bug: ERROR 2013 (HY000): Lost connection to MySQL server during query

[hustjieke]

Have you read the Contributing Guidelines on issues?

• I have read the Contributing Guidelines on issues.

Please confirm if bug report does NOT exists already ?

• I confirm there is no existing issue for this

Describe the problem

When execute concat testcase sql:

use test;
CREATE TABLE `test_case` (
  `id` int DEFAULT NULL,
  `name` text
) ENGINE=TIANMU;
insert into test_case values(1,'test');
insert into test_case (name) values('test2');
insert into test_case values(3,'test3');
select concat(id,name) from test_case;
drop table test_case;

The mysql client return:

mysql> CREATE TABLE `test_case` (
    ->   `id` int DEFAULT NULL,
    ->   `name` text
    -> ) ENGINE=TIANMU;
Query OK, 0 rows affected (0.04 sec)

mysql> insert into test_case values(1,'test');
Query OK, 1 row affected (0.01 sec)

mysql> insert into test_case (name) values('test2');
ERROR 2013 (HY000): Lost connection to MySQL server during query
No connection. Trying to reconnect...
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/github/stonedb/build/install8/tmp/mysql.sock' (2)
ERROR: 
Can't connect to the server

mysql> insert into test_case (name) values('test2');
No connection. Trying to reconnect...
Connection id:    8
Current database: test

Query OK, 1 row affected (0.07 sec)

mysql> insert into test_case values(3,'test3');
ERROR 2013 (HY000): Lost connection to MySQL server during query
No connection. Trying to reconnect...
Connection id:    8
Current database: test

Query OK, 1 row affected (0.08 sec)

Expected behavior

Execute sql successed.

How To Reproduce

No response

Environment

1. ubuntu 20
2. stonedb-8.0-dev

Are you interested in submitting a PR to solve the problem?

• Yes, I will!

[hustjieke]

Actuall these sqls runned success in mtr.