ltrim

Trim the spaces from left end for the specified string value.

For the corresponding Databricks SQL function, see ltrim function.

Syntax

from pyspark.databricks.sql import functions as dbf

dbf.ltrim(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

Returns

pyspark.sql.Column: left trimmed values.

Examples

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