From 7973302a9be4278bb1796bcf11c7d42efece1847 Mon Sep 17 00:00:00 2001
From: Denny Crane <denis.zhuravlov@gmail.com>
Date: Mon, 29 Apr 2024 15:50:03 -0300
Subject: [PATCH] add tests for #47217, #55965

---
 .../03142_window_function_limit_by.reference  |  3 ++
 .../03142_window_function_limit_by.sql        | 41 +++++++++++++++++++
 2 files changed, 44 insertions(+)
 create mode 100644 tests/queries/0_stateless/03142_window_function_limit_by.reference
 create mode 100644 tests/queries/0_stateless/03142_window_function_limit_by.sql

diff --git a/tests/queries/0_stateless/03142_window_function_limit_by.reference b/tests/queries/0_stateless/03142_window_function_limit_by.reference
new file mode 100644
index 00000000000..0acdfb509fe
--- /dev/null
+++ b/tests/queries/0_stateless/03142_window_function_limit_by.reference
@@ -0,0 +1,3 @@
+a	0.5	4
+a	1
+b	1
diff --git a/tests/queries/0_stateless/03142_window_function_limit_by.sql b/tests/queries/0_stateless/03142_window_function_limit_by.sql
new file mode 100644
index 00000000000..44dd890db41
--- /dev/null
+++ b/tests/queries/0_stateless/03142_window_function_limit_by.sql
@@ -0,0 +1,41 @@
+SET allow_experimental_analyzer = 1;
+
+
+-- https://github.com/ClickHouse/ClickHouse/issues/55965
+
+CREATE TABLE error_win_func
+(
+    `k` String,
+    `in` UInt64,
+    `out` UInt64
+) 
+ENGINE = MergeTree
+ORDER BY k AS
+SELECT * from VALUES (('a', 2, 4), ('a', 4, 2), ('a', 6, 3), ('a', 8, 4));
+
+SELECT
+    k,
+    in / out AS ratio,
+    count(*) OVER w AS count_rows_w    
+FROM error_win_func
+WINDOW
+    w AS (ROWS BETWEEN CURRENT ROW AND 3 FOLLOWING)
+LIMIT 1 BY
+    k;
+
+DROP TABLE error_win_func;
+
+-- https://github.com/ClickHouse/ClickHouse/issues/47217
+
+CREATE TABLE t(n String, st String) ENGINE = Memory as
+select * from values(('a', 'x'), ('b', 'y'), ('c', 'z'));
+
+SELECT
+  n as m,
+  count() OVER (PARTITION BY m) cnt
+FROM t
+WHERE st IN ('x', 'y')
+LIMIT 1 BY m;
+
+DROP TABLE t;
+