Stamatis Zampetakis created HIVE-26626:
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Summary: Cut dependencies between HiveXxPullUpConstantsRule and
HiveReduceExpressionsRule
Key: HIVE-26626
URL: https://issues.apache.org/jira/browse/HIVE-26626
Project: Hive
Issue Type: Task
Components: CBO
Reporter: Stamatis Zampetakis
Assignee: Stamatis Zampetakis
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.
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