[jira] [Commented] (CALCITE-5464) Implement BigQuery DATE_ADD/DATE_DIFF

["Tanner Clary (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CALCITE-5464?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17693771#comment-17693771 ] 

Tanner Clary commented on CALCITE-5464:
---------------------------------------

Closed in [cb97d29|https://github.com/apache/calcite/commit/cb97d299d2a04485a84916cff3f7be5497028b31], thanks for help/review [~julianhyde]!

> Implement BigQuery DATE_ADD/DATE_DIFF
> -------------------------------------
>
>                 Key: CALCITE-5464
>                 URL: https://issues.apache.org/jira/browse/CALCITE-5464
>             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 DATE_ADD/DATE_DIFF functions. 
> {{DATE_ADD(date_expression, interval)}} adds the interval to the date expression.
> Example: {{DATE_ADD(DATE '2008-12-25', INTERVAL 3 DAY)}} would return '2008-12-28'.
> [BigQuery docs|https://cloud.google.com/bigquery/docs/reference/standard-sql/date_functions#date_add]
> {{DATE_DIFF(date_expression, date_expression2, time_unit)}} returns the whole number of time_unit between the first and second date expressions, with the result being negative if the first date is earlier than the second.
> Example: {{DATE_DIFF(DATE '2008-12-25', DATE '2008-12-28', DAY)}} would return -3.
> [BigQuery docs|https://cloud.google.com/bigquery/docs/reference/standard-sql/date_functions#date_diff]



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