dataframe.limit(1).selectExpr("xxx").collect()?
-----Original Message-----
From: chrish2312 [mailto:[email protected]]
Sent: Wednesday, July 8, 2015 6:20 AM
To: [email protected]
Subject: Hive UDFs
I know the typical way to apply a hive UDF to a dataframe is basically
something like:
dataframe.selectExpr("reverse(testString) as reversedString")
Is there a way to apply the hive UDF just to a single row and get a row back?
Something like:
dataframe.first.selectExpr("reverse(testString) as reversedString")
Thanks in advance!
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