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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:
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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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