| Server IP : 104.21.38.3 / Your IP : 162.158.189.74 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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create table parent ( a int primary key, b int not null, c int not null, unique(b) using hash, index(c)) engine = ndb; create table child ( a int primary key, b int not null, c int not null, unique(b) using hash, index(c)) engine = ndb; insert into parent values (1,2,3); insert into child values (3,4,5); alter table child algorithm=inplace, add constraint fkname foreign key (a) references parent(a); ERROR 23000: Cannot add or update a child row: a foreign key constraint fails (Unknown error code) alter table child algorithm=inplace, add constraint fkname foreign key(b) references parent(a); ERROR 23000: Cannot add or update a child row: a foreign key constraint fails (Unknown error code) alter table child algorithm=inplace, add constraint fkname foreign key(c) references parent(a); ERROR 23000: Cannot add or update a child row: a foreign key constraint fails (Unknown error code) alter table child algorithm=inplace, add constraint fkname foreign key(a) references parent(b); ERROR 23000: Cannot add or update a child row: a foreign key constraint fails (Unknown error code) alter table child algorithm=inplace, add constraint fkname foreign key(b) references parent(b); ERROR 23000: Cannot add or update a child row: a foreign key constraint fails (Unknown error code) alter table child algorithm=inplace, add constraint fkname foreign key(c) references parent(b); ERROR 23000: Cannot add or update a child row: a foreign key constraint fails (Unknown error code) insert into parent values (2,3,4); insert into parent values (3,4,5); insert into parent values (4,5,6); insert into parent values (5,6,7); alter table child algorithm=inplace, add constraint fk1 foreign key(a) references parent(a); alter table child algorithm=inplace, add constraint fk2 foreign key(b) references parent(a); alter table child algorithm=inplace, add constraint fk3 foreign key(c) references parent(a); alter table child algorithm=inplace, add constraint fk4 foreign key(a) references parent(b); alter table child algorithm=inplace, add constraint fk5 foreign key(b) references parent(b); alter table child algorithm=inplace, add constraint fk6 foreign key(c) references parent(b); alter table child algorithm=inplace, drop foreign key fk1, drop foreign key fk2, drop foreign key fk3, drop foreign key fk4, drop foreign key fk5, drop foreign key fk6; drop table parent, child;