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(
(let config (DataSource 'config))
(let world (Configure! world config 'PureDataSource 'yt))
(let list1 (AsList
'((Int32 '1) (String 'A))
'((Int32 '7) (String 'B))
'((Int32 '4) (String 'C))
'((Int32 '4) (String 'D))
))
(let list2 (AsList
'((Int32 '9) (String 'Z))
'((Int32 '4) (String 'Y))
'((Int32 '3) (String 'X))
'((Int32 '4) (String 'W))
'((Int32 '8) (String 'V))
))
(let keyExtractor (lambda '(item) (Nth item '0)))
(let joinInner (Join list1 list2 keyExtractor keyExtractor 'Inner))
(let joinLeft (Join list1 list2 keyExtractor keyExtractor 'Left))
(let joinRight (Join list1 list2 keyExtractor keyExtractor 'Right))
(let joinFull (Join list1 list2 keyExtractor keyExtractor 'Full))
(let res_sink (DataSink 'result))
(let world (Write! world res_sink (Key) joinInner '()))
(let world (Write! world res_sink (Key) joinLeft '()))
(let world (Write! world res_sink (Key) joinRight '()))
(let world (Write! world res_sink (Key) joinFull '()))
(let world (Commit! world res_sink))
(return world)
)
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