From e817d814bfbaa30d59a51aa9e0a9400d6f146630 Mon Sep 17 00:00:00 2001
From: Alexey Milovidov <milovidov@clickhouse.com>
Date: Mon, 21 Oct 2024 22:45:39 +0200
Subject: [PATCH] Add a test

---
 .../0_stateless/03254_merge_source_parts.reference        | 1 +
 tests/queries/0_stateless/03254_merge_source_parts.sql    | 8 ++++++++
 2 files changed, 9 insertions(+)
 create mode 100644 tests/queries/0_stateless/03254_merge_source_parts.reference
 create mode 100644 tests/queries/0_stateless/03254_merge_source_parts.sql

diff --git a/tests/queries/0_stateless/03254_merge_source_parts.reference b/tests/queries/0_stateless/03254_merge_source_parts.reference
new file mode 100644
index 00000000000..629479b40a2
--- /dev/null
+++ b/tests/queries/0_stateless/03254_merge_source_parts.reference
@@ -0,0 +1 @@
+1	2	2	1
diff --git a/tests/queries/0_stateless/03254_merge_source_parts.sql b/tests/queries/0_stateless/03254_merge_source_parts.sql
new file mode 100644
index 00000000000..3324cdf2aa0
--- /dev/null
+++ b/tests/queries/0_stateless/03254_merge_source_parts.sql
@@ -0,0 +1,8 @@
+DROP TABLE IF EXISTS test;
+CREATE TABLE test (x UInt8) ORDER BY x;
+INSERT INTO test VALUES (1);
+INSERT INTO test VALUES (2);
+OPTIMIZE TABLE test FINAL;
+SYSTEM FLUSH LOGS;
+SELECT ProfileEvents['Merge'], ProfileEvents['MergeSourceParts'], ProfileEvents['MergedRows'], ProfileEvents['MergedColumns'] FROM system.part_log WHERE database = currentDatabase() AND table = 'test' AND event_type = 'MergeParts';
+DROP TABLE test;