[jira] [Assigned] (HIVE-25546) Enable incremental rebuild of Materialized view with insert only source tables

["Krisztian Kasa (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-25546?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Krisztian Kasa reassigned HIVE-25546:
-------------------------------------


> Enable incremental rebuild of Materialized view 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
>
> {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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