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https://issues.apache.org/jira/browse/SPARK-38317?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17497926#comment-17497926
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Max Gekk commented on SPARK-38317:
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This is the expected behavior, Spark truncates java.time.Period to months.
> Encoding of java.time.Period always results in "INTERVAL '0-0' YEAR TO MONTH"
> -----------------------------------------------------------------------------
>
> Key: SPARK-38317
> URL: https://issues.apache.org/jira/browse/SPARK-38317
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 3.2.0, 3.2.1
> Reporter: Jolan Rensen
> Priority: Major
>
> {code}
> val dates = Seq(
> Period.ZERO,
> Period.ofWeeks(2),
> ).toDS()
> dates.show(false)
> {code}
> Results in:
> {code}
> +----------------------------+
> |value |
> +----------------------------+
> |INTERVAL '0-0' YEAR TO MONTH|
> |INTERVAL '0-0' YEAR TO MONTH|
> +----------------------------+
> {code}
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