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https://issues.apache.org/jira/browse/CALCITE-1437?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julian Hyde resolved CALCITE-1437.
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Resolution: Duplicate
Fix Version/s: 1.11.0
> AggregateNode NPE for aggregators other than SUM/COUNT
> ------------------------------------------------------
>
> Key: CALCITE-1437
> URL: https://issues.apache.org/jira/browse/CALCITE-1437
> Project: Calcite
> Issue Type: Bug
> Components: core
> Reporter: Gian Merlino
> Assignee: Julian Hyde
> Fix For: 1.11.0
>
>
> AggregateNode.getAccumulator does this for any aggregation other than COUNT
> or SUM:
> final AggImpState agg = new AggImpState(0, call, false);
> int stateSize = agg.state.size();
> This NPEs because "state" is null on freshly created AggImpState instances.
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