[
https://issues.apache.org/jira/browse/HIVE-24840?focusedWorklogId=597478&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-597478
]
ASF GitHub Bot logged work on HIVE-24840:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 17/May/21 06:53
Start Date: 17/May/21 06:53
Worklog Time Spent: 10m
Work Description: kasakrisz opened a new pull request #2280:
URL: https://github.com/apache/hive/pull/2280
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### What changes were proposed in this pull request?
Call `isSourceTablesCompacted` instead of `isSetSourceTablesCompacted` when
validating materialized views. Latter method only check whether the property is
null or not.
### Why are the changes needed?
`isSetSourceTablesCompacted` method check whether the property value should
be treated as null values or not and we need the non-null value here.
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
```
mvn test -Dtest.output.overwrite -DskipSparkTests
-Dtest=TestMiniLlapLocalCliDriver -Dqfile=materialized_view_create_rewrite_4.q
-pl itests/qtest -Pitests
mvn test -Dtest=TestMaterializedViewRebuild -pl itests/hive-unit -Pitests
```
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Issue Time Tracking
-------------------
Worklog Id: (was: 597478)
Time Spent: 2.5h (was: 2h 20m)
> Materialized View incremental rebuild produces wrong result set after
> compaction
> --------------------------------------------------------------------------------
>
> Key: HIVE-24840
> URL: https://issues.apache.org/jira/browse/HIVE-24840
> Project: Hive
> Issue Type: Bug
> Reporter: Krisztian Kasa
> Assignee: Krisztian Kasa
> Priority: Critical
> Labels: pull-request-available
> Fix For: 4.0.0
>
> Time Spent: 2.5h
> Remaining Estimate: 0h
>
> {code}
> create table t1(a int, b varchar(128), c float) stored as orc TBLPROPERTIES
> ('transactional'='true');
> insert into t1(a,b, c) values (1, 'one', 1.1), (2, 'two', 2.2), (NULL, NULL,
> NULL);
> create materialized view mat1 stored as orc TBLPROPERTIES
> ('transactional'='true') as
> select a,b,c from t1 where a > 0 or a is null;
> delete from t1 where a = 1;
> alter table t1 compact 'major';
> -- Wait until compaction finished.
> alter materialized view mat1 rebuild;
> {code}
> Expected result of query
> {code}
> select * from mat1;
> {code}
> {code}
> 2 two 2
> NULL NULL NULL
> {code}
> but if incremental rebuild is enabled the result is
> {code}
> 1 one 1
> 2 two 2
> NULL NULL NULL
> {code}
> Cause: Incremental rebuild queries whether the source tables of a
> materialized view has delete or update transaction since the last rebuild
> from metastore from COMPLETED_TXN_COMPONENTS table. However when a major
> compaction is performed on the source tables the records related to these
> tables are deleted from COMPLETED_TXN_COMPONENTS.
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