From cccec022eb7808a0c7cee81a1f6d795d440f4b87 Mon Sep 17 00:00:00 2001
From: Ping Xiao <pxiao@taosdata.com>
Date: Wed, 7 Aug 2024 19:20:07 +0800
Subject: [PATCH] add test case for TS-4236

---
 tests/system-test/2-query/interval_limit_opt.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tests/system-test/2-query/interval_limit_opt.py b/tests/system-test/2-query/interval_limit_opt.py
index aa1702fe3c..2f222d5b43 100644
--- a/tests/system-test/2-query/interval_limit_opt.py
+++ b/tests/system-test/2-query/interval_limit_opt.py
@@ -195,6 +195,10 @@ class TDTestCase:
         tdSql.checkData(1, 4, 2)
         tdSql.checkData(2, 4, 9)
         tdSql.checkData(3, 4, 9)
+        
+        sql = "SELECT _wstart, last(c1) FROM t6 INTERVAL(1w);"
+        tdSql.query(sql)
+        tdSql.checkRows(11)
 
     def test_partition_by_limit_no_agg(self):
         sql_template = 'select t1 from meters partition by t1 limit %d'