Reynold Xin created SPARK-8187:
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Summary: date_sub function
Key: SPARK-8187
URL: https://issues.apache.org/jira/browse/SPARK-8187
Project: Spark
Issue Type: Sub-task
Reporter: Reynold Xin
date_sub(string startdate, int days): string
date_sub(date startdate, int days): date
Subtracts a number of days to startdate: date_sub('2008-12-31', 1) =
'2008-12-30'.
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