Reynold Xin created SPARK-8254:
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Summary: string function: printf
Key: SPARK-8254
URL: https://issues.apache.org/jira/browse/SPARK-8254
Project: Spark
Issue Type: Sub-task
Reporter: Reynold Xin
printf(String format, Obj... args): string
Returns the input formatted according do printf-style format strings.
We need to come up with a name for this in DataFrame -- maybe formatString.
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