lpad

Left-pad the string column to width len with pad.

For the corresponding Databricks SQL function, see lpad function.

Syntax

from pyspark.sql import functions as dbf

dbf.lpad(col=<col>, len=<len>, pad=<pad>)

Parameters

Parameter	Type	Description
col	pyspark.sql.Column or str	target column to work on.
len	pyspark.sql.Column or int	length of the final string.
pad	pyspark.sql.Column or literal string	chars to prepend.

Returns

pyspark.sql.Column: left padded result.

Examples

from pyspark.sql import functions as dbf
df = spark.createDataFrame([('abcd',), ('xyz',), ('12',)], ['s',])
df.select("*", dbf.lpad(df.s, 6, '#')).show()
df = spark.createDataFrame([('abcd',), ('xyz',), ('12',)], ['s',])
df.select("*", dbf.lpad(df.s, 6, dbf.lit(b"\x75\x76"))).show()