| Server IP : 172.67.216.182 / Your IP : 172.70.208.21 Web Server : Apache System : Linux krdc-ubuntu-s-2vcpu-4gb-amd-blr1-01.localdomain 5.15.0-142-generic #152-Ubuntu SMP Mon May 19 10:54:31 UTC 2025 x86_64 User : www ( 1000) PHP Version : 7.4.33 Disable Function : passthru,exec,system,putenv,chroot,chgrp,chown,shell_exec,popen,proc_open,pcntl_exec,ini_alter,ini_restore,dl,openlog,syslog,readlink,symlink,popepassthru,pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,imap_open,apache_setenv MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : ON Directory : /www/server/mysql/src/mysql-test/suite/innodb/r/ |
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set names utf8; CREATE TABLE t( a INT AUTO_INCREMENT PRIMARY KEY, b CHAR(100), c INT, z INT, INDEX idx(b)) ENGINE=InnoDB STATS_PERSISTENT=0; INSERT INTO t VALUES(0,'x',1, 1); CREATE UNIQUE INDEX idx1 ON t(c, b); SELECT * FROM t; a b c z 1 x 1 1 INSERT INTO t SELECT 0,b,c+1,z+1 FROM t; select count(*) from t; count(*) 2 SET GLOBAL innodb_fast_shutdown=0; # restart: --innodb-read-only SET SESSION debug="+d,dict_set_index_corrupted"; check table t; Table Op Msg_type Msg_text test.t check Warning InnoDB: The B-tree of index idx is corrupted. test.t check Warning InnoDB: The B-tree of index idx1 is corrupted. test.t check error Corrupt SET SESSION debug="-d,dict_set_index_corrupted"; select c from t; ERROR HY000: Index t is corrupted show warnings; Level Code Message Warning 180 InnoDB: Index idx1 for table `test`.`t` is marked as corrupted Error 1712 Index t is corrupted select * from t use index(primary) where a = 1; a b c z 1 x 1 1 # restart DROP INDEX idx ON t; DROP INDEX idx1 ON t; drop table t;