MariaDB SEGV issue

START TRANSACTION WITH CONSISTENT SNAPSHOT ;

CREATE TABLE v3 ( v5 INT ( 16 ) , v4 INT ) ENGINE = MEMORY ;

SELECT v4 IS NULL FROM v3 WHERE '' = 98 ;

ALTER TABLE v3 ADD ( v6 INT DEFAULT ( ( 'x' IN ( 'x' , 'x' , 'x' , CURRENT_USER , SPACE ( 'x' ) , lower ( 'x' ) ) ) + 91 ) ) ;

LOCK TABLE v3 WRITE ;

ALTER TABLE v3 ADD COLUMN ONE INT DEFAULT ( ( ( 'x' = RIGHT ( 'x' , 16 ) ) ) + v4 | CONVERT ( v4 , CHAR ( 23 ) ) ) ;

Thread pointer: 0x62b00015e218

Attempting backtrace. You can use the following information to find out

where mysqld died. If you see no messages after this, something went

terribly wrong...