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https://issues.apache.org/jira/browse/SPARK-29671?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16963375#comment-16963375
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Maxim Gekk commented on SPARK-29671:
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For example, PostgreSQL displays intervals like:
{code}
maxim=# select interval '1010 year 9 month 8 day 7 hour 6 minute -5 second 4
millisecond -3 microseconds';
interval
------------------------------------------
1010 years 9 mons 8 days 07:05:55.003997
(1 row)
{code}
but this requires "normalization" because time fields cannot be negative.
> Change format of interval string
> --------------------------------
>
> Key: SPARK-29671
> URL: https://issues.apache.org/jira/browse/SPARK-29671
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Maxim Gekk
> Priority: Minor
>
> The ticket aims to improve format of interval representation as a string. See
> https://github.com/apache/spark/pull/26313#issuecomment-547820035
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