From 2d7fdc896a714c48d990264e17443d6c8834620b Mon Sep 17 00:00:00 2001
From: vdimir <vdimir@clickhouse.com>
Date: Mon, 12 Feb 2024 14:03:45 +0000
Subject: [PATCH] Add test 02988_join_using_prewhere_pushdown

---
 ...988_join_using_prewhere_pushdown.reference |  2 ++
 .../02988_join_using_prewhere_pushdown.sql    | 24 +++++++++++++++++++
 2 files changed, 26 insertions(+)
 create mode 100644 tests/queries/0_stateless/02988_join_using_prewhere_pushdown.reference
 create mode 100644 tests/queries/0_stateless/02988_join_using_prewhere_pushdown.sql

diff --git a/tests/queries/0_stateless/02988_join_using_prewhere_pushdown.reference b/tests/queries/0_stateless/02988_join_using_prewhere_pushdown.reference
new file mode 100644
index 00000000000..c9bf491872a
--- /dev/null
+++ b/tests/queries/0_stateless/02988_join_using_prewhere_pushdown.reference
@@ -0,0 +1,2 @@
+1	a
+2	b	Int64
diff --git a/tests/queries/0_stateless/02988_join_using_prewhere_pushdown.sql b/tests/queries/0_stateless/02988_join_using_prewhere_pushdown.sql
new file mode 100644
index 00000000000..db49f155d3f
--- /dev/null
+++ b/tests/queries/0_stateless/02988_join_using_prewhere_pushdown.sql
@@ -0,0 +1,24 @@
+DROP TABLE IF EXISTS t;
+
+SET allow_suspicious_low_cardinality_types = 1;
+
+
+CREATE TABLE t (`id` UInt16, `u` LowCardinality(Int32), `s` LowCardinality(String))
+ENGINE = MergeTree ORDER BY id;
+
+INSERT INTO t VALUES (1,1,'a'),(2,2,'b');
+
+SELECT u, s FROM t
+INNER JOIN ( SELECT number :: Int32 AS u FROM numbers(10) ) AS t1
+USING (u)
+WHERE u != 2
+;
+
+SELECT u, s, toTypeName(u) FROM t
+FULL JOIN ( SELECT number :: UInt32 AS u FROM numbers(10) ) AS t1
+USING (u)
+WHERE u == 2
+ORDER BY 1
+;
+
+DROP TABLE IF EXISTS t;