From aa8840447f280a0bdf8f5f53e91e6da017898c5f Mon Sep 17 00:00:00 2001
From: Vxider <lb@vxider.com>
Date: Sat, 18 Apr 2020 15:20:10 +0800
Subject: [PATCH 1/2] add performance test for mv_parallel_ insert

---
 .../materialized_view_parallel_insert.xml     | 38 +++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 tests/performance/materialized_view_parallel_insert.xml

diff --git a/tests/performance/materialized_view_parallel_insert.xml b/tests/performance/materialized_view_parallel_insert.xml
new file mode 100644
index 00000000000..a430c4e480c
--- /dev/null
+++ b/tests/performance/materialized_view_parallel_insert.xml
@@ -0,0 +1,38 @@
+<test>
+    <stop_conditions>
+        <any_of>
+            <iterations>2</iterations>
+        </any_of>
+    </stop_conditions>
+
+    <preconditions>
+        <table_exists>hits_10m_single</table_exists>
+    </preconditions>
+
+    <create_query>
+        CREATE MATERIALIZED VIEW hits_mv ENGINE MergeTree
+        PARTITION BY toYYYYMM(EventDate)
+        ORDER BY (CounterID, EventDate, intHash32(UserID))
+        SAMPLE BY intHash32(UserID)
+        SETTINGS
+            parts_to_delay_insert = 5000,
+            parts_to_throw_insert = 5000
+        AS
+            -- don't select all columns to keep the run time down
+            SELECT CounterID, EventDate, UserID, Title
+            FROM hits_10m_single
+            -- do not select anything because we only need column types
+            LIMIT 0
+    </create_query>
+    <fill_query>SET max_insert_threads=8</fill_query>
+    <fill_query>SYSTEM STOP MERGES</fill_query>
+
+    <query>
+        INSERT INTO hits_mv
+        SELECT CounterID, EventDate, UserID, Title
+        FROM hits_10m_single
+    </query>
+
+    <drop_query>SYSTEM START MERGES</drop_query>
+    <drop_query>DROP TABLE IF EXISTS hits_mv</drop_query>
+</test>

From 7fbd7e953316bedaaebfd92aa60ff2eeb84dc73e Mon Sep 17 00:00:00 2001
From: alexey-milovidov <milovidov@yandex-team.ru>
Date: Sat, 18 Apr 2020 15:41:15 +0300
Subject: [PATCH 2/2] Update materialized_view_parallel_insert.xml

---
 tests/performance/materialized_view_parallel_insert.xml | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/tests/performance/materialized_view_parallel_insert.xml b/tests/performance/materialized_view_parallel_insert.xml
index a430c4e480c..4b71354dec3 100644
--- a/tests/performance/materialized_view_parallel_insert.xml
+++ b/tests/performance/materialized_view_parallel_insert.xml
@@ -1,10 +1,4 @@
 <test>
-    <stop_conditions>
-        <any_of>
-            <iterations>2</iterations>
-        </any_of>
-    </stop_conditions>
-
     <preconditions>
         <table_exists>hits_10m_single</table_exists>
     </preconditions>