TD_SimpleImputeTransform syntax depends on whether the TD_SimpleImputeFit call that output FitTable omitted or specified PartitionColumn.
TD_SimpleImputeFit Call Omitted PartitionColumn
SELECT * FROM TD_SimpleImputeTransform ( ON { table | view | (query) } AS InputTable PARTITION BY ANY ON { table | view | (query) } AS FitTable DIMENSION ) AS alias;
TD_SimpleImputeFit Call Specified PartitionColumn
SELECT * FROM TD_SimpleImputeTransform ( ON { table | view | (query) } AS InputTable PARTITION BY partition_column ON { table | view | (query) } AS FitTable DIMENSION PARTITION BY partition_column ) AS alias;