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https://issues.apache.org/jira/browse/HIVE-18872?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16422195#comment-16422195
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Ankit Singhal commented on HIVE-18872:
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bq. Could you please add description and repro/testcase for this issue?
I updated the description with the details. The bug affects the push down of
projections during getSplit() path. Let me know if there is already a test case
touches this flow, I can try to reproduce the same with it.
> Projection is not pushed properly when query involves multiple tables
> ---------------------------------------------------------------------
>
> Key: HIVE-18872
> URL: https://issues.apache.org/jira/browse/HIVE-18872
> Project: Hive
> Issue Type: Bug
> Affects Versions: 3.0.0
> Reporter: Ankit Singhal
> Assignee: Ankit Singhal
> Priority: Major
> Fix For: 3.0.0
>
> Attachments: HIVE-18872.patch
>
>
> Projections are not pushed down properly during getSplit() when the query
> involves multiple tables although they are getting properly pushed during
> getRecordReader when the task is working on the split. Due to this , storage
> handler relying on projections for building query while generating input
> splits are not working.
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