From 007170481a966674e17f6e47e5c5abe8a87d3747 Mon Sep 17 00:00:00 2001
From: Azat Khuzhin <a3at.mail@gmail.com>
Date: Tue, 28 Apr 2020 22:41:23 +0300
Subject: [PATCH] Add a test for ALIAS with type different to the type of
 column

---
 .../01269_alias_type_differs.reference        |  4 ++++
 .../0_stateless/01269_alias_type_differs.sql  | 20 +++++++++++++++++++
 2 files changed, 24 insertions(+)
 create mode 100644 tests/queries/0_stateless/01269_alias_type_differs.reference
 create mode 100644 tests/queries/0_stateless/01269_alias_type_differs.sql

diff --git a/tests/queries/0_stateless/01269_alias_type_differs.reference b/tests/queries/0_stateless/01269_alias_type_differs.reference
new file mode 100644
index 00000000000..f837a2bd382
--- /dev/null
+++ b/tests/queries/0_stateless/01269_alias_type_differs.reference
@@ -0,0 +1,4 @@
+UInt8
+0
+UInt8
+0
diff --git a/tests/queries/0_stateless/01269_alias_type_differs.sql b/tests/queries/0_stateless/01269_alias_type_differs.sql
new file mode 100644
index 00000000000..3b99e5e7eec
--- /dev/null
+++ b/tests/queries/0_stateless/01269_alias_type_differs.sql
@@ -0,0 +1,20 @@
+DROP TABLE IF EXISTS data_01269;
+CREATE TABLE data_01269
+(
+    key     Int32,
+    value   Nullable(Int32),
+    alias   UInt8 ALIAS value>0
+)
+ENGINE = MergeTree()
+ORDER BY key;
+INSERT INTO data_01269 VALUES (1, 0);
+
+-- after PR#10441
+SELECT toTypeName(alias) FROM data_01269;
+SELECT any(alias) FROM data_01269;
+
+-- even without PR#10441
+ALTER TABLE data_01269 DROP COLUMN alias;
+ALTER TABLE data_01269 ADD COLUMN alias UInt8 ALIAS value>0;
+SELECT toTypeName(alias) FROM data_01269;
+SELECT any(alias) FROM data_01269;