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https://issues.apache.org/jira/browse/HIVE-7491?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14072550#comment-14072550
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Gunther Hagleitner commented on HIVE-7491:
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Looks good. +1 assuming tests pass.
> Stats annotation fails to evaluate constant expressions in filter operator
> --------------------------------------------------------------------------
>
> Key: HIVE-7491
> URL: https://issues.apache.org/jira/browse/HIVE-7491
> Project: Hive
> Issue Type: Sub-task
> Components: Query Processor, Statistics
> Affects Versions: 0.14.0
> Reporter: Prasanth J
> Assignee: Prasanth J
> Fix For: 0.13.0
>
> Attachments: HIVE-7491.1.patch
>
>
> HIVE-5369 added stats annotation to operator plan. The filter operator
> evaluates all expression node descriptors and applies rules. It always
> returns 0 for constant expressions like 'select * from table where true' or
> 'select * from table where true=true' etc.
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