(
(let $1 (DataSource '"yt" '"/Root/plato"))
(let $2 '('NativeYtTypeFlags '0))
(let $3 '('StrictSchema '1))
(let $4 '('UniqueKeys '0))
(let $5 (Bool 'true))
(let $6 '('SortDirections '($5 $5)))
(let $7 '('"k1" '"v1"))
(let $8 (DataType 'String))
(let $9 (OptionalType $8))
(let $10 (YtMeta '('CanWrite '1) '('DoesExist '1) '('YqlCompatibleScheme '1) '('InferredScheme '0) '('IsDynamic '0)))
(let $11 '('ChunkCount '1))
(let $12 '('ModifyTime '0))
(let $13 '('Revision '0))
(let $14 (StructType '('"k1" $9) '('"u1" $8) '('"v1" $9)))
(let $15 '('('"_logical_id" '940) '('"_id" '"343efc78-b717e692-4bcc333a-303d3914") '('"_wide_channels" $14)))
(let $16 (DqPhyStage '() (lambda '() (block '(
  (let $23 '@@["StructType";[["k1";["OptionalType";["DataType";"String"]]];["v1";["OptionalType";["DataType";"String"]]];["u1";["DataType";"String"]]]]@@)
  (let $24 (YqlRowSpec $2 $3 $4 '('Type $23) $6 '('SortMembers $7) '('SortedBy $7) '('SortedByTypes '($9 $9))))
  (let $25 (YtStat '('Id '"Input1") '('RecordsCount '5) '('DataSize '"180") $11 $12 $13))
  (let $26 (YtTable '"Input1" $24 $10 $25 '() (Void) (Void) '"/Root/plato"))
  (let $27 '('"k1" '"u1" '"v1"))
  (let $28 (YtReadTable! world $1 '((YtSection '((YtPath $26 $27 (Void) (Void))) '()))))
  (return (FromFlow (DqReadWideWrap $28 '())))
))) $15))
(let $17 (DqCnBroadcast (TDqOutput $16 '0)))
(let $18 (DqPhyStage '($17) (lambda '($29) (block '(
  (let $30 '('Many 'Hashed 'Compact))
  (let $31 (SqueezeToDict (NarrowFlatMap (WideFilter (ToFlow $29) (lambda '($32 $33 $34) (And (Exists $32) (Exists $34)))) (lambda '($35 $36 $37) (IfPresent (FilterNullElements (Just '($35 $37)) '('0 '1)) (lambda '($38) (block '(
    (let $39 (AsStruct '('"k1" $35) '('"u1" $36) '('"v1" $37)))
    (return (Just '($38 $39)))
  ))) (Nothing (OptionalType (TupleType (TupleType $8 $8) $14)))))) (lambda '($40) (Nth $40 '0)) (lambda '($41) (Nth $41 '1)) $30))
  (return (FromFlow (NarrowMap (FlatMap $31 (lambda '($42) (block '(
    (let $43 '@@["StructType";[["k2";["DataType";"String"]];["v2";["DataType";"String"]];["u2";["DataType";"String"]]]]@@)
    (let $44 '('"k2" '"v2"))
    (let $45 (YqlRowSpec $2 $3 $4 '('Type $43) $6 '('SortMembers $44) '('SortedBy $44) '('SortedByTypes '($8 $8))))
    (let $46 (YtStat '('Id '"Input2") '('RecordsCount '3) '('DataSize '"108") $11 $12 $13))
    (let $47 (YtTable '"Input2" $45 $10 $46 '() (Void) (Void) '"/Root/plato"))
    (let $48 '('"k2" '"u2" '"v2"))
    (let $49 (YtReadTable! world $1 '((YtSection '((YtPath $47 $48 (Void) (Void))) '()))))
    (let $50 '('0 '0 '1 '1 '2 '2))
    (let $51 '('"k1" '3 '"u1" '4 '"v1" '5))
    (return (MapJoinCore (DqReadWideWrap $49 '()) $42 'Inner '('0 '2) $7 $50 $51 '('"a.k2" '"a.v2") '('"b.k1" '"b.v1")))
  )))) (lambda '($52 $53 $54 $55 $56 $57) (AsStruct '('"a.k2" $52) '('"a.u2" $53) '('"a.v2" $54) '('"b.k1" $55) '('"b.u1" $56) '('"b.v1" $57))))))
))) '('('"_logical_id" '1001) '('"_id" '"588bf96f-ce94fd7a-2b4392f7-13e17106"))))
(let $19 (DqCnUnionAll (TDqOutput $18 '0)))
(let $20 (DqPhyStage '($19) (lambda '($58) $58) '('('"_logical_id" '1158) '('"_id" '"fae95149-434e4c6-8d4378b3-9c8fc4d4"))))
(let $21 '($16 $18 $20))
(let $22 (DqCnResult (TDqOutput $20 '0) '()))
(return (KqpPhysicalQuery '((KqpPhysicalTx $21 '($22) '() '('('"type" '"generic")))) '((KqpTxResultBinding (ListType (StructType '('"a.k2" $8) '('"a.u2" $8) '('"a.v2" $8) '('"b.k1" $9) '('"b.u1" $8) '('"b.v1" $9))) '0 '0)) '('('"type" '"query"))))
)
