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https://issues.apache.org/jira/browse/CALCITE-1782?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16018525#comment-16018525
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Julian Hyde commented on CALCITE-1782:
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Reviewing now. Fixing the comments you missed. Sigh.
> AggregateExpandDistinctAggregatesRule should work on Aggregate instead of
> LogicalAggregate
> ------------------------------------------------------------------------------------------
>
> Key: CALCITE-1782
> URL: https://issues.apache.org/jira/browse/CALCITE-1782
> Project: Calcite
> Issue Type: Bug
> Reporter: Haohui Mai
> Assignee: Haohui Mai
>
> {{AggregateExpandDistinctAggregatesRule}} expects the operator to be a
> subclass of {{LogicalAggregate}}:
> {noformat}
> public AggregateExpandDistinctAggregatesRule(
> Class<? extends LogicalAggregate> clazz,
> RelFactories.JoinFactory joinFactory) {
> this(clazz, false, RelBuilder.proto(Contexts.of(joinFactory)));
> }
> {noformat}
> However, {{LogicalAggregate}} is a final class which cannot be inherited.
> This jira proposes to change the signature from {{LogicalAggregate}} to
> {{Aggregate}}.
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