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https://issues.apache.org/jira/browse/IMPALA-7973?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16885410#comment-16885410
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Vihang Karajgaonkar commented on IMPALA-7973:
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Thats right. This does not add new configurations. In case of partition events,
if the documentation says it invalidates the table, with this patch it should
say it refreshes the partitions from the event. Only applies to the alter, add
and drop partition events. Hope that helps.
> Add support for fine-grained updates at partition level
> -------------------------------------------------------
>
> Key: IMPALA-7973
> URL: https://issues.apache.org/jira/browse/IMPALA-7973
> Project: IMPALA
> Issue Type: Sub-task
> Reporter: Vihang Karajgaonkar
> Assignee: Anurag Mantripragada
> Priority: Major
> Fix For: Impala 3.3.0
>
>
> When data is inserted into a partition or a new partition is created in a
> large table, we should not be invalidating the whole table. Instead it should
> be possible to refresh/add/drop certain partitions on the table directly
> based on the event information. This would help with the performance of
> subsequent access to the table by avoiding reloading the large table.
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