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https://issues.apache.org/jira/browse/SPARK-26740?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan updated SPARK-26740:
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Fix Version/s: 2.4.1
> Statistics for date and timestamp columns depend on system time zone
> --------------------------------------------------------------------
>
> Key: SPARK-26740
> URL: https://issues.apache.org/jira/browse/SPARK-26740
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.4.0
> Reporter: Maxim Gekk
> Assignee: Maxim Gekk
> Priority: Major
> Fix For: 2.4.1, 3.0.0
>
>
> While saving statistics for timestamp/date columns, default time zone is used
> in conversion of internal type (microseconds or days since epoch) to textual
> representation. The textual representation doesn't contain time zone. So,
> when it is converted back to internal types (Long for TimestampType or
> DateType), the Timestamp.valueOf and Date.valueOf are used in conversions.
> The methods use current system time zone.
> If system time zone is different while saving and retrieving statistics for
> timestamp/date columns, restored microseconds/days since epoch will be
> different.
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