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Posted to issues@hive.apache.org by "Pengcheng Xiong (JIRA)" <ji...@apache.org> on 2015/04/15 22:33:59 UTC
[jira] [Commented] (HIVE-10344) CBO (Calcite Return Path): Use
newInstance to create ExprNodeGenericFuncDesc rather than construction
function
[ https://issues.apache.org/jira/browse/HIVE-10344?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14496884#comment-14496884 ]
Pengcheng Xiong commented on HIVE-10344:
----------------------------------------
[~jpullokkaran], after this patch, the cbo_simple_select got passed when return path is turned on.
> CBO (Calcite Return Path): Use newInstance to create ExprNodeGenericFuncDesc rather than construction function
> --------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-10344
> URL: https://issues.apache.org/jira/browse/HIVE-10344
> Project: Hive
> Issue Type: Sub-task
> Components: CBO
> Reporter: Pengcheng Xiong
> Assignee: Pengcheng Xiong
> Fix For: 1.2.0
>
> Attachments: HIVE-10344.01.patch
>
>
> ExprNodeGenericFuncDesc is now created using a constructer. It skips the initialization step "genericUDF.initializeAndFoldConstants" compared with using newInstance method. If the initialization step is skipped, some configuration parameters are not included in the serialization which generates wrong results/errors.
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