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https://issues.apache.org/jira/browse/CALCITE-3041?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16830814#comment-16830814
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Danny Chan commented on CALCITE-3041:
-------------------------------------
[~hyuan] I would like to take this.
> Query runs endless when setImportance to 0
> ------------------------------------------
>
> Key: CALCITE-3041
> URL: https://issues.apache.org/jira/browse/CALCITE-3041
> Project: Calcite
> Issue Type: Bug
> Components: core
> Reporter: Haisheng Yuan
> Assignee: Danny Chan
> Priority: Major
>
> Make the following changes:
> {code:java}
> --- a/core/src/main/java/org/apache/calcite/rel/rules/AggregateRemoveRule.java
> +++ b/core/src/main/java/org/apache/calcite/rel/rules/AggregateRemoveRule.java
> @@ -123,6 +123,7 @@ public void onMatch(RelOptRuleCall call) {
> // aggregate functions, add a project for the same effect.
>
> relBuilder.project(relBuilder.fields(aggregate.getGroupSet().asList()));
> }
> + call.getPlanner().setImportance(aggregate, 0.0);
> call.transformTo(relBuilder.build());
> }
> }
> {code}
> The query in {{JdbcTest.testGroupBy1Max1}} will run endless.
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