MT#59386 address foreign key handling in 6425.up/down

* Instead of using "set foreign_key_checks=0" before
  altering voicemail_spool voicemail_users tables the
  foreign key voicemail_spool.`v_s_mailboxuser_ref` is
  dropped instead and re-created after the alter table operations
  (same lines where "set foreign_key_checks=0" and "set
  foreign_key_checks=1" were respectively.
* That addresses the changed behavior with MariaDB 10.11.6
  where "alter table" statements the change columns involved
  in a foreign key and potentially causing data loss are prohibited
  even with "set foreign_key_checks=0".
* This change is only valid for new deployments and databases
  with already applied 6425.up are not affected.

(cherry picked from commit 25257f1657)

Change-Id: I2f2a85ca9f9f7d15058f41f5d8eaaec23ec501fa

db_scripts/base/6425.down

@@ -175,7 +175,7 @@ ALTER TABLE `address` MODIFY `tag` VARCHAR(64) CHARACTER SET latin1;
 ALTER TABLE `version` DEFAULT CHARACTER SET latin1;
 ALTER TABLE `version` MODIFY `table_name` varchar(32) CHARACTER SET latin1 NOT NULL;
 
-SET FOREIGN_KEY_CHECKS=0;
+ALTER TABLE `voicemail_spool` DROP FOREIGN KEY `v_s_mailboxuser_ref`;
 
 ALTER TABLE `voicemail_users` DEFAULT CHARACTER SET latin1;
 ALTER TABLE `voicemail_users` MODIFY `customer_id` char(36) CHARACTER SET latin1 NOT NULL DEFAULT '';
@@ -211,7 +211,7 @@ ALTER TABLE `voicemail_spool` MODIFY `duration` varchar(16) CHARACTER SET latin1
 ALTER TABLE `voicemail_spool` MODIFY `mailboxuser` varchar(255) CHARACTER SET latin1 DEFAULT '';
 ALTER TABLE `voicemail_spool` MODIFY `mailboxcontext` varchar(63) CHARACTER SET latin1 DEFAULT '';
 
-SET FOREIGN_KEY_CHECKS=1;
+ALTER TABLE `voicemail_spool` ADD CONSTRAINT `v_s_mailboxuser_ref` FOREIGN KEY (`mailboxuser`) REFERENCES `voicemail_users` (`customer_id`) ON DELETE CASCADE ON UPDATE CASCADE;
 
 ALTER TABLE `fax_preferences` DEFAULT CHARACTER SET latin1;
 ALTER TABLE `fax_preferences` MODIFY `password` varchar(64) CHARACTER SET latin1 default NULL;

db_scripts/base/6425.up

@@ -175,7 +175,7 @@ ALTER TABLE `address` MODIFY `tag` VARCHAR(64) CHARACTER SET utf8;
 ALTER TABLE `version` DEFAULT CHARACTER SET utf8;
 ALTER TABLE `version` MODIFY `table_name` varchar(32) CHARACTER SET utf8 NOT NULL;
 
-SET FOREIGN_KEY_CHECKS=0;
+ALTER TABLE `voicemail_spool` DROP FOREIGN KEY `v_s_mailboxuser_ref`;
 
 ALTER TABLE `voicemail_users` DEFAULT CHARACTER SET utf8;
 ALTER TABLE `voicemail_users` MODIFY `customer_id` char(36) CHARACTER SET utf8 NOT NULL DEFAULT '';
@@ -211,7 +211,7 @@ ALTER TABLE `voicemail_spool` MODIFY `duration` varchar(16) CHARACTER SET utf8 D
 ALTER TABLE `voicemail_spool` MODIFY `mailboxuser` varchar(255) CHARACTER SET utf8 DEFAULT '';
 ALTER TABLE `voicemail_spool` MODIFY `mailboxcontext` varchar(63) CHARACTER SET utf8 DEFAULT '';
 
