Great! Thank you!
From: Reynold Xin [mailto:r...@databricks.com]
Sent: Thursday, April 02, 2015 8:11 AM
To: Haopu Wang
Cc: user; d...@spark.apache.org
Subject: Re: Can I call aggregate UDF in DataFrame?
You totally can.
https://github.com/apache/spark
You totally can.
https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/DataFrame.scala#L792
There is also an attempt at adding stddev here already:
https://github.com/apache/spark/pull/5228
On Thu, Mar 26, 2015 at 12:37 AM, Haopu Wang hw...@qilinsoft.com
