It works,thanks
在 2018-03-23 21:47:52，"Anthony, Olufemi" <[email protected]> 写道：
You can us import static to import it directly:
import static org.apache.spark.sql.functions.lit;
Femi
From: 崔苗 <[email protected]>
Date: Friday, March 23, 2018 at 8:34 AM
To: "[email protected]" <[email protected]>
Subject: how to use lit() in spark-java
Hi Guys,
I want to add a constant column to dataset by lit function in java, like that:
dataset.withColumn(columnName,lit("constant"))
but it's seems that idea coundn't found the lit() function,so how to use lit()
function in java?
thanks for any reply
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