ydb/yql/essentials/tests/s-expressions/suites/Optimizers/ExpandAddRemoveMember.yqls

(
#comment
(let config (DataSource 'config))

(let res_sink (DataSink 'result))
(let func (lambda '() (AsStruct '('a (String '1)) '('b (Int32 '2)))))
(let type (CallableType '() '((StructType '('a (DataType 'String)) '('b (DataType 'Int32))))))
(let call (Callable type func))
(let data (Apply call))
(let data1 (AddMember data 'd (Bool 'True)))
(let data2 (ForceRemoveMember data 'a))
(let data2 (ForceRemoveMember data2 'x))
(let world (Write! world res_sink (Key) '(data1 data2) '('('type))))
(let world (Commit! world res_sink))
(return world)
)