[HIVE-26626] Cut dependencies between HiveXxPullUpConstantsRule and HiveReduceExpressionsRule

• Type: Task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.0.0-alpha-2
• Component/s: CBO
• Labels: pull-request-available
• Target Version/s: 4.0.0-alpha-2
• Assignee: Stamatis Zampetakis
• Reporter: Stamatis Zampetakis
• Created: 12/Oct/22 12:49
• Updated: 16/Nov/22 13:50
• Resolved: 17/Oct/22 08:00

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.

Issue Links

• links to: GitHub Pull Request #3665