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From "Prasanth Jayachandran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-10799) Refactor the SearchArgumentFactory to remove the dependence on ExprNodeGenericFuncDesc
Date Wed, 22 Jul 2015 00:30:04 GMT

    [ https://issues.apache.org/jira/browse/HIVE-10799?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14636064#comment-14636064
] 

Prasanth Jayachandran commented on HIVE-10799:
----------------------------------------------

PPD on Char types is broken for bloom filters. Char object is not trimmed before inserting
into bloom filter. So when we convert the stats object to string the hashcodes will not match.
We are hitting this here https://issues.apache.org/jira/browse/HIVE-11312?focusedCommentId=14634349&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14634349

Would it make sense to add CHAR to predicate types?

> Refactor the SearchArgumentFactory to remove the dependence on ExprNodeGenericFuncDesc
> --------------------------------------------------------------------------------------
>
>                 Key: HIVE-10799
>                 URL: https://issues.apache.org/jira/browse/HIVE-10799
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Owen O'Malley
>            Assignee: Owen O'Malley
>         Attachments: HIVE-10799.patch, HIVE-10799.patch, HIVE-10799.patch, HIVE-10799.patch,
HIVE-10799.patch
>
>
> SearchArgumentFactory and SearchArgumentImpl are high level and shouldn't depend on the
internals of Hive's AST model.



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