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https://issues.apache.org/jira/browse/SPARK-29408?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun resolved SPARK-29408.
-----------------------------------
Fix Version/s: 3.0.0
Resolution: Fixed
Issue resolved by pull request 26438
[https://github.com/apache/spark/pull/26438]
> Support interval literal with negative sign `-`
> -----------------------------------------------
>
> Key: SPARK-29408
> URL: https://issues.apache.org/jira/browse/SPARK-29408
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Maxim Gekk
> Assignee: Maxim Gekk
> Priority: Major
> Fix For: 3.0.0
>
>
> For example:
> {code}
> maxim=# select -interval '1 day -1 hour';
> ?column?
> -------------------
> -1 days +01:00:00
> (1 row)
> maxim=# select - interval '1-2' AS "negative year-month";
> negative year-month
> ---------------------
> -1 years -2 mons
> (1 row)
> {code}
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