Merge pull request #20531 from taosdata/test/TS-2908

test：add test case

tests/pytest/util/common.py

@@ -739,6 +739,11 @@ class TDCom:
         else:
             os.system("unset LD_PRELOAD; pkill %s " % processorName)
 
+    def gen_tag_col_str(self, gen_type, data_type, count):
+        """
+        gen multi tags or cols by gen_type
+        """
+        return ','.join(map(lambda i: f'{gen_type}{i} {data_type}', range(count)))
 
 def is_json(msg):
     if isinstance(msg, str):
@@ -775,4 +780,5 @@ def dict2toml(in_dict: dict, file:str):
     with open(file, 'w') as f:
         toml.dump(in_dict, f)
 
+
 tdCom = TDCom()

tests/system-test/0-others/information_schema.py

@@ -93,7 +93,6 @@ class TDTestCase:
                 tdSql.checkEqual(i[2],len(self.perf_list))
         tdSql.execute('create table db1.ntb (ts timestamp,c0 int)')
         tdSql.query(f'select db_name, count(*) from information_schema.ins_tables group by db_name')
-        print(tdSql.queryResult)
         for i in tdSql.queryResult:
             if i[0].lower() == 'information_schema':
                 tdSql.checkEqual(i[1],len(self.ins_list))
@@ -101,6 +100,41 @@ class TDTestCase:
                 tdSql.checkEqual(i[1],len(self.perf_list))
             elif i[0].lower() == self.dbname:
                 tdSql.checkEqual(i[1],self.tbnum+1)
+    
+
+        
+    def ins_col_check_4096(self):
+        tdSql.execute('create database db3 vgroups 2 replica 1')
+        col_str = tdCom.gen_tag_col_str("col", "int",4094)
+        tdSql.execute(f'create stable if not exists db3.stb (col_ts timestamp, {col_str}) tags (t1 int)')
+        for i in range(100):
+            tdLog.info(f"create table db3.ctb{i} using db3.stb tags({i})")
+            tdSql.execute(f"create table db3.ctb{i} using db3.stb tags({i})")
+            col_value_str = '1, ' * 4093 + '1'
+            tdSql.execute(f"insert into db3.ctb{i} values(now,{col_value_str})(now+1s,{col_value_str})(now+2s,{col_value_str})(now+3s,{col_value_str})")
+        tdSql.query("select * from information_schema.ins_columns")
+        
+        tdSql.execute('drop database db3')
+    def ins_stable_check(self):
+        tdSql.execute('create database db3 vgroups 2 replica 1')
+        tbnum = 10
+        ctbnum = 10
+        for i in range(tbnum):
+            tdSql.execute(f'create stable db3.stb_{i} (ts timestamp,c0 int) tags(t0 int)')
+            tdSql.execute(f'create table db3.ntb_{i} (ts timestamp,c0 int)')
+            for j in range(ctbnum):
+                tdSql.execute(f"create table db3.ctb_{i}_{j} using db3.stb_{i} tags({j})")
+        tdSql.query("select stable_name,count(table_name) from information_schema.ins_tables where db_name = 'db3' group by stable_name order by stable_name")
+        result = tdSql.queryResult
+        for i in range(len(result)):
+            if result[i][0] == None:
+                tdSql.checkEqual(result[0][1],tbnum)
+            else:
+                tdSql.checkEqual(result[i][0],f'stb_{i-1}')
+                tdSql.checkEqual(result[i][1],ctbnum)
+        
+
+
     def ins_columns_check(self):
         tdSql.execute('drop database if exists db2')
         tdSql.execute('create database if not exists db2 vgroups 1 replica 1')
@@ -129,10 +163,14 @@ class TDTestCase:
             tdSql.query(f'select * from information_schema.ins_columns where db_name="db2" and table_type=="NORMAL_TABLE"')
             tdSql.checkEqual(20470,len(tdSql.queryResult))
 
+
     def run(self):
         self.prepare_data()
         self.count_check()
         self.ins_columns_check()
+        # self.ins_col_check_4096()
+        self.ins_stable_check()
+
 
     def stop(self):
         tdSql.close()