CreateQuery rng (children 3) Identifier rng Columns definition (children 1) ExpressionList (children 5) ColumnDeclaration user_id_raw (children 1) DataType UInt64 ColumnDeclaration device_id_raw (children 1) DataType UInt64 ColumnDeclaration domain_raw (children 1) DataType UInt64 ColumnDeclaration bytes_raw (children 1) DataType UInt64 ColumnDeclaration duration_raw (children 1) DataType UInt64 Storage definition (children 1) Function GenerateRandom (children 1) ExpressionList (children 1) Literal UInt64_1024