| Server IP : 104.21.38.3 / Your IP : 108.162.227.119 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/ndb/r/ |
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DROP TABLE IF EXISTS t1; create table t1 (a int key, b int) engine ndb; create table t2 (a int key, b int) engine ndb; insert into t1 values (0,0),(1,1),(2,2); insert into t2 select * from t1; begin; set transaction_allow_batching=1; update t1 set b=0 where a=2; commit; @ndb_execute_count:=VARIABLE_VALUE-@ndb_init_execute_count 1 select * from t1 order by a; a b 0 0 1 1 2 0 With batching only 1 roundtrip begin; set transaction_allow_batching=1; insert into t1 values (10,10); insert into t2 values (10,10); commit; @ndb_execute_count:=VARIABLE_VALUE-@ndb_init_execute_count 1 select * from t1 order by a; a b 0 0 1 1 2 0 10 10 Without batching only 3 roundtrips begin; set transaction_allow_batching=0; insert into t1 values (11,11); insert into t2 values (11,11); commit; @ndb_execute_count:=VARIABLE_VALUE-@ndb_init_execute_count 3 select * from t1 order by a; a b 0 0 1 1 2 0 10 10 11 11 drop table t1, t2;