(
(let $1 (DataType 'Float))
(let $2 (DataType 'Double))
(let $3 (OptionalType $2))
(let $4 (OptionalType $1))
(let $5 (DqPhyStage '() (lambda '() (block '(
  (let $10 '@@["StructType";[["key";["DataType";"String"]];["subkey";["DataType";"String"]];["value";["DataType";"String"]]]]@@)
  (let $11 (YqlRowSpec '('NativeYtTypeFlags '0) '('StrictSchema '1) '('UniqueKeys '0) '('Type $10)))
  (let $12 (YtMeta '('CanWrite '1) '('DoesExist '1) '('YqlCompatibleScheme '1) '('InferredScheme '0) '('IsDynamic '0) '('Attrs '('('"native_strict_schema" '"false")))))
  (let $13 (YtStat '('Id '"Input") '('RecordsCount '"4") '('DataSize '"166") '('ChunkCount '1) '('ModifyTime '0) '('Revision '0)))
  (let $14 (YtTable '"Input" $11 $12 $13 '() (Void) (Void) '"/Root/plato"))
  (let $15 (YtReadTable! world (DataSource '"yt" '"/Root/plato") '((YtSection '((YtPath $14 '() (Void) (Void))) '()))))
  (return (FromFlow (NarrowMap (DqReadWideWrap $15 '()) (lambda '() (block '(
    (let $16 (Nothing $3))
    (return (AsStruct '('"column0" (SafeCast (Double '"2.71") $1)) '('"column1" (Double '"3.14")) '('"column2" $16) '('"column3" $16) '('"column4" (Nothing $4)) '('"column5" $16) '('"column6" (Convert (Int32 '"3") $2)) '('"column7" (Convert (Int32 '"4") $2)) '('"column8" (String '"end"))))
  ))))))
))) '('('"_logical_id" '1371) '('"_id" '"4e0eaa77-27edcc5e-411516c4-6953cfe9"))))
(let $6 (DqCnUnionAll (TDqOutput $5 '0)))
(let $7 (DqPhyStage '($6) (lambda '($17) $17) '('('"_logical_id" '1409) '('"_id" '"48ae730b-833719ec-80c11405-cdb971ed"))))
(let $8 '('"column0" '"column1" '"column2" '"column3" '"column4" '"column5" '"column6" '"column7" '"column8"))
(let $9 (DqCnResult (TDqOutput $7 '0) $8))
(return (KqpPhysicalQuery '((KqpPhysicalTx '($5 $7) '($9) '() '('('"type" '"generic")))) '((KqpTxResultBinding (ListType (StructType '('"column0" $1) '('"column1" $2) '('"column2" $3) '('"column3" $3) '('"column4" $4) '('"column5" $3) '('"column6" $2) '('"column7" $2) '('"column8" (DataType 'String)))) '0 '0)) '('('"type" '"query"))))
)
