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https://issues.apache.org/jira/browse/HIVE-5472?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16223181#comment-16223181
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Lefty Leverenz commented on HIVE-5472:
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HIVE-11127 requests additional documentation about current_date and
current_timestamp.
> support a simple scalar which returns the current timestamp
> -----------------------------------------------------------
>
> Key: HIVE-5472
> URL: https://issues.apache.org/jira/browse/HIVE-5472
> Project: Hive
> Issue Type: Improvement
> Affects Versions: 0.11.0
> Reporter: N Campbell
> Assignee: Jason Dere
> Fix For: 1.2.0
>
> Attachments: HIVE-5472.1.patch, HIVE-5472.2.patch, HIVE-5472.3.patch,
> HIVE-5472.4.patch
>
>
> ISO-SQL has two forms of functions
> local and current timestamp where the former is a TIMESTAMP WITHOUT TIMEZONE
> and the latter with TIME ZONE
> select cast ( unix_timestamp() as timestamp ) from T
> implement a function which computes LOCAL TIMESTAMP which would be the
> current timestamp for the users session time zone.
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