Clean up sensors and related tables and add constraints

[murrant]

Remove sensors for non existent devices and delete unused sensors_to_state_indexes, state_indexes, and state_translations
Change sensors.device_id to unsigned to match devices.device_id
Add foreign keys to sensors and sensors_to_state_indexes for cascading deletes

229 rows affected. (Query took 0.2732 seconds.)

DELETE FROM `sensors_to_state_indexes` WHERE `sensors_to_state_indexes`.`sensor_id` NOT IN (SELECT DISTINCT `sensors`.`sensor_id` FROM `sensors` INNER JOIN `devices` ON `sensors`.`device_id` = `devices`.`device_id`)

384 rows affected. (Query took 0.0410 seconds.)

DELETE FROM `sensors` WHERE `sensors`.`device_id` NOT IN (SELECT `device_id` FROM `devices`)

4 rows affected. (Query took 0.1045 seconds.)

DELETE FROM `state_indexes` WHERE `state_indexes`.`state_index_id` NOT IN (SELECT `sensors_to_state_indexes`.`state_index_id` FROM `sensors_to_state_indexes`)

26 rows affected. (Query took 0.0275 seconds.)

DELETE FROM `state_translations` WHERE `state_translations`.`state_index_id` NOT IN (SELECT `state_indexes`.`state_index_id` FROM `state_indexes`)

MySQL returned an empty result set (i.e. zero rows). (Query took 1.1063 seconds.)

ALTER TABLE `sensors` CHANGE `device_id` `device_id` INT(11) UNSIGNED NOT NULL DEFAULT '0'

MySQL returned an empty result set (i.e. zero rows). (Query took 1.2088 seconds.)

ALTER TABLE `sensors` ADD CONSTRAINT `sensors_device_id_foreign` FOREIGN KEY (`device_id`) REFERENCES `devices` (`device_id`) ON DELETE CASCADE

MySQL returned an empty result set (i.e. zero rows). (Query took 1.1473 seconds.)

ALTER TABLE `sensors_to_state_indexes` ADD CONSTRAINT `sensors_to_state_indexes_sensor_id_foreign` FOREIGN KEY (`sensor_id`) REFERENCES `sensors` (`sensor_id`) ON DELETE CASCADE

[LibreNMS-CI]

Auto-Deploy finished, Test PR at http://3745.ci.librenms.org or https://3745.ci.librenms.org

[laf]

+1 from me:

mysql> DELETE FROM `sensors_to_state_indexes` WHERE `sensors_to_state_indexes`.`sensor_id` NOT IN (SELECT DISTINCT `sensors`.`sensor_id` FROM `sensors` INNER JOIN `devices` ON `sensors`.`device_id` = `devices`.`device_id`);
Query OK, 16 rows affected (0.02 sec)

mysql> DELETE FROM `sensors` WHERE `sensors`.`device_id` NOT IN (SELECT `device_id` FROM `devices`);
Query OK, 21 rows affected (0.01 sec)

mysql> DELETE FROM `state_indexes` WHERE `state_indexes`.`state_index_id` NOT IN (SELECT `sensors_to_state_indexes`.`state_index_id` FROM `sensors_to_state_indexes`);
Query OK, 0 rows affected (0.00 sec)

mysql> DELETE FROM `state_translations` WHERE `state_translations`.`state_index_id` NOT IN (SELECT `state_indexes`.`state_index_id` FROM `state_indexes`);
Query OK, 0 rows affected (0.00 sec)

mysql> ALTER TABLE `sensors` CHANGE `device_id` `device_id` INT(11) UNSIGNED NOT NULL DEFAULT '0';
Query OK, 6311 rows affected (1.63 sec)
Records: 6311  Duplicates: 0  Warnings: 0

mysql> ALTER TABLE `sensors` ADD CONSTRAINT `sensors_device_id_foreign` FOREIGN KEY (`device_id`) REFERENCES `devices` (`device_id`) ON DELETE CASCADE;
Query OK, 6311 rows affected (0.95 sec)
Records: 6311  Duplicates: 0  Warnings: 0

mysql> ALTER TABLE `sensors_to_state_indexes` ADD CONSTRAINT `sensors_to_state_indexes_sensor_id_foreign` FOREIGN KEY (`sensor_id`) REFERENCES `sensors` (`sensor_id`) ON DELETE CASCADE;
Query OK, 1750 rows affected (0.14 sec)
Records: 1750  Duplicates: 0  Warnings: 0

[LibreNMS-CI]

Auto-Deploy finished, Test PR at http://3745.ci.librenms.org or https://3745.ci.librenms.org