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https://issues.apache.org/jira/browse/CALCITE-5411?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17705816#comment-17705816
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Benchao Li commented on CALCITE-5411:
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Exactly, thanks for your comment [~julianhyde] .
> Update Spark Dialect to support ROLLUP & CUBE aggregate functions.
> ------------------------------------------------------------------
>
> Key: CALCITE-5411
> URL: https://issues.apache.org/jira/browse/CALCITE-5411
> Project: Calcite
> Issue Type: Task
> Affects Versions: 1.32.0
> Reporter: Leonid Chistov
> Assignee: Leonid Chistov
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.35.0
>
> Time Spent: 50m
> Remaining Estimate: 0h
>
> Support for standard
> {code:java}
> GROUP BY { group_expression |
> { ROLLUP | CUBE | GROUPING SETS }
> (grouping_set [ , ...]) } [ , ... ] {code}
> syntax was added to Spark several releases ago in addition to the previously
> supported non-standard syntax
> {code:java}
> GROUP BY group_expression [ , group_expression [ , ... ] ] [ WITH { ROLLUP |
> CUBE } ] {code}
> See:
> [https://spark.apache.org/docs/latest/sql-ref-syntax-qry-select-groupby.html]
> We need to update *SparkSqlDialect* implementation to reflect these changes
> in supported SQL syntax.
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