crash: StoneDB crash when executing the command (SELECT, HAING, GROUP BY, IS NULL)

[zhenglin-charlie-li]

Have you read the Contributing Guidelines on issues?

• [X] I have read the Contributing Guidelines on issues.

Please confirm if bug report does NOT exists already ?

• [X] I confirm there is no existing issue for this

Describe the problem

SQLancer find that StoneDB will crash when executing the command:

SELECT *
FROM t0
GROUP BY t0.c0
HAVING (t0.c0 IS NULL)
UNION ALL
SELECT *
FROM t0
GROUP BY t0.c0
HAVING (NOT (t0.c0 IS NULL))
UNION ALL
SELECT *
FROM t0
GROUP BY t0.c0
HAVING (((t0.c0 IS NULL)) IS NULL);

Expected behavior

will not crash and return empty set

How To Reproduce

drop database db100;
create database db100;
use db100;
create table t0 (c0 int);

SELECT *
FROM t0
GROUP BY t0.c0
HAVING (t0.c0 IS NULL)
UNION ALL
SELECT *
FROM t0
GROUP BY t0.c0
HAVING (NOT (t0.c0 IS NULL))
UNION ALL
SELECT *
FROM t0
GROUP BY t0.c0
HAVING (((t0.c0 IS NULL)) IS NULL);

Environment

docker latest version

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

• [ ] Yes, I will!

[haitaoguan]

./mysqld Ver 5.7.36-StoneDB-v1.0.4 for Linux on x86_64 (build-) build information as follow: Repository address: https://github.com/stoneatom/stonedb.git:stonedb-5.7-dev Branch name: stonedb-5.7-dev Last commit ID: 2bb2d48 Last commit time: Date: Thu Jul 13 10:04:56 2023 +0800 Build time: Date: Thu Jul 13 02:11:43 UTC 2023

[zhenglin-charlie-li]

@haitaoguan So, it means that this issue has been fixed? If so, maybe we can close this issue.