Variance

Returns the population variance of the values in each group: how far the values are spread from their mean.

Numeric Variance(AggregationArray valuesArray)

Groups the synonyms by source word and computes Variance of the target word ids.

SELECT
    SourceWordId,
    Variance(TargetWordId) as Result
FROM
    WordList:Synonym
GROUP BY
    SourceWordId

• Group By
• Aggregate Functions