From e6bc050a497c530a9952f0faf51da8cdfa21f7cb Mon Sep 17 00:00:00 2001
From: Liang-Chi Hsieh <viirya@gmail.com>
Date: Mon, 20 May 2024 10:47:54 -0700
Subject: [PATCH] HashJoin LeftAnti Join should handle nulls correctly

---
 datafusion/sqllogictest/test_files/join.slt | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/datafusion/sqllogictest/test_files/join.slt b/datafusion/sqllogictest/test_files/join.slt
index 6732d3e9108b1..353d75fd0f835 100644
--- a/datafusion/sqllogictest/test_files/join.slt
+++ b/datafusion/sqllogictest/test_files/join.slt
@@ -793,3 +793,19 @@ DROP TABLE companies
 
 statement ok
 DROP TABLE leads
+
+
+# LeftAnti Join with null
+statement ok
+CREATE TABLE IF NOT EXISTS test_table(c1 INT, c2 INT) AS VALUES
+(1, 1),
+(2, 2),
+(3, 3),
+(4, null),
+(null, 0);
+
+query II
+SELECT * FROM test_table t1 WHERE (c1 NOT IN (SELECT c2 FROM test_table)) = true
+----
+4 NULL
+NULL 0