SELECT * FROM Unpack ( ON { table | view | (query) } USING TargetColumn ('target_column') OutputColumns ('output_column' [,...]) OutputDataTypes ('datatype' [,...]) [ Delimiter ('delimiter') ] [ ColumnLength ('column_length' [,...] ) ] [ Regex ('regular_expression') ] [ RegexSet ('group_number') ] [ IgnoreInvalid ({'true'|'t'|'yes'|'y'|'1'|'false'|'f'|'no'|'n'|'0'}) ] [ Accumulate ({ 'accumulate_column' | accumulate_column_range }[,...]) ] ) AS alias;