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https://issues.apache.org/jira/browse/SPARK-29383?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16985724#comment-16985724
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Xiao Li commented on SPARK-29383:
---------------------------------
How about the other systems?
> Support the optional prefix `@` in interval strings
> ---------------------------------------------------
>
> Key: SPARK-29383
> URL: https://issues.apache.org/jira/browse/SPARK-29383
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Maxim Gekk
> Priority: Major
>
> PostgreSQL allows `@` at the beginning and `ago` at the end of interval
> strings:
> {code}
> maxim=# select interval '@ 14 seconds';
> interval
> ----------
> 00:00:14
> {code}
> See
> https://www.postgresql.org/docs/current/datatype-datetime.html#DATATYPE-INTERVAL-INPUT
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