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duan xiong commented on CALCITE-4661:
-------------------------------------
Examples of ordered-set aggregate functions are {{mode}}. See [PostgreSQL
doc|https://www.postgresql.org/docs/9.5/static/functions-aggregate.html#FUNCTIONS-ORDEREDSET-TABLE].
> Add MODE aggregate functions
> ----------------------------
>
> Key: CALCITE-4661
> URL: https://issues.apache.org/jira/browse/CALCITE-4661
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: duan xiong
> Assignee: duan xiong
> Priority: Major
>
> Add MODE functions in the operator table which returns the most frequent
> input value (arbitrarily choosing the first one if there are multiple
> equally-frequent results)
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