Are you using the SQLContext? I think the HiveContext is recommended.

Cheng Hao

From: Wush Wu [mailto:w...@bridgewell.com]
Sent: Thursday, February 12, 2015 2:24 PM
To: u...@spark.incubator.apache.org
Subject: Extract hour from Timestamp in Spark SQL

Dear all,

I am new to Spark SQL and have no experience of Hive.
I tried to use the built-in Hive Function to extract the hour from timestamp in 
spark sql, but got : "java.util.NoSuchElementException: key not found: hour"
How should I extract the hour from timestamp?
And I am very confusing about which functions I could use in Spark SQL. Is 
there any list of available functions except  
http://spark.apache.org/docs/1.2.0/sql-programming-guide.html#compatibility-with-apache-hive
 ?
Thanks,
Wush


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