isNotNull

Controleer of de kolomwaarde niet null is.

Syntaxis

isNotNull()

Retouren

Kolom (Booleaanse waarde)

Examples

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

# [Row(name='Tom', height=80)]