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Posted to issues@hive.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2022/05/18 13:08:00 UTC

[jira] [Updated] (HIVE-26238) Decouple sort filter predicates optimization from digest normalization in CBO

     [ https://issues.apache.org/jira/browse/HIVE-26238?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated HIVE-26238:
----------------------------------
    Labels: pull-request-available  (was: )

> Decouple sort filter predicates optimization from digest normalization in CBO
> -----------------------------------------------------------------------------
>
>                 Key: HIVE-26238
>                 URL: https://issues.apache.org/jira/browse/HIVE-26238
>             Project: Hive
>          Issue Type: Improvement
>          Components: CBO
>    Affects Versions: 4.0.0-alpha-1
>            Reporter: Stamatis Zampetakis
>            Assignee: Stamatis Zampetakis
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> HIVE-21857 introduced an optimization for ordering predicates inside a filter based on a cost function. After HIVE-23456, this optimization can run only if the the digest normalization (introduced in CALCITE-2450) in CBO is disabled (via {{calcite.enable.rexnode.digest.normalize}}).
> The goal of this issue is to decouple the sort predicate optimization from digest normalization. After the changes here the optimization shouldn't be affected by the value of {{calcite.enable.rexnode.digest.normalize}} property.



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