concat_ws

Concatenates multiple input string columns together into a single string column, using the given separator.

For the corresponding Databricks SQL function, see concat_ws function.

Syntax

from pyspark.sql import functions as dbf

dbf.concat_ws(sep=<sep>, *cols=<*cols>)

Parameters

Parameter	Type	Description
sep	literal string	words separator.
cols	pyspark.sql.Column or str	list of columns to work on.

Returns

pyspark.sql.Column: string of concatenated words.

Examples

from pyspark.sql import functions as dbf
df = spark.createDataFrame([("abcd", "123")], ["s", "d"])
df.select("*", dbf.concat_ws("-", df.s, "d", dbf.lit("xyz"))).show()