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https://issues.apache.org/jira/browse/SPARK-27199?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon reassigned SPARK-27199:
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Assignee: Maxim Gekk
> Replace TimeZone by ZoneId in TimestampFormatter API
> ----------------------------------------------------
>
> Key: SPARK-27199
> URL: https://issues.apache.org/jira/browse/SPARK-27199
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.4.0
> Reporter: Maxim Gekk
> Assignee: Maxim Gekk
> Priority: Minor
>
> Internally, TimestampFormatter implementations use ZoneId but not TimeZone
> which comes via API. Conversion from TimeZone to ZoneId is not for free.
> Actually, TimeZone is converted to String, and the String and parsed to
> ZoneId. The conversion to String can be eliminated if TimestampFormatter
> would accept ZoneId. And also, TimeZone is converted from String in some
> cases (JSON options). So, in bad case String -> TimeZone -> String -> ZoneId
> -> ZoneOffset. The ticket aims to use ZoneId in TimestampFormatter API. We
> could require ZoneOffset but it is not convenient in most cases because
> conversion ZoneId to ZoneOffset requires Instant.
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