| Server IP : 104.21.38.3 / Your IP : 172.71.124.136 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/sysschema/r/ |
Upload File : |
DESC sys.schema_table_lock_waits; Field Type Null Key Default Extra object_schema varchar(64) YES NULL object_name varchar(64) YES NULL waiting_thread_id bigint(20) unsigned NO NULL waiting_pid bigint(20) unsigned YES NULL waiting_account text YES NULL waiting_lock_type varchar(32) NO NULL waiting_lock_duration varchar(32) NO NULL waiting_query longtext YES NULL waiting_query_secs bigint(20) YES NULL waiting_query_rows_affected bigint(20) unsigned YES NULL waiting_query_rows_examined bigint(20) unsigned YES NULL blocking_thread_id bigint(20) unsigned NO NULL blocking_pid bigint(20) unsigned YES NULL blocking_account text YES NULL blocking_lock_type varchar(32) NO NULL blocking_lock_duration varchar(32) NO NULL sql_kill_blocking_query varchar(31) YES NULL sql_kill_blocking_connection varchar(25) YES NULL SELECT * FROM sys.schema_table_lock_waits; DESC sys.x$schema_table_lock_waits; Field Type Null Key Default Extra object_schema varchar(64) YES NULL object_name varchar(64) YES NULL waiting_thread_id bigint(20) unsigned NO NULL waiting_pid bigint(20) unsigned YES NULL waiting_account text YES NULL waiting_lock_type varchar(32) NO NULL waiting_lock_duration varchar(32) NO NULL waiting_query longtext YES NULL waiting_query_secs bigint(20) YES NULL waiting_query_rows_affected bigint(20) unsigned YES NULL waiting_query_rows_examined bigint(20) unsigned YES NULL blocking_thread_id bigint(20) unsigned NO NULL blocking_pid bigint(20) unsigned YES NULL blocking_account text YES NULL blocking_lock_type varchar(32) NO NULL blocking_lock_duration varchar(32) NO NULL sql_kill_blocking_query varchar(31) YES NULL sql_kill_blocking_connection varchar(25) YES NULL SELECT * FROM sys.x$schema_table_lock_waits; CREATE TABLE test.lock_waits (i INT PRIMARY KEY, j INT) ENGINE = InnoDB; LOCK TABLE lock_waits WRITE; ALTER TABLE test.lock_waits ADD k VARCHAR(20); SELECT SLEEP(1); SLEEP(1) 0 SELECT object_schema, object_name, waiting_account, waiting_lock_type, waiting_query, blocking_account, blocking_lock_type, blocking_lock_duration FROM sys.schema_table_lock_waits; object_schema object_name waiting_account waiting_lock_type waiting_query blocking_account blocking_lock_type blocking_lock_duration test lock_waits root@localhost SHARED_UPGRADABLE ALTER TABLE test.lock_waits ADD k VARCHAR(20) root@localhost SHARED_NO_READ_WRITE TRANSACTION SELECT SLEEP(1); SLEEP(1) 0 SELECT object_schema, object_name, waiting_account, waiting_lock_type, waiting_query, blocking_account, blocking_lock_type, blocking_lock_duration FROM sys.schema_table_lock_waits; object_schema object_name waiting_account waiting_lock_type waiting_query blocking_account blocking_lock_type blocking_lock_duration DROP TABLE test.lock_waits;