Cmdlets for HDFS

Build 21.0.7930

GroupBy Parameter (Select-HDFS Cmdlet)

A comma-separated list of columns that the result set will be grouped by.


Select-HDFS -GroupBy string


The comma-separated list of columns to aggregate the values of and execute a summary function over. Specify the summary function in the Columns parameter with the same syntax you would use for an SQL statement. For example:

Select-HDFS -Connection $conn -Table Files -Columns @("ChildrenNum","SUM(Length)") -GroupBy "ChildrenNum" -Where "FileId = '119116'"

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Build 21.0.7930