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

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

(let res_sink (DataSink 'result))
(let data (AsList (String 'x) (String 'c) (String 'e) (String 'a) (String 'z) (String 'y) (String 'f)))
(let data (Reverse data))
(let data (Skip data (Uint64 '2)))
(let data (Take data (Uint64 '3)))
(let data (OrderedMap data (lambda '(x) '(x x))))
(let data (ToFlow data))
(let data (Collect data))
(let world (Write! world res_sink (Key) data '('('type))))
(let world (Commit! world res_sink))
(return world)
)