| Server IP : 172.67.216.182 / Your IP : 162.158.108.7 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/sys_vars/t/ |
Upload File : |
############## mysql-test\t\foreign_key_checks_func.test ##################### # # # Variable Name: foreign_key_checks # # Scope: SESSION # # Access Type: Dynamic # # Data Type: boolean # # Default Value: NA # # Range: NA # # # # # # Creation Date: 2008-03-08 # # Author: Rizwan # # # # Description: Test Cases of Dynamic System Variable foreign_key_checks # # that checks the behavior of this variable # # # # Reference: http://dev.mysql.com/doc/refman/5.1/en/ # # server-system-variables.html # # # ############################################################################### --source include/have_innodb.inc --echo '#--------------------FN_DYNVARS_032_01-------------------------#' #################################################################### # Check if setting foreign_key_checks is changed in new connection # #################################################################### SET @@session.foreign_key_checks = 0; # con1 will be default connection from now on --echo 'connect (con1,localhost,root,,,,)' connect (con1,localhost,root,,,,); --echo 'connection con1' connection con1; SELECT @@session.foreign_key_checks; SET @@session.foreign_key_checks = 1; --echo 'connect (con2,localhost,root,,,,)' connect (con2,localhost,root,,,,); --echo 'connection con2' connection con2; SELECT @@session.foreign_key_checks; disconnect con2; --echo '#--------------------FN_DYNVARS_032_02-------------------------#' ################################################################# # Begin the functionality Testing of foreign_key_checks # ################################################################# --echo 'connection con1' connection con1; --disable_warnings DROP TABLE IF EXISTS t1,t2; --enable_warnings CREATE TABLE t1(a INT PRIMARY KEY)ENGINE = INNODB; CREATE TABLE t2(a INT PRIMARY KEY,b INT)ENGINE = INNODB; ALTER TABLE t2 ADD CONSTRAINT fk FOREIGN KEY (b) REFERENCES t1 (a); #=========================================================== --echo '---Check when foreign_key_checks is enabled---' #=========================================================== SET @@session.foreign_key_checks = 1; INSERT INTO t1 values (1),(2),(3); INSERT INTO t2 values (10,1); --Error ER_NO_REFERENCED_ROW_2 INSERT INTO t2 values (20,22); #=========================================================== --echo '---Check when foreign_key_checks is disabled---' #=========================================================== --Error ER_TRUNCATE_ILLEGAL_FK TRUNCATE t1; SET @@session.foreign_key_checks = 0; TRUNCATE t1; TRUNCATE t2; INSERT INTO t1 values (1),(2),(3); INSERT INTO t2 values (10,1); INSERT INTO t2 values (20,4); --echo 'try enabling foreign_key_checks again'; SET @@session.foreign_key_checks = 1; UPDATE t2 SET b=4 where a=20; #============================================================================== --echo 'Check when foreign_key_checks is enabled and FK constraint is re-created' #============================================================================== SET @@session.foreign_key_checks = 0; TRUNCATE t2; TRUNCATE t1; INSERT INTO t1 values (1),(2),(3); INSERT INTO t2 values (10,1),(20,4); ALTER TABLE t2 DROP FOREIGN KEY fk; SET @@session.foreign_key_checks = 1; # Test disabled as error description is different. The resulting description has # difference in code #sql-xxx_2 where xxx is different for each run. #--Error ER_NO_REFERENCED_ROW_2 #ALTER TABLE t2 #ADD CONSTRAINT fk FOREIGN KEY (b) REFERENCES t1 (a); # delete all rows with incorrect reference DELETE FROM t2 WHERE b not in (SELECT a from t1); ALTER TABLE t2 ADD CONSTRAINT fk FOREIGN KEY (b) REFERENCES t1 (a); INSERT INTO t2 values (20,2); SELECT * from t2; --disable_warnings DROP TABLE IF EXISTS t2; DROP TABLE IF EXISTS t1; --enable_warnings ########################################################## # End of functionality Testing for foreign_key_checks # ##########################################################