(
(let $1 '('"b"))
(let $2 (StructType '('"b" (OptionalType (DataType 'Uint64)))))
(let $3 '('('"_logical_id" '539) '('"_id" '"964f456e-cd568fb6-2f97e43-8efdd7a") '('"_wide_channels" $2)))
(let $4 (DqPhyStage '() (lambda '() (block '(
  (let $8 '@@["StructType";[["a";["OptionalType";["DataType";"String"]]];["b";["OptionalType";["DataType";"Uint64"]]];["c";["OptionalType";["DataType";"Int64"]]];["d";["OptionalType";["DataType";"Int64"]]]]]@@)
  (let $9 (YqlRowSpec '('NativeYtTypeFlags '0) '('StrictSchema '1) '('UniqueKeys '0) '('Type $8)))
  (let $10 (YtMeta '('CanWrite '1) '('DoesExist '1) '('YqlCompatibleScheme '1) '('InferredScheme '0) '('IsDynamic '0) '('Attrs '('('"native_strict_schema" 'false)))))
  (let $11 (YtStat '('Id '"Input") '('RecordsCount '"8") '('DataSize '"296") '('ChunkCount '1) '('ModifyTime '0) '('Revision '0)))
  (let $12 (YtTable '"Input" $9 $10 $11 '() (Void) (Void) '"/Root/plato"))
  (let $13 (YtReadTable! world (DataSource '"yt" '"/Root/plato") '((YtSection '((YtPath $12 $1 (Void) (Void))) '()))))
  (return (FromFlow (WideSort (DqReadWideWrap $13 '()) '('('0 (Bool 'false))))))
))) $3))
(let $5 (DqCnMerge (TDqOutput $4 '0) '('('0 '"Desc"))))
(let $6 (DqPhyStage '($5) (lambda '($14) (FromFlow (NarrowMap (ToFlow $14) (lambda '($15) (AsStruct '('"b" $15)))))) '('('"_logical_id" '551) '('"_id" '"26488b67-4abca83c-402f1971-924e9c25"))))
(let $7 (DqCnResult (TDqOutput $6 '0) $1))
(return (KqpPhysicalQuery '((KqpPhysicalTx '($4 $6) '($7) '() '('('"type" '"generic")))) '((KqpTxResultBinding (ListType $2) '0 '0)) '('('"type" '"query"))))
)
