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Posted to issues@hive.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2022/09/02 03:17:00 UTC
[jira] [Work logged] (HIVE-24969) Predicates may be removed when decorrelating subqueries with lateral
[ https://issues.apache.org/jira/browse/HIVE-24969?focusedWorklogId=805669&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-805669 ]
ASF GitHub Bot logged work on HIVE-24969:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 02/Sep/22 03:16
Start Date: 02/Sep/22 03:16
Worklog Time Spent: 10m
Work Description: sonarcloud[bot] commented on PR #3018:
URL: https://github.com/apache/hive/pull/3018#issuecomment-1235022602
Kudos, SonarCloud Quality Gate passed! [](https://sonarcloud.io/dashboard?id=apache_hive&pullRequest=3018)
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[](https://sonarcloud.io/project/issues?id=apache_hive&pullRequest=3018&resolved=false&types=CODE_SMELL) [](https://sonarcloud.io/project/issues?id=apache_hive&pullRequest=3018&resolved=false&types=CODE_SMELL) [3 Code Smells](https://sonarcloud.io/project/issues?id=apache_hive&pullRequest=3018&resolved=false&types=CODE_SMELL)
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Issue Time Tracking
-------------------
Worklog Id: (was: 805669)
Time Spent: 3.5h (was: 3h 20m)
> Predicates may be removed when decorrelating subqueries with lateral
> --------------------------------------------------------------------
>
> Key: HIVE-24969
> URL: https://issues.apache.org/jira/browse/HIVE-24969
> Project: Hive
> Issue Type: Bug
> Components: Logical Optimizer
> Reporter: Zhihua Deng
> Assignee: Zhihua Deng
> Priority: Major
> Labels: pull-request-available
> Time Spent: 3.5h
> Remaining Estimate: 0h
>
> Step to reproduce：
> {code:java}
> select count(distinct logItem.triggerId)
> from service_stat_log LATERAL VIEW explode(logItems) LogItemTable AS logItem
> where logItem.dsp in ('delivery', 'ocpa')
> and logItem.iswin = true
> and logItem.adid in (
> select distinct adId
> from ad_info
> where subAccountId in (16010, 14863)); {code}
> For predicates _logItem.dsp in ('delivery', 'ocpa')_ and _logItem.iswin = true_ are removed when doing ppd: JOIN -> RS -> LVJ. The JOIN has candicates: logitem -> [logItem.dsp in ('delivery', 'ocpa'), logItem.iswin = true]，when pushing them to the RS followed by LVJ, none of them are pushed, the candicates of logitem are removed finally by default, which cause to the wrong result.
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