From 1af5980b35700f9aba9192a19c4137534370bb25 Mon Sep 17 00:00:00 2001
From: Alexander Makarov <sam@rmcreative.ru>
Date: Tue, 16 Feb 2016 13:45:59 +0300
Subject: [PATCH] Removed unused use statement, replaced preg_split with
 explode

---
 framework/db/mssql/QueryBuilder.php | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/framework/db/mssql/QueryBuilder.php b/framework/db/mssql/QueryBuilder.php
index ce377bd..7642660 100644
--- a/framework/db/mssql/QueryBuilder.php
+++ b/framework/db/mssql/QueryBuilder.php
@@ -9,7 +9,6 @@ namespace yii\db\mssql;
 
 use yii\base\InvalidParamException;
 use yii\base\NotSupportedException;
-use yii\db\Query;
 
 /**
  * QueryBuilder is the query builder for MS SQL Server databases (version 2008 and above).
@@ -216,7 +215,7 @@ class QueryBuilder extends \yii\db\QueryBuilder
     {
         if ($this->_oldMssql === null) {
             $pdo = $this->db->getSlavePdo();
-            $version = preg_split("/\./", $pdo->getAttribute(\PDO::ATTR_SERVER_VERSION));
+            $version = explode('.', $pdo->getAttribute(\PDO::ATTR_SERVER_VERSION));
             $this->_oldMssql = $version[0] < 11;
         }
         return $this->_oldMssql;