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https://issues.apache.org/jira/browse/HIVE-23712?focusedWorklogId=495661&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-495661
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ASF GitHub Bot logged work on HIVE-23712:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 06/Oct/20 00:52
Start Date: 06/Oct/20 00:52
Worklog Time Spent: 10m
Work Description: github-actions[bot] commented on pull request #1182:
URL: https://github.com/apache/hive/pull/1182#issuecomment-703966215
This pull request has been automatically marked as stale because it has not
had recent activity. It will be closed if no further activity occurs.
Feel free to reach out on the [email protected] list if the patch is in
need of reviews.
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Issue Time Tracking
-------------------
Worklog Id: (was: 495661)
Time Spent: 20m (was: 10m)
> metadata-only queries return incorrect results with empty acid partition
> ------------------------------------------------------------------------
>
> Key: HIVE-23712
> URL: https://issues.apache.org/jira/browse/HIVE-23712
> Project: Hive
> Issue Type: Bug
> Reporter: László Bodor
> Assignee: László Bodor
> Priority: Major
> Labels: pull-request-available
> Time Spent: 20m
> Remaining Estimate: 0h
>
> Similarly to HIVE-15397, queries can return incorrect results for
> metadata-only queries, here is a repro scenario which affects master:
> {code}
> set hive.support.concurrency=true;
> set hive.exec.dynamic.partition.mode=nonstrict;
> set hive.txn.manager=org.apache.hadoop.hive.ql.lockmgr.DbTxnManager;
> set hive.optimize.metadataonly=true;
> create table test1 (id int, val string) partitioned by (val2 string) STORED
> AS ORC TBLPROPERTIES ('transactional'='true');
> describe formatted test1;
> alter table test1 add partition (val2='foo');
> alter table test1 add partition (val2='bar');
> insert into test1 partition (val2='foo') values (1, 'abc');
> select distinct val2, current_timestamp from test1;
> insert into test1 partition (val2='bar') values (1, 'def');
> delete from test1 where val2 = 'bar';
> select '--> hive.optimize.metadataonly=true';
> select distinct val2, current_timestamp from test1;
> set hive.optimize.metadataonly=false;
> select '--> hive.optimize.metadataonly=false';
> select distinct val2, current_timestamp from test1;
> select current_timestamp, * from test1;
> {code}
> in this case 2 rows returned instead of 1 after a delete with metadata only
> optimization:
> https://github.com/abstractdog/hive/commit/a7f03513564d01f7c3ba4aa61c4c6537100b4d3f#diff-cb23043000831f41fe7041cb38f82224R114-R128
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