--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SQL/sqlite/2013061000.sql	Thu Jan 04 15:50:29 2018 -0500
@@ -0,0 +1,48 @@
+DROP TABLE cache_index;
+DROP TABLE cache_thread;
+DROP TABLE cache_messages;
+
+ALTER TABLE cache ADD expires datetime DEFAULT NULL;
+DROP INDEX ix_cache_created;
+
+ALTER TABLE cache_shared ADD expires datetime DEFAULT NULL;
+DROP INDEX ix_cache_shared_created;
+
+UPDATE cache SET expires = datetime(created, '+604800 seconds');
+UPDATE cache_shared SET expires = datetime(created, '+604800 seconds');
+
+CREATE INDEX ix_cache_expires ON cache(expires);
+CREATE INDEX ix_cache_shared_expires ON cache_shared(expires);
+
+CREATE TABLE cache_index (
+    user_id integer NOT NULL,
+    mailbox varchar(255) NOT NULL,
+    expires datetime DEFAULT NULL,
+    valid smallint NOT NULL DEFAULT '0',
+    data text NOT NULL,
+    PRIMARY KEY (user_id, mailbox)
+);
+
+CREATE INDEX ix_cache_index_expires ON cache_index (expires);
+
+CREATE TABLE cache_thread (
+    user_id integer NOT NULL,
+    mailbox varchar(255) NOT NULL,
+    expires datetime DEFAULT NULL,
+    data text NOT NULL,
+    PRIMARY KEY (user_id, mailbox)
+);
+
+CREATE INDEX ix_cache_thread_expires ON cache_thread (expires);
+
+CREATE TABLE cache_messages (
+    user_id integer NOT NULL,
+    mailbox varchar(255) NOT NULL,
+    uid integer NOT NULL,
+    expires datetime DEFAULT NULL,
+    data text NOT NULL,
+    flags integer NOT NULL DEFAULT '0',
+    PRIMARY KEY (user_id, mailbox, uid)
+);
+
+CREATE INDEX ix_cache_messages_expires ON cache_messages (expires);