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(
(import aggregate_module '"/lib/yql/aggregate.yql")
(import window_module '"/lib/yql/window.yql")
(let world (block '(
(let x (Read! world (DataSource '"yt" '"plato") (MrTableConcat (Key '('table (String '"Input")))) '('"key" '"subkey") '()))
(let world (Left! x))
(let table0 (Right! x))
(let output (block '(
(let select (block '(
(let core (EquiJoin '(table0 '"a") '((block '(
(let select (block '(
(let core table0)
(let core (FlatMap core (lambda '(row) (block '(
(let res (AsStruct '('"key" (Member row '"key")) '('"subkey" ("Concat" (Member row '"subkey") (String '"b")))))
(let res (AsList res))
(return res)
)))))
(return core)
)))
(return select)
)) '"b") '('Inner '"a" '"b" '('"a" '"key") '('"b" '"key") '()) '()))
(let core (FlatMap core (lambda '(row) (block '(
(let res (AsStruct '('"k1" (SqlColumn row '"key" '"a")) '('"a.subkey" (SqlColumn row '"subkey" '"a")) '('"b.subkey" (SqlColumn row '"subkey" '"b"))))
(let res (AsList res))
(return res)
)))))
(return core)
)))
(return select)
)))
(let world (block '(
(let result_sink (DataSink 'result))
(let world (Write! world result_sink (Key) output '('('type) '('autoref) '('columns '('"k1" '"a.subkey" '"b.subkey")))))
(return (Commit! world result_sink))
)))
(return world)
)))
(let world (block '(
(let plato_sink (DataSink '"yt" '"plato"))
(let world (Commit! world plato_sink))
(return world)
)))
(return world)
)
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