Fix database cache expunge issues (#1489149) - added 'expires' column

1 files changed, 24 insertions, 0 deletions

diff --git a/SQL/mysql/2013061000.sql b/SQL/mysql/2013061000.sql
new file mode 100644
index 000000000..54041b340
--- /dev/null
+++ b/SQL/mysql/2013061000.sql
@@ -0,0 +1,24 @@
+ALTER TABLE `cache` ADD `expires` datetime DEFAULT NULL;
+ALTER TABLE `cache_shared` ADD `expires` datetime DEFAULT NULL;
+ALTER TABLE `cache_index` ADD `expires` datetime DEFAULT NULL;
+ALTER TABLE `cache_thread` ADD `expires` datetime DEFAULT NULL;
+ALTER TABLE `cache_messages` ADD `expires` datetime DEFAULT NULL;
+
+-- initialize expires column with created/changed date + 7days
+UPDATE `cache` SET `expires` = `created` + interval 604800 second;
+UPDATE `cache_shared` SET `expires` = `created` + interval 604800 second;
+UPDATE `cache_index` SET `expires` = `changed` + interval 604800 second;
+UPDATE `cache_thread` SET `expires` = `changed` + interval 604800 second;
+UPDATE `cache_messages` SET `expires` = `changed` + interval 604800 second;
+
+ALTER TABLE `cache` DROP INDEX `created_index`;
+ALTER TABLE `cache_shared` DROP INDEX `created_index`;
+ALTER TABLE `cache_index` DROP `changed`;
+ALTER TABLE `cache_thread` DROP `changed`;
+ALTER TABLE `cache_messages` DROP `changed`;
+
+ALTER TABLE `cache` ADD INDEX `expires_index` (`expires`);
+ALTER TABLE `cache_shared` ADD INDEX `expires_index` (`expires`);
+ALTER TABLE `cache_index` ADD INDEX `expires_index` (`expires`);
+ALTER TABLE `cache_thread` ADD INDEX `expires_index` (`expires`);
+ALTER TABLE `cache_messages` ADD INDEX `expires_index` (`expires`);