From 54f8710556e5144841c9b11940e9a10bd71e12d7 Mon Sep 17 00:00:00 2001
From: Aaron Schulz <aaron@users.mediawiki.org>
Date: Thu, 10 Apr 2008 17:55:12 +0000
Subject: [PATCH] force index, per domas

---
 includes/Title.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/includes/Title.php b/includes/Title.php
index 673ee16180..73b7ea53fb 100644
--- a/includes/Title.php
+++ b/includes/Title.php
@@ -2852,6 +2852,7 @@ class Title {
 
 	/**
 	 * Get the number of revisions between the given revision IDs.
+	 * Used for diffs and other things that really need it.
 	 *
 	 * @param integer $old  Revision ID.
 	 * @param integer $new  Revision ID.
@@ -2863,7 +2864,8 @@ class Title {
 			'rev_page = ' . intval( $this->getArticleId() ) .
 			' AND rev_id > ' . intval( $old ) .
 			' AND rev_id < ' . intval( $new ),
-			__METHOD__ );
+			__METHOD__,
+			array( 'USE INDEX' => 'PRIMARY' ) );
 	}
 
 	/**
-- 
2.20.1