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https://issues.apache.org/jira/browse/CALCITE-5469?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated CALCITE-5469:
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Labels: pull-request-available (was: )
> Implement BigQuery DATETIME_ADD/DATETIME_DIFF
> ---------------------------------------------
>
> Key: CALCITE-5469
> URL: https://issues.apache.org/jira/browse/CALCITE-5469
> Project: Calcite
> Issue Type: Sub-task
> Reporter: Tanner Clary
> Assignee: Tanner Clary
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Add support for BigQuery's {{DATETIME_ADD/DATETIME_DIFF}} functions.
> {{DATETIME_ADD(datetime, interval)}} can accept a timestamp (or a datetime,
> which is an alias for timestamp) for its first argument and an interval for
> its second. The output is the datetime that occurs {{interval}} after the
> provided {{datetime}}.
> {{DATETIME_DIFF(datetime, datetime2, timeUnit)}} returns the whole number of
> {{timeUnit}} between {{datetime}} and {{datetime2}}, with the result being
> negative if {{datetime}} occurs before {{datetime2}}
> Examples:
> {{DATETIME_ADD(TIMESTAMP '2008-12-25 15:30:00', INTERVAL 5 MINUTE)}} would
> return: '2008-12-25 15:35:00'.
> {{DATETIME_DIFF(DATETIME '2008-12-25 15:30:00', DATETIME '2008-12-26
> 15:30:00', DAY)}} would return: -1.
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