-SET FOREIGN_KEY_CHECKS=1;
+ALTER TABLE `voicemail_spool` ADD CONSTRAINT `v_s_mailboxuser_ref` FOREIGN KEY (`mailboxuser`) REFERENCES `voicemail_users` (`customer_id`) ON DELETE CASCADE ON UPDATE CASCADE;
 
 ALTER TABLE `fax_preferences` DEFAULT CHARACTER SET utf8;
 ALTER TABLE `fax_preferences` MODIFY `password` varchar(64) CHARACTER SET utf8 default NULL;

schema/kamailio.sql

@@ -1069,7 +1069,7 @@ INSERT INTO `dom_preferences` VALUES (27,'','0','voip.sipwise.local','play_annou
 INSERT INTO `dom_preferences` VALUES (28,'','0','voip.sipwise.local','mobile_push_enable',0,'never',NOW());
 INSERT INTO `dom_preferences` VALUES (29,'','0','voip.sipwise.local','busy_hg_member_mode',0,'ring',NOW());
 INSERT INTO `domain` VALUES (1,'voip.sipwise.local',NOW(),NULL);
-INSERT INTO `subscriber` VALUES (1,'no_such_number','voip.sipwise.local','300fe0133470abbd7fbe99ba24f85aa9','6e177569e4b9ee1d16c595f92185561f','e39aa0e7c1a9dbda4e6322fb84f6f0a4','9bcb88b6-541a-43da-8fdc-816f5557ff93','',NOW());
+INSERT INTO `subscriber` VALUES (1,'no_such_number','voip.sipwise.local','bcbf2d8dcd10d379a483244541d37d22','086dd9c520205dbfe720970a435044d8','8f9a540ede124f4c8b98c5064aec496b','9bcb88b6-541a-43da-8fdc-816f5557ff93','',NOW());
 INSERT INTO `usr_preferences` VALUES (1,'9bcb88b6-541a-43da-8fdc-816f5557ff93','no_such_number','voip.sipwise.local','cloud_pbx_hunt_policy',0,'none',NOW());
 INSERT INTO `usr_preferences` VALUES (5,'9bcb88b6-541a-43da-8fdc-816f5557ff93','no_such_number','voip.sipwise.local','emergency_location_format',0,'cirpack',NOW());
 INSERT INTO `usr_preferences` VALUES (6,'9bcb88b6-541a-43da-8fdc-816f5557ff93','no_such_number','voip.sipwise.local','play_announce_before_recording',0,'never',NOW());

schema/provisioning.sql

@@ -4476,7 +4476,7 @@ INSERT INTO `voip_sound_handles` VALUES (149,'recent_call_deleted',12,1);
 INSERT INTO `voip_sound_handles` VALUES (150,'ringback_tone',13,1);
 INSERT INTO `voip_sound_handles` VALUES (151,'aa_timeout',2,1);
 INSERT INTO `voip_sound_handles` VALUES (152,'aa_default',2,1);
-INSERT INTO `voip_subscribers` VALUES (3,'no_such_number',2,'9bcb88b6-541a-43da-8fdc-816f5557ff93','300fe0133470abbd7fbe99ba24f85aa9',0,NULL,NULL,NULL,0,0,'none',NULL,NULL,NULL,NULL,NOW(),NOW());
+INSERT INTO `voip_subscribers` VALUES (3,'no_such_number',2,'9bcb88b6-541a-43da-8fdc-816f5557ff93','bcbf2d8dcd10d379a483244541d37d22',0,NULL,NULL,NULL,0,0,'none',NULL,NULL,NULL,NULL,NOW(),NOW());
 INSERT INTO `voip_usr_preferences` VALUES (1,3,97,'none',NOW());
 INSERT INTO `voip_usr_preferences` VALUES (7,3,372,'cirpack',NOW());
 INSERT INTO `voip_usr_preferences` VALUES (8,3,305,'never',NOW());