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https://issues.apache.org/jira/browse/HIVE-24232?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jesus Camacho Rodriguez reassigned HIVE-24232:
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> Incorrect translation of rollup expression from Calcite
> -------------------------------------------------------
>
> Key: HIVE-24232
> URL: https://issues.apache.org/jira/browse/HIVE-24232
> Project: Hive
> Issue Type: Bug
> Components: CBO
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Priority: Major
>
> In Calcite, it is not necessary that the columns in the group set are in the
> same order as the rollup. For instance, this is the Calcite representation of
> a rollup for a given query:
> {code}
> HiveAggregate(group=[{1, 6, 7}], groups=[[{1, 6, 7}, {1, 7}, {1}, {}]],
> agg#0=[sum($12)], agg#1=[count($12)], agg#2=[sum($4)], agg#3=[count($4)],
> agg#4=[sum($15)], agg#5=[count($15)])
> {code}
> When we generate the Hive plan from the Calcite operator, we make such
> assumption incorrectly.
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