Pieterjan Vriends created HIVE-3850:
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Summary: hour() function returns 12 hour clock value when using
timestamp datatype.
Key: HIVE-3850
URL: https://issues.apache.org/jira/browse/HIVE-3850
Project: Hive
Issue Type: Improvement
Components: UDF
Reporter: Pieterjan Vriends
Priority: Minor
Apparently UDFHour.java does have two evaluate() functions. One that does
accept a Text object as parameter and one that does use a TimeStampWritable
object as parameter. The first function does return the value of
Calendar.HOUR_OF_DAY and the second one of Calendar.HOUR. In the documentation
I couldn't find any information on the overload of the evaluation function. I
did spent quite some time finding out why my statement didn't return a 24 hour
clock value.
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