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https://issues.apache.org/jira/browse/HIVE-27187?focusedWorklogId=856314&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-856314
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ASF GitHub Bot logged work on HIVE-27187:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 12/Apr/23 03:49
Start Date: 12/Apr/23 03:49
Worklog Time Spent: 10m
Work Description: kasakrisz merged PR #4166:
URL: https://github.com/apache/hive/pull/4166
Issue Time Tracking
-------------------
Worklog Id: (was: 856314)
Time Spent: 4h (was: 3h 50m)
> Incremental rebuild of materialized view having aggregate and stored by
> iceberg
> -------------------------------------------------------------------------------
>
> Key: HIVE-27187
> URL: https://issues.apache.org/jira/browse/HIVE-27187
> Project: Hive
> Issue Type: Improvement
> Components: Iceberg integration, Materialized views
> Reporter: Krisztian Kasa
> Assignee: Krisztian Kasa
> Priority: Major
> Labels: pull-request-available
> Time Spent: 4h
> Remaining Estimate: 0h
>
> Currently incremental rebuild of materialized view stored by iceberg which
> definition query contains aggregate operator is transformed to an insert
> overwrite statement which contains a union operator if the source tables
> contains insert operations only. One branch of the union scans the view the
> other produces the delta.
> This can be improved further: transform the statement to a multi insert
> statement representing a merge statement to insert new aggregations and
> update existing.
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