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

(
(let config (DataSource 'config))

(let res_sink (DataSink 'result))
(let optBool (SafeCast (/ (Int32 '1) (Int32 '0)) (OptionalType (DataType 'Bool))))
(let data (Coalesce (Not optBool) (Bool 'false)))
(let world (Write! world res_sink (Key) data '('('type))))
(let world (Commit! world res_sink))
(return world)
)