RelationalGroupedDataset.Sum(String[]) Method
Definition
Important
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Compute the sum for each numeric columns for each group.
public Microsoft.Spark.Sql.DataFrame Sum (params string[] colNames);member this.Sum : string[] -> Microsoft.Spark.Sql.DataFramePublic Function Sum (ParamArray colNames As String()) As DataFrameParameters
- colNames
- String[]
Name of columns to compute sum on
Returns
New DataFrame object with sum applied