(
(let $1 (DqPhyStage '() (lambda '() (block '(
  (let $6 '@@["StructType";[["key";["DataType";"String"]];["subkey";["DataType";"String"]];["value";["DataType";"String"]]]]@@)
  (let $7 (YqlRowSpec '('NativeYtTypeFlags '0) '('StrictSchema '1) '('UniqueKeys '0) '('Type $6)))
  (let $8 (YtMeta '('CanWrite '1) '('DoesExist '1) '('YqlCompatibleScheme '1) '('InferredScheme '0) '('IsDynamic '0) '('Attrs '('('"native_strict_schema" '"false")))))
  (let $9 (YtStat '('Id '"Input") '('RecordsCount '"4") '('DataSize '"166") '('ChunkCount '1) '('ModifyTime '0) '('Revision '0)))
  (let $10 (YtTable '"Input" $7 $8 $9 '() (Void) (Void) '"/Root/plato"))
  (let $11 (YtReadTable! world (DataSource '"yt" '"/Root/plato") '((YtSection '((YtPath $10 '('"key" '"value") (Void) (Void))) '()))))
  (return (FromFlow (NarrowMap (DqReadWideWrap $11 '()) (lambda '($12 $13) (block '(
    (let $14 (Uint32 '1))
    (let $15 (Substring $12 $14 $14))
    (let $16 (Substring $13 $14 (Nothing (OptionalType (DataType 'Uint32)))))
    (return (AsStruct '('"char" $15) '('"tail" $16)))
  ))))))
))) '('('"_logical_id" '649) '('"_id" '"76d86c0d-4ede7ba0-ff2ad11b-57702626"))))
(let $2 (DqCnUnionAll (TDqOutput $1 '0)))
(let $3 (DqPhyStage '($2) (lambda '($17) $17) '('('"_logical_id" '695) '('"_id" '"80e4d61a-735b4209-59c3979-69893044"))))
(let $4 (DqCnResult (TDqOutput $3 '0) '('"char" '"tail")))
(let $5 (DataType 'String))
(return (KqpPhysicalQuery '((KqpPhysicalTx '($1 $3) '($4) '() '('('"type" '"generic")))) '((KqpTxResultBinding (ListType (StructType '('"char" $5) '('"tail" $5))) '0 '0)) '('('"type" '"query"))))
)
