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https://issues.apache.org/jira/browse/HIVE-497?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12711324#action_12711324
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Ashish Thusoo commented on HIVE-497:
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+1
Am running tests on this and I will check it in once those are done.
> predicate pushdown fails if all columns are not selected
> --------------------------------------------------------
>
> Key: HIVE-497
> URL: https://issues.apache.org/jira/browse/HIVE-497
> Project: Hadoop Hive
> Issue Type: Bug
> Components: Query Processor
> Affects Versions: 0.4.0
> Reporter: Prasad Chakka
> Assignee: Prasad Chakka
> Fix For: 0.4.0
>
> Attachments: hive-497.patch
>
>
> predicate pushdown seems to fail in some scenarios... it is ok if all the
> columns are selected.
> create table ppda(a string, b string);
> select a from ppda where ppda.a > 10; --> fails
> select b from ppda where ppda.a > 10; --> ok
> select * from ppda where ppda.a > 10; --> ok
> select b from appd where appd.b > 10 and appd.a > 20; --> ok
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