Merge pull request #19 from Pandos/dev

Key update to prevent possible slow query from a large session table -- when doing session writing or garbage collection.

core/app/Upgrade.php

@@ -95,3 +95,12 @@ function upgrade_step_3()
 {
 	return wedb::drop_table('{db_prefix}log_boards');
 }
+
+// 1.0-alpha-1, July 2014. Adding index to sessions to prevent a possible slow query.
+function upgrade_step_4()
+{
+	$request = wesql::query('
+	ALTER TABLE
+		{db_prefix}sessions
+	ADD KEY last_update (last_update)');
+}

index.php

@@ -12,7 +12,7 @@
 	return;
 
 define('WEDGE_VERSION', '1.0-beta');
-define('WEDGE', 3); // Internal snapshot number.
+define('WEDGE', 4); // Internal snapshot number.
 
 // Get everything started up...
 if (version_compare(PHP_VERSION, '5.3') < 0)

install/install.sql

@@ -2068,7 +2068,8 @@ CREATE TABLE {$db_prefix}sessions (
 	session_id char(32) NOT NULL,
 	last_update int(10) unsigned NOT NULL,
 	data text NOT NULL,
-	PRIMARY KEY (session_id)
+	PRIMARY KEY (session_id),
+	KEY last_update (last_update)
 ) ENGINE=MyISAM;
 
 #