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(
(let sleep (Udf 'SimpleUdf.Sleep))
(let 01sec (Uint64 '100000))
(let 05sec (Uint64 '500000))
(let 03sec (Uint64 '300000))
#comment
(let mr_source (DataSource 'yt 'plato))
(let x (Read! world mr_source (Key '('table (String 'Input))) '('key 'subkey 'value) '()))
(let world (Left! x))
(let table1 (Right! x))
(let table1map (Map table1 (lambda '(item) (block '(
(let data1 (Apply sleep (+ 05sec 01sec)))
(let s (Struct))
(let s (AddMember s 'key (Member item 'key)))
(let s (AddMember s 'subkey (String '1)))
(let s (AddMember s 'value (ToString data1)))
(return s)
)))))
(let table2map (Map table1 (lambda '(item) (block '(
(let data1 (Apply sleep (+ 03sec 03sec)))
(let s (Struct))
(let s (AddMember s 'key (Member item 'key)))
(let s (AddMember s 'subkey (String '2)))
(let s (AddMember s 'value (ToString data1)))
(return s)
)))))
(let mr_sink (DataSink 'yt 'plato))
(let res_sink (DataSink 'result))
(let world (Write! world mr_sink (Key '('table (String 'Output))) table1map '()))
(let world (Write! world res_sink (Key) table2map '()))
(let world (Commit! world mr_sink))
(let world (Commit! world res_sink))
(return world)
)
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