Merge branch 'rightlib' into mergelibs-241120-1113

1 files changed, 18 insertions, 0 deletions

diff --git a/yql/essentials/tests/s-expressions/suites/Optimizers/FoldOneItemTuple.yql b/yql/essentials/tests/s-expressions/suites/Optimizers/FoldOneItemTuple.yql
new file mode 100644
index 0000000000..ccada97695
--- /dev/null
+++ b/yql/essentials/tests/s-expressions/suites/Optimizers/FoldOneItemTuple.yql
@@ -0,0 +1,18 @@
+(
+(let config (DataSource 'config))
+(let world (Configure! world config 'PureDataSource 'yt))
+
+(let list (AsList (String 'a) (String 'b) (String 'c)))
+(let s (String '""))
+(let data (Fold list '(s)
+   (lambda '(item state) (block '(
+      (let state (Concat (Nth state '0) item))
+      (return '(state)))))))
+(let res_sink (DataSink 'result))
+(let world (Write! world res_sink
+    (Key)
+    data '()))
+
+(let world (Commit! world res_sink))
+(return world)
+)