diff --git a/tests/pytest/fulltest.sh b/tests/pytest/fulltest.sh
index d8e2a31e70bd14b8feef6c8a45df671473e68537..f120bba5366e83eed86e289c6c80fe3b6819c273 100755
--- a/tests/pytest/fulltest.sh
+++ b/tests/pytest/fulltest.sh
@@ -31,7 +31,7 @@ python3 ./test.py -f table/column_name.py
 python3 ./test.py -f table/column_num.py
 python3 ./test.py -f table/db_table.py
 python3 ./test.py -f table/create_sensitive.py
-#python3 ./test.py -f table/tablename-boundary.py
+python3 ./test.py -f table/tablename-boundary.py
 python3 ./test.py  -f table/max_table_length.py
 python3 ./test.py -f table/alter_column.py
 python3 ./test.py -f table/boundary.py
diff --git a/tests/pytest/table/tablename-boundary.py b/tests/pytest/table/tablename-boundary.py
index 0755e7535577b32c52539ab46259b53096455808..8766a9d4a91d09e0fb75236394db5f311ef8521d 100644
--- a/tests/pytest/table/tablename-boundary.py
+++ b/tests/pytest/table/tablename-boundary.py
@@ -14,6 +14,13 @@ class TDTestCase:
         tdLog.debug("start to execute %s" % __file__)
         tdSql.init(conn.cursor(), logSql)
 
+        self.ts = 1622100000000
+
+    def get_random_string(self, length):
+        letters = string.ascii_lowercase
+        result_str = ''.join(random.choice(letters) for i in range(length))
+        return result_str
+
     def run(self):
         tdSql.prepare()
 
@@ -24,19 +31,64 @@ class TDTestCase:
                 shell=True)) - 1
         tdLog.info("table name max length is %d" % tableNameMaxLen)
         chars = string.ascii_uppercase + string.ascii_lowercase
-        tb_name = ''.join(random.choices(chars, k=tableNameMaxLen))
+        tb_name = ''.join(random.choices(chars, k=tableNameMaxLen + 1))
         tdLog.info('tb_name length %d' % len(tb_name))
         tdLog.info('create table %s (ts timestamp, value int)' % tb_name)
-        tdSql.error(
-            'create table %s (ts timestamp, speed binary(4089))' %
-            tb_name)
+        tdSql.error('create table %s (ts timestamp, speed binary(4089))' % tb_name)
 
-        tb_name = ''.join(random.choices(chars, k=191))
+        tb_name = ''.join(random.choices(chars, k=tableNameMaxLen))
         tdLog.info('tb_name length %d' % len(tb_name))
         tdLog.info('create table %s (ts timestamp, value int)' % tb_name)
         tdSql.execute(
             'create table %s (ts timestamp, speed binary(4089))' %
             tb_name)
+        
+        db_name = self.get_random_string(33)        
+        tdSql.error("create database %s" % db_name)
+        
+        db_name = self.get_random_string(32)
+        tdSql.execute("create database %s" % db_name)
+        tdSql.execute("use %s" % db_name)
+
+        tb_name = self.get_random_string(193)
+        tdSql.error("create table %s(ts timestamp, val int)" % tb_name)
+
+        tb_name = self.get_random_string(192)
+        tdSql.execute("create table %s.%s(ts timestamp, val int)" % (db_name, tb_name))
+        tdSql.query("show %s.tables" % db_name)
+        tdSql.checkRows(1)
+        tdSql.checkData(0, 0, tb_name)
+
+        tdSql.execute("insert into %s.%s values(now, 1)" % (db_name, tb_name))
+        tdSql.query("select * from %s.%s" %(db_name, tb_name))
+        tdSql.checkRows(1)
+        
+        db_name = self.get_random_string(32)
+        tdSql.execute("create database %s update 1" % db_name)
+
+        stb_name = self.get_random_string(192)
+        tdSql.execute("create table %s.%s(ts timestamp, val int) tags(id int)" % (db_name, stb_name))
+        tb_name1 = self.get_random_string(192)        
+        tdSql.execute("insert into %s.%s using %s.%s tags(1) values(%d, 1)(%d, 2)(%d, 3)" % (db_name, tb_name1, db_name, stb_name, self.ts, self.ts + 1, self.ts + 2))
+        tb_name2 = self.get_random_string(192)
+        tdSql.execute("insert into %s.%s using %s.%s tags(2) values(%d, 1)(%d, 2)(%d, 3)" % (db_name, tb_name2, db_name, stb_name, self.ts, self.ts + 1, self.ts + 2))
+        
+        tdSql.query("show %s.tables" % db_name)
+        tdSql.checkRows(2)
+        tdSql.checkData(0, 0, tb_name1)
+        tdSql.checkData(1, 0, tb_name2)
+
+        tdSql.query("select * from %s.%s" % (db_name, stb_name))
+        tdSql.checkRows(6)
+
+        tdSql.execute("insert into %s.%s using %s.%s tags(1) values(%d, null)" % (db_name, tb_name1, db_name, stb_name, self.ts))
+        
+        tdSql.query("select * from %s.%s" % (db_name, stb_name))
+        tdSql.checkRows(6)
+
+
+
+
 
     def stop(self):
         tdSql.close()