trim

Trim the spaces from both ends for the specified string column.

For the corresponding Databricks SQL function, see trim function.

Syntax

from pyspark.sql import functions as dbf

dbf.trim(col=<col>, trim=<trim>)

Parameters

Parameter	Type	Description
col	pyspark.sql.Column or str	target column to work on.
trim	pyspark.sql.Column or str, optional	The trim string characters to trim, the default value is a single space. Added in Databricks Runtime 16.1

Returns

pyspark.sql.Column: trimmed values from both sides.

Examples

from pyspark.sql import functions as dbf
df = spark.createDataFrame(["   Spark", "Spark  ", " Spark"], "STRING")
df.select("*", dbf.trim("value")).show()
df = spark.createDataFrame(["***Spark", "Spark**", "*Spark"], "STRING")
df.select("*", dbf.trim("value", dbf.lit("*"))).show()
df = spark.createDataFrame([("**Spark*", "*"), ("==Spark=", "=")], ["value", "t"])
df.select("*", dbf.trim("value", "t")).show()