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https://issues.apache.org/jira/browse/HIVE-6959?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ashutosh Chauhan updated HIVE-6959:
-----------------------------------
Status: Open (was: Patch Available)
Among failed test cases, many changes in .q.out looks correct where constants
got folded. However, in some cases there is an additional change which suggests
queries didnt vectorize for those cases. Seems like those needs investigation.
> Remove vectorization related constant expression folding code once Constant
> propagation optimizer for Hive is committed
> -----------------------------------------------------------------------------------------------------------------------
>
> Key: HIVE-6959
> URL: https://issues.apache.org/jira/browse/HIVE-6959
> Project: Hive
> Issue Type: Bug
> Reporter: Hari Sankar Sivarama Subramaniyan
> Assignee: Hari Sankar Sivarama Subramaniyan
> Attachments: HIVE-6959.1.patch
>
>
> HIVE-5771 covers Constant propagation optimizer for Hive. Now that HIVE-5771
> is committed, we should remove any vectorization related code which
> duplicates this feature. For example, a fn to be cleaned is
> VectorizarionContext::foldConstantsForUnaryExprs(). In addition to this
> change, constant propagation should kick in when vectorization is enabled.
> i.e. we need to lift the HIVE_VECTORIZATION_ENABLED restriction inside
> ConstantPropagate::transform().
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