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https://issues.apache.org/jira/browse/HIVE-25353?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17403054#comment-17403054
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Krisztian Kasa commented on HIVE-25353:
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Currently the partition based incremental MV rebuild is an insert-overwrite.
The incremental rebuild plan selects all the records from all partitions which
should be overwritten and filters out all records which are in partitions which
should be left intact. A side effect of this that we can not distinguish
between partitions which should be left intact or all records should be deleted.
> Incremental rebuild of partitioned insert only MV in presence of delete
> operations
> ----------------------------------------------------------------------------------
>
> Key: HIVE-25353
> URL: https://issues.apache.org/jira/browse/HIVE-25353
> Project: Hive
> Issue Type: Improvement
> Components: CBO, Materialized views
> Reporter: Krisztian Kasa
> Assignee: Krisztian Kasa
> Priority: Major
> Labels: pull-request-available
> Time Spent: 20m
> Remaining Estimate: 0h
>
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