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Posted to dev@hive.apache.org by "Krisztian Kasa (Jira)" <ji...@apache.org> on 2021/09/22 12:23:00 UTC
[jira] [Created] (HIVE-25546) Enable incremental rebuild of
Materialized view with insert only source tables
Krisztian Kasa created HIVE-25546:
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Summary: 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
{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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