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https://issues.apache.org/jira/browse/SPARK-8199?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Reynold Xin updated SPARK-8199:
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Assignee: Tarek Auel
> date/time function: date_format
> -------------------------------
>
> Key: SPARK-8199
> URL: https://issues.apache.org/jira/browse/SPARK-8199
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Reporter: Reynold Xin
> Assignee: Tarek Auel
>
> date_format(date/timestamp/string ts, string fmt): string
> Converts a date/timestamp/string to a value of string in the format specified
> by the date format fmt (as of Hive 1.2.0). Supported formats are Java
> SimpleDateFormat formats –
> https://docs.oracle.com/javase/7/docs/api/java/text/SimpleDateFormat.html.
> The second argument fmt should be constant. Example:
> date_format('2015-04-08', 'y') = '2015'.
> date_format can be used to implement other UDFs, e.g.:
> dayname(date) is date_format(date, 'EEEE')
> dayofyear(date) is date_format(date, 'D')
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