[HIVE-26626] Cut dependencies between HiveXxPullUpConstantsRule and HiveReduceExpressionsRule - ASF JIRA

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Details

Type: Task
Status: Closed
Priority: Major
Resolution: Fixed
Affects Version/s: None
Fix Version/s: 4.0.0-alpha-2
Component/s: CBO
Labels:
- pull-request-available

Target Version/s:

4.0.0-alpha-2

Description

HiveSortPullUpConstantsRule and HiveUnionPullUpConstantsRule are calling [predicateConstants|https://github.com/apache/hive/blob/8c3567ea8e423b202cde370f4d3fb401bcc23e46/ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/rules/HiveSortPullUpConstantsRule.java#L128
] method from HiveReduceExpressionsRule.

The method in HiveReduceExpressionsRule is deprecated and creates unnecessary dependencies among the rules. It can be replaced by a direct call to RexUtil.predicateConstants; the two methods are functionally equivalent.