Spark Dataframe连接字符串

Question

如何使用Spark-Scala连接日期和时间列（两个字符串）

+---+-------------------+-----+
| ID|   Date            |Time
+---+------------------ +-----+
|  G|2014.01.14 00:00:00| 1:00
+---+-------------------+------

"2014.01.14 1:00" 

Answer 1

尝试一下，

result.withColumn("Date && Time", concat(regexp_replace(col("date"),"00:00:00",""), lit(""), (col("time"))))

Answer 2

您可以使用：

result.withColumn("Date && Time", concat(col("Date"), lit(""), (col("Time")) ));