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https://issues.apache.org/jira/browse/HIVE-28006?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Krisztian Kasa resolved HIVE-28006.
-----------------------------------
Fix Version/s: 4.1.0
Resolution: Fixed
Merged to master. Thanks [~abstractdog] and [~amansinha100] for the review.
> Materialized view with aggregate function incorrectly shows it allows
> incremental rebuild
> -----------------------------------------------------------------------------------------
>
> Key: HIVE-28006
> URL: https://issues.apache.org/jira/browse/HIVE-28006
> Project: Hive
> Issue Type: Bug
> Components: Materialized views
> Affects Versions: 4.0.0, 4.0.0-beta-1, 4.1.0
> Reporter: Krisztian Kasa
> Assignee: Krisztian Kasa
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.1.0
>
>
> {code}
> set hive.support.concurrency=true;
> set hive.txn.manager=org.apache.hadoop.hive.ql.lockmgr.DbTxnManager;
> create table store_sales (
> ss_sold_date_sk int,
> ss_ext_sales_price int,
> ss_customer_sk int
> ) stored as orc TBLPROPERTIES ('transactional'='true');
> insert into store_sales (ss_sold_date_sk, ss_ext_sales_price, ss_customer_sk)
> values (2, 2, 2);
> create materialized view mat1 stored as orc tblproperties
> ('format-version'='2') as
> select ss_customer_sk
> ,min(ss_ext_sales_price)
> ,count(*)
> from store_sales
> group by ss_customer_sk;
> delete from store_sales where ss_sold_date_sk = 1;
> show materialized views;
> explain cbo
> alter materialized view mat1 rebuild;
> {code}
> Incremental rebuild is available
> {code}
> # MV Name Rewriting Enabled Mode
> Incremental rebuild
> mat1 Yes Manual refresh
> Available
> {code}
> vs full rebuild plan
> {code}
> CBO PLAN:
> HiveAggregate(group=[{2}], agg#0=[min($1)], agg#1=[count()])
> HiveTableScan(table=[[default, store_sales]], table:alias=[store_sales])
> {code}
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