[jira] [Created] (HIVE-24969) Predicates are removed by PPD when left semi join followed by lateral view

["Zhihua Deng (Jira)" <ji...@apache.org>]

Zhihua Deng created HIVE-24969:
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             Summary: Predicates are removed by PPD when left semi join followed by lateral view
                 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


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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