolom (boolean)

Examples

from pyspark.sql import Row
df = spark.createDataFrame([Row(name='Tom', height=80), Row(name='Alice', height=None)])
df.filter(df.height.isNull()).collect()

# [Row(name='Alice', height=None)]