Merge branch 'rightlib' into mergelibs-241120-1113

1 files changed, 34 insertions, 0 deletions

diff --git a/yql/essentials/tests/s-expressions/suites/Optimizers/TakeLimitAfterGroup.yql b/yql/essentials/tests/s-expressions/suites/Optimizers/TakeLimitAfterGroup.yql
new file mode 100644
index 0000000000..d0fa6fb1dd
--- /dev/null
+++ b/yql/essentials/tests/s-expressions/suites/Optimizers/TakeLimitAfterGroup.yql
@@ -0,0 +1,34 @@
+(
+(let mr_source (DataSource 'yt 'plato))
+(let x (Read! world mr_source
+    (Key '('table (String 'Input)))
+    (Void) '()))
+(let world (Left! x))
+(let table1 (Right! x))
+
+(let keyExtractor (lambda '(item) (Member item 'key)))
+(let handler (lambda '(stream) (FlatMap stream (lambda '(pair) (block '(
+  (let key (Nth pair '0))
+  (let list (ForwardList (Nth pair '1)))
+  (let s (Struct))
+  (let s (AddMember s 'key key))
+  (let s (AddMember s 'subkey (String '.)))
+  (let f (Fold list (Uint64 '0) (lambda '(item state) (block '(
+      (let value (Coalesce (FromString (Member item 'subkey) 'Uint64) (Uint64 '0)))
+      (return (+ value state))
+  )))))
+  (let s (AddMember s 'value (ToString f)))
+  (return (Just s))
+))))))
+
+(let table2 (PartitionByKey table1 keyExtractor (Void) (Void) handler))
+(let table2 (Take table2 (Uint64 '4)))
+(let table2 (Sort table2 (Bool 'true) (lambda '(item) (Member item 'value))))
+(let res_sink (DataSink 'result))
+(let world (Write! world res_sink
+    (Key)
+    table2 '()))
+
+(let world (Commit! world res_sink))
+(return world)
+)