| Server IP : 172.67.216.182 / Your IP : 172.70.208.52 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/ |
Upload File : |
# Bug #23481444 OPTIMISER CALL ROW_SEARCH_MVCC() AND READ
# THE INDEX APPLIED BY UNCOMMITTED ROWS.
CREATE TABLE t1(f1 INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
f2 INT NOT NULL, f3 INT NOT NULL,
KEY(f2, f3))ENGINE=INNODB;
CREATE PROCEDURE populate_t1(IN BASE INT, IN SIZE INT)
BEGIN
DECLARE i INT DEFAULT BASE;
WHILE (i <= SIZE) DO
INSERT INTO t1(f2, f3) values (i, i);
SET i = i + 1;
END WHILE;
END|
CALL populate_t1(1, 10000);
INSERT INTO t1(f2, f3) VALUES(10000, 10000);
BEGIN;
CALL populate_t1(10001, 20000);
SELECT SQL_NO_CACHE f2, f3 FROM t1 WHERE f2=10000 and f3 between 9999 and 10000;
f2 f3
10000 10000
10000 10000
Warnings:
Warning 1681 'SQL_NO_CACHE' is deprecated and will be removed in a future release.
DROP TABLE t1;
CREATE TABLE t1(f2 INT NOT NULL, f3 INT NOT NULL,
PRIMARY KEY(f2, f3))ENGINE=INNODB;
CALL populate_t1(1, 10000);
BEGIN;
CALL populate_t1(10001, 20000);
SELECT SQL_NO_CACHE f2, f3 FROM t1 WHERE f2=10000 and f3 between 9999 and 10000;
f2 f3
10000 10000
Warnings:
Warning 1681 'SQL_NO_CACHE' is deprecated and will be removed in a future release.
DROP TABLE t1;
CREATE TABLE t1(f1 INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
f2 INT NOT NULL, f3 INT NOT NULL,
KEY(f2), KEY(f3))ENGINE=INNODB;
CALL populate_t1(1, 10000);
BEGIN;
CALL populate_t1(10001, 20000);
SELECT count(*) FROM t1 FORCE INDEX(f2, f3) WHERE f2 < 10000 or f3 < 10000;
count(*)
9999
DROP TABLE t1;
CREATE TABLE t1(f1 INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
f2 INT NOT NULL, f3 INT NOT NULL,
KEY(f2, f3))ENGINE=INNODB;
CALL populate_t1(1, 10000);
CALL populate_t1(100000, 100200);
BEGIN;
CALL populate_t1(10001, 20000);
SELECT SQL_NO_CACHE COUNT(*) FROM t1
WHERE f2 BETWEEN 9999 AND 10000 OR f2 >= 100000;
COUNT(*)
203
Warnings:
Warning 1681 'SQL_NO_CACHE' is deprecated and will be removed in a future release.
COMMIT;
DROP TABLE t1;
CREATE TABLE t1(f1 INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
f2 INT NOT NULL, f3 INT NOT NULL,
f4 INT AS (f2) VIRTUAL, key(f3, f4))
PARTITION BY KEY() PARTITIONS 2;
CALL populate_t1(1, 10000);
BEGIN;
CALL populate_t1(10001, 20000);
SELECT /*+ NO_ICP(t1) */ * FROM t1 WHERE f3 = 10000
AND f4 BETWEEN 9999 AND 10000;
f1 f2 f3 f4
10000 10000 10000 10000
COMMIT;
drop table t1;
CREATE TABLE t1(f1 INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
f2 INT NOT NULL, f3 INT NOT NULL,
f4 INT AS (f2) VIRTUAL,
f5 INT AS (f2) VIRTUAL, key(f4, f5))
PARTITION BY KEY() PARTITIONS 2;
CALL populate_t1(1, 10000);
BEGIN;
CALL populate_t1(10001, 20000);
SELECT /*+ NO_ICP(t1) */ * FROM t1 WHERE f4 = 10000
AND f5 BETWEEN 9999 AND 10000;
f1 f2 f3 f4 f5
10000 10000 10000 10000 10000
COMMIT;
DROP TABLE t1;
DROP PROCEDURE populate_t1;
CREATE TABLE t2(f1 int not null, f2 char(100), f3 INT,
KEY(f2(20), f3))ENGINE=INNODB;
CREATE PROCEDURE populate_t2(IN BASE INT, IN SIZE INT)
BEGIN
DECLARE i INT DEFAULT BASE;
WHILE (i <= SIZE) DO
INSERT INTO t2(f1, f2, f3) values (i, repeat('a', 100), i);
SET i = i + 1;
END WHILE;
END|
CALL populate_t2(1, 10000);
BEGIN;
CALL populate_t2(10001, 20000);
SELECT /*+ NO_ICP(t2) */ f1 FROM t2 WHERE f2 = repeat('a', 100)
and f3 BETWEEN 10000 and 10001;
f1
10000
DROP PROCEDURE populate_t2;
DROP TABLE t2;