Index for lotw_users

application/config/migration.php

@@ -22,7 +22,7 @@ $config['migration_enabled'] = TRUE;
 |
 */
 
-$config['migration_version'] = 141;
+$config['migration_version'] = 142;
 
 /*
 |--------------------------------------------------------------------------

application/migrations/142_alter_lotw_user_table.php

@@ -0,0 +1,16 @@
+<?php
+
+defined('BASEPATH') OR exit('No direct script access allowed');
+
+class Migration_alter_lotw_user_table extends CI_Migration {
+
+	public function up() {
+		$this->db->query("ALTER TABLE lotw_users ADD UNIQUE INDEX callsign_UNIQUE (callsign ASC)");
+		$this->db->query("ALTER TABLE lotw_users DROP INDEX callsign");
+	}
+
+	public function down(){
+		$this->db->query("ALTER TABLE lotw_users DROP INDEX callsign_UNIQUE");
+		$this->db->query("ALTER TABLE lotw_users ADD INDEX callsign (callsign)");
+	}
+}