From 00d4f3c482978b3cc82e5394655d5f7ea8aba5f3 Mon Sep 17 00:00:00 2001
From: Roan Kattouw <catrope@users.mediawiki.org>
Date: Mon, 7 Jul 2008 13:08:03 +0000
Subject: [PATCH] Killing filesort in prop={links,templatelinks} when
 {pl,tl}namespace isn't set.

---
 includes/api/ApiQueryLinks.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/includes/api/ApiQueryLinks.php b/includes/api/ApiQueryLinks.php
index 69805411c4..73a2ad8a79 100644
--- a/includes/api/ApiQueryLinks.php
+++ b/includes/api/ApiQueryLinks.php
@@ -93,7 +93,8 @@ class ApiQueryLinks extends ApiQueryGeneratorBase {
 		$order = array();
 		if(count($this->getPageSet()->getGoodTitles()) != 1)
 			$order[] = "{$this->prefix}_from";
-		// pl_namespace is always constant
+		if(!isset($params['namespace']))
+			$order[] = "{$this->prefix}_namespace";
 		$order[] = "{$this->prefix}_title";
 		$this->addOption('ORDER BY', implode(", ", $order));
 		$this->addOption('USE INDEX', "{$this->prefix}_from");
-- 
2.20.1