expr

Parses the expression string into the column that it represents. Supports Spark Connect.

Syntax

from pyspark.sql import functions as dbf

dbf.expr(str=<str>)

Parameters

Parameter	Type	Description
str	str	Expression defined in string.

Returns

pyspark.sql.Column: column representing the expression.

Examples

from pyspark.sql import functions as dbf
df = spark.createDataFrame([["Alice"], ["Bob"]], ["name"])
df.select("*", dbf.expr("length(name)")).show()

+-----+------------+
| name|length(name)|
+-----+------------+
|Alice|           5|
|  Bob|           3|
+-----+------------+