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https://issues.apache.org/jira/browse/CALCITE-5436?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jess Balint closed CALCITE-5436.
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Resolved in release 1.33.0 (2023-02-06)
> Implement DATE_SUB, TIME_SUB, TIMESTAMP_SUB (compatible w/ BigQuery)
> --------------------------------------------------------------------
>
> Key: CALCITE-5436
> URL: https://issues.apache.org/jira/browse/CALCITE-5436
> Project: Calcite
> Issue Type: Sub-task
> Reporter: Tanner Clary
> Assignee: Tanner Clary
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.33.0
>
> Time Spent: 50m
> Remaining Estimate: 0h
>
> Implement BigQuery's {{TIME_SUB}}, {{TIMESTAMP_SUB}}, and {{DATE_SUB}}
> functions. Each of these functions follows similar behavior, the primary
> difference being whether the specified interval is being subtracted from a
> {{TIME}}, {{TIMESTAMP}}, or {{DATE}} expression. Examples for each are
> provided below:
> [TIME_SUB|https://cloud.google.com/bigquery/docs/reference/standard-sql/time_functions#time_sub]:
> {{TIME_SUB(TIME '15:30:00', INTERVAL 10 MINUTE)}} would output '15:20:00'.
> [TIMESTAMP_SUB|https://cloud.google.com/bigquery/docs/reference/standard-sql/timestamp_functions#timestamp_sub]:
> {{TIMESTAMP_SUB(TIMESTAMP '2008-12-25 15:30:00, INTERVAL 1 HOUR)}} would
> output '2008-12-25 14:30:00'.
> [DATE_SUB|https://cloud.google.com/bigquery/docs/reference/standard-sql/date_functions#date_sub]:
> {{DATE_SUB(DATE '2008-12-25', INTERVAL 2 DAY)}} would output '2008-12-27'.
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