Server IP : 104.21.38.3 / Your IP : 162.158.190.14 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/ |
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-- source include/have_innodb.inc -- source include/have_innodb_16k.inc --echo # --echo # Bug#15923864 (Bug#67718): --echo # INNODB DRASTICALLY UNDER-FILLS PAGES IN CERTAIN CONDITIONS --echo # # InnoDB should try to insert to the next page before split, # if the insert record for split_and_insert is last of the page. # Otherwise, the follwing records 999,998,997 cause each page per record. # --disable_query_log SET @old_innodb_file_per_table = @@innodb_file_per_table; --enable_query_log SET GLOBAL innodb_file_per_table=ON; CREATE TABLE t1 (a BIGINT PRIMARY KEY, b VARCHAR(4096)) ENGINE=InnoDB; INSERT INTO t1 VALUES (0, REPEAT('a', 4096)); INSERT INTO t1 VALUES (1000, REPEAT('a', 4096)); INSERT INTO t1 VALUES (1001, REPEAT('a', 4096)); INSERT INTO t1 VALUES (1002, REPEAT('a', 4096)); INSERT INTO t1 VALUES (1, REPEAT('a', 4096)); INSERT INTO t1 VALUES (2, REPEAT('a', 4096)); # | 0, 1, 2 | 1000, 1001, 1002| SELECT page_number, number_records FROM information_schema.innodb_sys_tablespaces s1, information_schema.innodb_buffer_page s2 WHERE s1.space = s2.space AND name = 'test/t1' AND page_type = "INDEX" ORDER BY page_number; INSERT INTO t1 VALUES (999, REPEAT('a', 4096)); # try to insert '999' to the end of '0,1,2' page, but no space # the next '1000,1001,1002' page has also no space. # | 0, 1, 2 | 999 | 1000, 1001, 1002| SELECT page_number, number_records FROM information_schema.innodb_sys_tablespaces s1, information_schema.innodb_buffer_page s2 WHERE s1.space = s2.space AND name = 'test/t1' AND page_type = "INDEX" ORDER BY page_number; INSERT INTO t1 VALUES (998, REPEAT('a', 4096)); # try to insert to the end of '0,1,2' page, but no space # the next '998' page has space. # | 0, 1, 2 | 998, 999 | 1000, 1001, 1002| SELECT page_number, number_records FROM information_schema.innodb_sys_tablespaces s1, information_schema.innodb_buffer_page s2 WHERE s1.space = s2.space AND name = 'test/t1' AND page_type = "INDEX" ORDER BY page_number; INSERT INTO t1 VALUES (997, REPEAT('a', 4096)); # same # | 0, 1, 2 | 997, 998, 999 | 1000, 1001, 1002| SELECT page_number, number_records FROM information_schema.innodb_sys_tablespaces s1, information_schema.innodb_buffer_page s2 WHERE s1.space = s2.space AND name = 'test/t1' AND page_type = "INDEX" ORDER BY page_number; DROP TABLE t1; --disable_query_log SET GLOBAL innodb_file_per_table = @old_innodb_file_per_table; --enable_query_log