From db0cbf024806bda7c923911d54765f60a583551b Mon Sep 17 00:00:00 2001
From: Yannick Warnier <yannick.warnier@beeznest.com>
Date: Thu, 17 May 2007 22:36:04 +0200
Subject: [PATCH] [svn r12433] Now creates indexes for lp_* tables as it proves
 to be a bottleneck on heavy-load servers

---
 main/inc/lib/add_course.lib.inc.php | 34 +++++++++++++++++++++++++++--
 1 file changed, 32 insertions(+), 2 deletions(-)

diff --git a/main/inc/lib/add_course.lib.inc.php b/main/inc/lib/add_course.lib.inc.php
index 879147a216..14f3524a0a 100644
--- a/main/inc/lib/add_course.lib.inc.php
+++ b/main/inc/lib/add_course.lib.inc.php
@@ -87,7 +87,7 @@ function define_course_keys($wantedCode, $prefix4all = "", $prefix4baseName = ""
 
 	$course_table = Database :: get_main_table(TABLE_MAIN_COURSE);
 
-	$wantedCode = strtr($wantedCode, "ÀÁÂÃÄÅÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝßàáâãäåæçèéêëìíîïðñòóôõöøùúûüýÿ", "AAAAAACEEEEIIIIDNOOOOOOUUUUYsaaaaaaaceeeeiiiionoooooouuuuyy");
+	$wantedCode = strtr($wantedCode, "�����������������������������������������������������������", "AAAAAACEEEEIIIIDNOOOOOOUUUUYsaaaaaaaceeeeiiiionoooooouuuuyy");
 
 	$wantedCode = ereg_replace("[^A-Z0-9]", "", strtoupper($wantedCode));
 
@@ -929,7 +929,17 @@ function update_Db_course($courseDbName)
 	{
 		error_log($sql,0);
 	}
-
+	$sql = "ALTER TABLE `$TABLELPVIEW` ADD INDEX (lp_id) ";
+	if(!api_sql_query($sql))
+	{
+		error_log($sql,0);
+	}
+	$sql = "ALTER TABLE `$TABLELPVIEW` ADD INDEX (user_id) ";
+	if(!api_sql_query($sql))
+	{
+		error_log($sql,0);
+	}
+	
 	$sql = "CREATE TABLE IF NOT EXISTS `$TABLELPITEM` (" .
 		"id				int	unsigned	primary	key auto_increment," .	//unique ID from MySQL
 		"lp_id			int unsigned	not null," .	//lp_id from 'lp'
@@ -952,6 +962,11 @@ function update_Db_course($courseDbName)
 	{
 		error_log($sql,0);
 	}
+	$sql = "ALTER TABLE `$TABLELPITEM` ADD INDEX (lp_id)";
+	if(!api_sql_query($sql))
+	{
+		error_log($sql,0);
+	}
 
 	$sql = "CREATE TABLE IF NOT EXISTS `$TABLELPITEMVIEW` (" .
 		"id				bigint	unsigned	primary key auto_increment," . //unique ID
@@ -968,6 +983,16 @@ function update_Db_course($courseDbName)
 	{
 		error_log($sql,0);
 	}
+	$sql = "ALTER TABLE `$TABLELPITEMVIEW` ADD INDEX (lp_item_id) ";
+	if(!api_sql_query($sql))
+	{
+		error_log($sql,0);
+	}
+	$sql = "ALTER TABLE `$TABLELPITEMVIEW` ADD INDEX (lp_view_id) ";
+	if(!api_sql_query($sql))
+	{
+		error_log($sql,0);
+	}
 
 	$sql = "CREATE TABLE IF NOT EXISTS `$TABLELPIVINTERACTION`(" .
 		"id				bigint	unsigned 		primary key auto_increment," .
@@ -986,6 +1011,11 @@ function update_Db_course($courseDbName)
 	{
 		error_log($sql,0);
 	}
+	$sql = "ALTER TABLE `$TABLELPIVINTERACTION` ADD INDEX (lp_iv_id) ";
+	if(!api_sql_query($sql))
+	{
+		error_log($sql,0);
+	}
 
 	/*
 	-----------------------------------------------------------