From: Mr. E23 <e23@users.mediawiki.org>
Date: Sun, 18 Jan 2004 15:30:42 +0000 (+0000)
Subject: Fix to improve speed on some systems
X-Git-Tag: 1.3.0beta1~1134
X-Git-Url: http://git.cyclocoop.org/%7B%24www_url%7Dadmin/membres/fiche.php?a=commitdiff_plain;h=c6f0f3f783b4742f0363b1b64a3f116a8da39a14;p=lhc%2Fweb%2Fwiklou.git

Fix to improve speed on some systems
---

diff --git a/maintenance/rebuildlinks.inc b/maintenance/rebuildlinks.inc
index 1150cd9679..1d384691c6 100644
--- a/maintenance/rebuildlinks.inc
+++ b/maintenance/rebuildlinks.inc
@@ -27,11 +27,18 @@ function rebuildLinkTables()
 	print "Setting AUTOCOMMIT=1\n";
 	wfQuery("SET SESSION AUTOCOMMIT=1", DB_WRITE);
 
+	print "Extracting often used data from cur (may take a few minutes)\n";
+	$sql = "CREATE TEMPORARY TABLE cur_fast SELECT cur_namespace, cur_title, cur_id FROM cur";
+	wfQuery( $sql, DB_WRITE );
+	$sql = "ALTER TABLE cur_fast ADD INDEX(cur_namespace, cur_title)";
+	wfQuery( $sql, DB_WRITE );
+
 	print "Locking tables\n";
-	$sql = "LOCK TABLES cur READ, interwiki READ, user_newtalk READ, " .
+	$sql = "LOCK TABLES cur READ, cur_fast READ, interwiki READ, user_newtalk READ, " .
 		"links WRITE, brokenlinks WRITE, imagelinks WRITE";
 	wfQuery( $sql, DB_WRITE );
 
+
 	print "Deleting old data in links table.\n";
 	$sql = "DELETE FROM links";
 	wfQuery( $sql, DB_WRITE );
@@ -158,7 +165,8 @@ function rebuildLinkTables()
 				$parts[] = " (cur_namespace = " . $nt->getNamespace() . " AND " .
 					"cur_title='" . wfStrencode( $nt->getDBkey() ) . "')";
 			}
-			$sql = "SELECT cur_namespace, cur_title, cur_id FROM cur WHERE " . implode(" OR ", $parts);
+			$sql = "SELECT cur_namespace, cur_title, cur_id FROM cur_fast WHERE " . 
+				implode(" OR ", $parts);
 			$res = wfQuery( $sql, DB_WRITE );
 			while($row = wfFetchObject( $res ) ){
 				$pos = $titles_needing_curdata_pos[$row->cur_title . $row->cur_namespace];