From 3c4facd48d07291c9f2ca883d9ee001363cda9b2 Mon Sep 17 00:00:00 2001
From: Alex Duan <417921451@qq.com>
Date: Fri, 15 Sep 2023 18:27:01 +0800
Subject: [PATCH] case: add keepColumnName option case

---
 tests/system-test/0-others/show.py | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/tests/system-test/0-others/show.py b/tests/system-test/0-others/show.py
index 4ef323db22..75d7116e03 100644
--- a/tests/system-test/0-others/show.py
+++ b/tests/system-test/0-others/show.py
@@ -210,6 +210,27 @@ class TDTestCase:
         licences_info = tdSql.queryResult
         tdSql.checkEqual(grants_info,licences_info)
 
+    def show_column_name(self):
+        tdSql.execute("create database db;")
+        tdSql.execute("use db;")
+        tdSql.execute("create table ta(ts timestamp, name nchar(16), age int , address int);")
+        tdSql.execute("insert into ta values(now, 'jack', 19, 23);")
+        
+        colName1 = ["ts","name","age","address"]
+        colName2 = tdSql.getColNameList("select last(*) from ta;")
+        for i in range(len(colName1)):
+            if colName2[i] != f"last({colName1[i]})":
+                tdLog.exit(f"column name is different.  {colName2} != last({colName1[i]} ")
+                return 
+
+        # alter option        
+        tdSql.execute("alter local 'keepColumnName' '1';")
+        colName3 = tdSql.getColNameList("select last(*) from ta;")
+        for col in colName3:
+            if colName1 != colName3:
+                tdLog.exit(f"column name is different. colName1= {colName1} colName2={colName3}")
+                return
+
     def run(self):
         self.check_gitinfo()
         self.show_base()
@@ -218,6 +239,7 @@ class TDTestCase:
         self.show_create_sql()
         self.show_create_sysdb_sql()
         self.show_create_systb_sql()
+        self.show_column_name()
 
     def stop(self):
         tdSql.close()