Version 1.6
SELECT * FROM Sampling ( ON { table | view | (query) } AS InputTable PARTITION BY { ANY | key } ON { table | view | (query) } AS SummaryTable DIMENSION USING ApproxSampleSize (size) [ Seed (seed) ] ) AS alias;
SELECT * FROM Sampling ( ON { table | view | (query) } AS InputTable PARTITION BY { ANY | key } ON { table | view | (query) } AS SummaryTable DIMENSION USING ApproxSampleSize (size) [ Seed (seed) ] ) AS alias;