Stamatis Zampetakis created HIVE-26238:
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Summary: 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
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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