Version 1.5
SELECT * FROM Sampling ( ON { table | view | (query) } AS data PARTITION BY { ANY | key } ON { table | view | (query) } AS summary DIMENSION USING ApproxSampleSize (size) [ Seed (seed) ] ) AS alias;
SELECT * FROM Sampling ( ON { table | view | (query) } AS data PARTITION BY { ANY | key } ON { table | view | (query) } AS summary DIMENSION USING ApproxSampleSize (size) [ Seed (seed) ] ) AS alias;