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[CALCITE-7320] AggregateProjectMergeRule throws AssertionError when Project maps multiple grouping keys to the same field #4757

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[CALCITE-7320] AggregateProjectMergeRule throws AssertionError when Project maps multiple grouping keys to the same field #4757

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@iwanttobepowerful iwanttobepowerful commented Jan 20, 2026

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iwanttobepowerful commented Jan 20, 2026
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core/src/main/java/org/apache/calcite/rel/rules/AggregateProjectMergeRule.java
}
}

public static @Nullable RelNode apply(RelOptRuleCall call, Aggregate aggregate,
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@iwanttobepowerful iwanttobepowerful Jan 20, 2026 •
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LogicalAggregate(group=[{0, 1}], groups=[[{0, 1}, {1}]], CNT=[COUNT()])
  LogicalProject(subset=[rel#142:RelSubset#5.NONE.[]], DEPTNO=[$1], DEPTNO1=[$1])
    LogicalFilter(subset=[rel#140:RelSubset#4.NONE.[0]], condition=[IS NOT NULL($1)])
      LogicalProject(subset=[rel#138:RelSubset#3.NONE.[0]], EMPNO=[$0], DEPTNO=[$7])
        LogicalTableScan(subset=[rel#136:RelSubset#2.NONE.[0]], table=[[scott, EMP]])

mihaibudiu
mihaibudiu approved these changes Jan 21, 2026
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@mihaibudiu mihaibudiu added the LGTM-will-merge-soon Overall PR looks OK. Only minor things left. label Jan 21, 2026
@iwanttobepowerful
[CALCITE-7320] AggregateProjectMergeRule throws AssertionError when P…
4729662 
…roject maps multiple grouping keys to the same field
@iwanttobepowerful iwanttobepowerful changed the title [CALCITE-7320] Calcite throws a type mismatch error when executing SQL statements that use GROUPING SETS and correlated subqueries [CALCITE-7320] AggregateProjectMergeRule throws AssertionError when Project maps multiple grouping keys to the same field Jan 21, 2026
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sonarqubecloud bot commented Jan 21, 2026

Quality Gate Passed Quality Gate passed

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0 New issues
0 Accepted issues

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100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

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@mihaibudiu mihaibudiu mihaibudiu approved these changes

@NobiGo NobiGo NobiGo approved these changes

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LGTM-will-merge-soon Overall PR looks OK. Only minor things left.

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