public function safeUp()
{
craft()->db->createCommand()->dropIndex('retour_redirects', 'redirectSrcUrl', true);
craft()->db->createCommand()->createIndex('retour_redirects', 'redirectSrcUrlParsed', true);
craft()->db->createCommand()->dropIndex('retour_static_redirects', 'redirectSrcUrl', true);
craft()->db->createCommand()->createIndex('retour_static_redirects', 'redirectSrcUrlParsed', true);
RetourPlugin::log("Updated Indexes for retour_redirects & retour_static_redirects", LogLevel::Info, true);
return true;
}