From 3bdc635003f1af803b3ba3d777cbf33212caefcf Mon Sep 17 00:00:00 2001
From: Vitaliy Filippov <vitalif@yourcmc.ru>
Date: Wed, 13 May 2015 11:00:14 +0000
Subject: [PATCH] Add READ COMMITTED

---
 DatabaseMysql.php | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/DatabaseMysql.php b/DatabaseMysql.php
index 87fb91f..8ae7364 100644
--- a/DatabaseMysql.php
+++ b/DatabaseMysql.php
@@ -4,7 +4,7 @@
  * Very stable interface for MySQL - object-oriented at last :)
  * Select builder is inspired by MediaWiki's one.
  * Also usable for querying SphinxQL.
- * Version: 2015-05-12
+ * Version: 2015-05-13
  * (c) Vitaliy Filippov, 2012-2015
  */
 
@@ -127,6 +127,11 @@ class DatabaseMysql implements Database
         {
             $this->transactions = array();
             $this->link->set_charset('utf8');
+            if ($this->username || $this->dbname) // skip for Sphinx
+            {
+                // READ COMMITTED is more consistent for average usage
+                $this->link->query('SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED');
+            }
             if ($this->autoBegin)
             {
                 $this->begin();
@@ -178,9 +183,15 @@ class DatabaseMysql implements Database
         $this->queryCount++;
         if ($this->queryLogFile)
         {
-            $this->loggedQueries .= date("[Y-m-d H:i:s] ").$sql."\n";
+            $begin = explode(' ', microtime(), 2);
         }
         $r = $this->link->query($sql, $fetchMode);
+        if ($this->queryLogFile)
+        {
+            $end = explode(' ', microtime(), 2);
+            $this->loggedQueries .= date("[Y-m-d H:i:s.").substr($end[0], 2, 6)."] [".
+                sprintf("%.05fs", $end[1]-$begin[1]+$end[0]-$begin[0])."] $sql\n";
+        }
         if (!$r)
         {
             if ($this->link->errno == 2006 && $this->reconnect && !$this->transactions)