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https://issues.apache.org/jira/browse/SPARK-61176?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon reassigned SPARK-61176:
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Assignee: Hyukjin Kwon
> Keep the sign of a negative year-month interval of less than a year in the
> collected values of the Rust client
> --------------------------------------------------------------------------------------------------------------
>
> Key: SPARK-61176
> URL: https://issues.apache.org/jira/browse/SPARK-61176
> Project: Spark
> Issue Type: Bug
> Components: Connect
> Affects Versions: connect-rust-4.3.0
> Reporter: Hyukjin Kwon
> Assignee: Hyukjin Kwon
> Priority: Major
> Labels: pull-request-available
> Fix For: connect-rust-4.3.0
>
>
> The Rust client renders a collected year-month interval as "<years>-<months>"
> with format!("{}-{}", months / 12, (months % 12).abs()). Rust's / and %
> truncate toward zero, so a negative interval of less than a year loses its
> sign: INTERVAL '-1' MONTH (-1 month) is collected as "0-1", the value of +1
> month, and -11 months as "0-11". Only -12 months and below keep their sign
> ("-1-1" for -13).
> DataFrame::collect() of the Rust API returns these strings. The value should
> keep the sign of the interval, as Spark's "-0-1".
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