--source include/have_innodb.inc

CREATE TABLE t1 (a INT, b INT, PRIMARY KEY (a)) ENGINE=InnoDB;

ALTER TABLE t1 ADD FOREIGN KEY (b) REFERENCES t1 (a) ON UPDATE CASCADE;

LOCK TABLE t1 WRITE;

TRUNCATE TABLE t1;

ALTER TABLE t1 ADD c INT;

# Cleanup

UNLOCK TABLES;

DROP TABLE t1;

mysqltest: At line 7: query 'ALTER TABLE t1 ADD c INT' failed: 1932: Table 'test.t1' doesn't exist in engine

2021-01-06  1:44:39 140509058860800 [Warning] InnoDB: Table test/t1 contains 2 user defined columns in InnoDB, but 3 columns in MariaDB. Please check INFORMATION_SCHEMA.INNODB_SYS_COLUMNS and https://mariadb.com/kb/en/innodb-data-dictionary-troubleshooting/ for how to resolve the issue.

mysqltest: At line 7: query 'ALTER TABLE t1 ADD c INT' failed: 1194: Table 't1' is marked as crashed and should be repaired

2021-01-06  1:45:53 4 [Warning] InnoDB: Table test/t1 contains 2 user defined columns in InnoDB, but 3 columns in MariaDB. Please check INFORMATION_SCHEMA.INNODB_SYS_COLUMNS and https://mariadb.com/kb/en/innodb-data-dictionary-troubleshooting/ for how to resolve the issue.

2021-01-06  1:45:53 4 [ERROR] mariadbd: Table 't1' is marked as crashed and should be repaired

2021-01-06  1:46:48 4 [Warning] InnoDB: Table test/t1 contains 2 user defined columns in InnoDB, but 3 columns in MariaDB. Please check INFORMATION_SCHEMA.INNODB_SYS_COLUMNS and https://mariadb.com/kb/en/innodb-data-dictionary-troubleshooting/ for how to resolve the issue.

2021-01-06  1:46:48 4 [ERROR] mariadbd: Table 't1' is marked as crashed and should be repaired

mariadbd: /data/src/10.5/sql/sql_base.cc:2375: int Locked_tables_list::unlock_locked_tables(THD*): Assertion `thd->transaction->stmt.is_empty()' failed.

210106  1:46:48 [ERROR] mysqld got signal 6 ;

#7  0x00007fe54d198f36 in __GI___assert_fail (assertion=0x56169620e3c0 "thd->transaction->stmt.is_empty()", file=0x56169620d7c0 "/data/src/10.5/sql/sql_base.cc", line=2375, function=0x56169620e388 "int Locked_tables_list::unlock_locked_tables(THD*)") at assert.c:101

#8  0x00005616953ab046 in Locked_tables_list::unlock_locked_tables (this=0x7fe510004d90, thd=0x7fe510000db8) at /data/src/10.5/sql/sql_base.cc:2375

#9  0x00005616953ab4b6 in Locked_tables_list::unlink_all_closed_tables (this=0x7fe510004d90, thd=0x7fe510000db8, lock=0x0, reopen_count=0) at /data/src/10.5/sql/sql_base.cc:2557

#10 0x00005616953aba61 in Locked_tables_list::reopen_tables (this=0x7fe510004d90, thd=0x7fe510000db8, need_reopen=false) at /data/src/10.5/sql/sql_base.cc:2654

#11 0x0000561695561cfc in mysql_alter_table (thd=0x7fe510000db8, new_db=0x7fe510005800, new_name=0x7fe510005c00, create_info=0x7fe548142420, table_list=0x7fe510014010, alter_info=0x7fe548142350, order_num=0, order=0x0, ignore=false, if_exists=false) at /data/src/10.5/sql/sql_table.cc:11044

#12 0x0000561695608adc in Sql_cmd_alter_table::execute (this=0x7fe5100147f8, thd=0x7fe510000db8) at /data/src/10.5/sql/sql_alter.cc:539

#13 0x000056169545f9cc in mysql_execute_command (thd=0x7fe510000db8) at /data/src/10.5/sql/sql_parse.cc:6006

#14 0x0000561695465d88 in mysql_parse (thd=0x7fe510000db8, rawbuf=0x7fe510013f30 "ALTER TABLE t1 ADD c INT", length=24, parser_state=0x7fe548143510, is_com_multi=false, is_next_command=false) at /data/src/10.5/sql/sql_parse.cc:8042

#15 0x0000561695451d6b in dispatch_command (command=COM_QUERY, thd=0x7fe510000db8, packet=0x7fe5100090a9 "ALTER TABLE t1 ADD c INT", packet_length=24, is_com_multi=false, is_next_command=false) at /data/src/10.5/sql/sql_parse.cc:1872

#16 0x000056169545055f in do_command (thd=0x7fe510000db8) at /data/src/10.5/sql/sql_parse.cc:1353

#17 0x00005616955fde9f in do_handle_one_connection (connect=0x5616984b58a8, put_in_cache=true) at /data/src/10.5/sql/sql_connect.cc:1410

#18 0x00005616955fdc02 in handle_one_connection (arg=0x5616984cf308) at /data/src/10.5/sql/sql_connect.cc:1312

#19 0x0000561695b5c74d in pfs_spawn_thread (arg=0x5616984b54e8) at /data/src/10.5/storage/perfschema/pfs.cc:2201

#20 0x00007fe54d6b0609 in start_thread (arg=<optimized out>) at pthread_create.c:477

#21 0x00007fe54d284293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95