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https://issues.apache.org/jira/browse/IMPALA-10840?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zoltán Borók-Nagy resolved IMPALA-10840.
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Fix Version/s: Impala 4.1.0
Resolution: Fixed
> Add support for "FOR SYSTEM_TIME AS OF" and "FOR SYSTEM_VERSION AS OF" for
> Iceberg tables
> -----------------------------------------------------------------------------------------
>
> Key: IMPALA-10840
> URL: https://issues.apache.org/jira/browse/IMPALA-10840
> Project: IMPALA
> Issue Type: Sub-task
> Components: Frontend
> Reporter: Zoltán Borók-Nagy
> Assignee: Zoltán Borók-Nagy
> Priority: Major
> Labels: impala-iceberg
> Fix For: Impala 4.1.0
>
>
> SQL11 introduced a couple of temporal features:
> https://cs.ulb.ac.be/public/_media/teaching/infoh415/tempfeaturessql2011.pdf
> One of them is FOR SYSTEM_TIME AS OF which can be part of the table reference:
> https://jakewheat.github.io/sql-overview/sql-2011-foundation-grammar.html#query-system-time-period-specification
> With this extension the users are able to query the table at a given time
> point.
> HIVE-25344 also added support for this. It also adds another, non-standard
> clause: FOR SYSTEM_VERSION AS OF.
> In Impala we should add both to support time travel for Iceberg tables.
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