isnotnull

Returns true if col is not null, or false otherwise.

For the corresponding Databricks SQL function, see isnotnull function.

Syntax

Python

from pyspark.sql import functions as dbf

dbf.isnotnull(col=<col>)

Parameters

Parameter	Type	Description
col	pyspark.sql.Column or str	The column to check.

Parameter	Type	Description
col	pyspark.sql.Column or str	The column to check.

Examples

Python

from pyspark.sql import functions as dbf
df = spark.createDataFrame([(None,), (1,)], ["e"])
df.select('*', dbf.isnotnull(df.e)).show()

Output

+----+---------------+
|   e|(e IS NOT NULL)|
+----+---------------+
|NULL|          false|
|   1|           true|
+----+---------------+