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https://issues.apache.org/jira/browse/HIVE-25546?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Krisztian Kasa updated HIVE-25546:
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Status: Patch Available (was: Open)
> Enable incremental rebuild of Materialized views with insert only source
> tables
> -------------------------------------------------------------------------------
>
> Key: HIVE-25546
> URL: https://issues.apache.org/jira/browse/HIVE-25546
> Project: Hive
> Issue Type: Improvement
> Components: CBO, Materialized views
> Reporter: Krisztian Kasa
> Assignee: Krisztian Kasa
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> {code}
> create table t1(a int, b int, c int) stored as parquet TBLPROPERTIES
> ('transactional'='true', 'transactional_properties'='insert_only');
> create materialized view mat1 stored as orc TBLPROPERTIES
> ('transactional'='true') as
> select a, b, c from t1 where a > 10;
> {code}
> Currently materialized view *mat1* can not be rebuilt incrementally because
> it has an insert only source table (t1). Such tables does not have
> ROW_ID.write_id which is required to identify newly inserted records since
> the last rebuild.
> HIVE-25406 adds the ability to query write_id.
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