(
(let $1 (DataType 'String))
(let $2 (OptionalType $1))
(let $3 (DqPhyStage '() (lambda '() (block '(
  (let $7 '@@["StructType";[["key";["OptionalType";["DataType";"String"]]];["subkey";["OptionalType";["DataType";"String"]]];["value";["DataType";"String"]]]]@@)
  (let $8 (Bool 'true))
  (let $9 '('"key" '"subkey"))
  (let $10 (YqlRowSpec '('NativeYtTypeFlags '0) '('StrictSchema '1) '('UniqueKeys '0) '('Type $7) '('SortDirections '($8 $8)) '('SortMembers $9) '('SortedBy $9) '('SortedByTypes '($2 $2))))
  (let $11 (YtMeta '('CanWrite '1) '('DoesExist '1) '('YqlCompatibleScheme '1) '('InferredScheme '0) '('IsDynamic '0) '('Attrs '('('"native_strict_schema" '"false")))))
  (let $12 (YtStat '('Id '"Input") '('RecordsCount '"6") '('DataSize '"238") '('ChunkCount '1) '('ModifyTime '0) '('Revision '0)))
  (let $13 (YtTable '"Input" $10 $11 $12 '() (Void) (Void) '"/Root/plato"))
  (let $14 '('"key" '"subkey" '"value"))
  (let $15 (YtReadTable! world (DataSource '"yt" '"/Root/plato") '((YtSection '((YtPath $13 $14 (Void) (Void))) '('('"unordered"))))))
  (return (FromFlow (NarrowMap (WideFilter (DqReadWideWrap $15 '()) (lambda '($16 $17 $18) (Not (Exists $16)))) (lambda '($19 $20 $21) (AsStruct '('"key" $19) '('"subkey" $20) '('"value" $21))))))
))) '('('"_logical_id" '784) '('"_id" '"7b3f010d-2b0146d1-74c4417a-dbeb176d"))))
(let $4 (DqCnUnionAll (TDqOutput $3 '0)))
(let $5 (DqPhyStage '($4) (lambda '($22) $22) '('('"_logical_id" '826) '('"_id" '"79b9d8c4-d4753248-8bc1de42-dca072b8"))))
(let $6 (DqCnResult (TDqOutput $5 '0) '()))
(return (KqpPhysicalQuery '((KqpPhysicalTx '($3 $5) '($6) '() '('('"type" '"generic")))) '((KqpTxResultBinding (ListType (StructType '('"key" $2) '('"subkey" $2) '('"value" $1))) '0 '0)) '('('"type" '"query"))))
)
