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https://issues.apache.org/jira/browse/OOZIE-244?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Roman Shaposhnik reopened OOZIE-244:
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> GH-326: New 'dateAdd' EL function to enable specifying dataset ranges based
> on date deltas
> ------------------------------------------------------------------------------------------
>
> Key: OOZIE-244
> URL: https://issues.apache.org/jira/browse/OOZIE-244
> Project: Oozie
> Issue Type: Bug
> Reporter: Hadoop QA
>
> Currently dataset ranges are specified as frequency ranges, for many
> developers it is more natural to think in date ranges rather than frequency
> ranges.
> For example for an half-hourly dataset, today, the 48 instances for the the
> last day are expressed as the following range:
> <code>
> <start-instance>${coord:current(-47)}</start-instance>
> <end-instance>${coord:current(0)}</end-instance>
> </code>
> With the new 'dateAdd' EL function it would be:
> <code>
> <start-instance>${coord:dateAdd(coord:nominalTime(), -1,
> DAY)}</start-instance>
> <end-instance>${coord:nominalTime()}</end-instance>
> </code>
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