[jira] [Created] (HIVE-26627) Remove HiveRelBuilder.aggregateCall override and refactor callers to use existing public methods

["Stamatis Zampetakis (Jira)" <ji...@apache.org>]

Stamatis Zampetakis created HIVE-26627:
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             Summary: Remove HiveRelBuilder.aggregateCall override and refactor callers to use existing public methods
                 Key: HIVE-26627
                 URL: https://issues.apache.org/jira/browse/HIVE-26627
             Project: Hive
          Issue Type: Task
          Components: CBO
            Reporter: Stamatis Zampetakis
            Assignee: Stamatis Zampetakis


The HiveRelBuilder overrides [aggregateCall|https://github.com/apache/hive/blob/8c3567ea8e423b202cde370f4d3fb401bcc23e46/ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/HiveRelBuilder.java#L246] from its superclass simply to expose and use it in HiveRewriteToDataSketchesRules. 

However, there is no real need to override this method since we can achieve the same outcome by using existing methods in RelBuilder which are easier to use and understand. Furthermore it is safer to depend on public APIs since are more stable in general.



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