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From "Xiao Li (Jira)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-29384) Support `ago` in interval strings
Date Sun, 01 Dec 2019 23:56:05 GMT

    [ https://issues.apache.org/jira/browse/SPARK-29384?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16985723#comment-16985723
] 

Xiao Li commented on SPARK-29384:
---------------------------------

How about the other systems?

> Support `ago` in interval strings
> ---------------------------------
>
>                 Key: SPARK-29384
>                 URL: https://issues.apache.org/jira/browse/SPARK-29384
>             Project: Spark
>          Issue Type: Sub-task
>          Components: SQL
>    Affects Versions: 3.0.0
>            Reporter: Maxim Gekk
>            Priority: Major
>
> PostgreSQL allow to specify direction in interval string by the `ago` word:
> {code}
> maxim=# select interval '@ 1 year 2 months 3 days 14 seconds ago';
>               interval              
> ------------------------------------
>  -1 years -2 mons -3 days -00:00:14
> {code}
>  See https://www.postgresql.org/docs/current/datatype-datetime.html#DATATYPE-INTERVAL-INPUT



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