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https://issues.apache.org/jira/browse/SPARK-27546?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16823801#comment-16823801
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Jiatao Tao commented on SPARK-27546:
------------------------------------
see an example like this:
{code:java}
// config spark session with "spark.sql.session.timeZone", "UTC"
val df = mockDF
// TimeZone.setDefault(TimeZone.getTimeZone("UTC"))
val date = new Date(1356998400000L) // 2013-01-01 (UTC)
val ts =
df.select(lit(date).cast(TimestampType).cast(DateType)).head().getDate(0).getTime
{code}
The ts I got is: 1356969600000 (12/31/2012 UTC)
When I set "TimeZone.setDefault(TimeZone.getTimeZone("UTC"))", the ts is same
with 1356998400000.
> Should repalce DateTimeUtils#defaultTimeZoneuse with sessionLocalTimeZone
> -------------------------------------------------------------------------
>
> Key: SPARK-27546
> URL: https://issues.apache.org/jira/browse/SPARK-27546
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.4.1
> Reporter: Jiatao Tao
> Priority: Minor
>
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