From 67b49f27a41bfad9b9676580484c90428e236407 Mon Sep 17 00:00:00 2001
From: Andrew Nicols <andrew@nicols.co.uk>
Date: Tue, 25 Oct 2016 08:39:36 +0800
Subject: [PATCH] MDL-56516 tool_usertours: Adjust tour query for MySQL

---
 admin/tool/usertours/classes/cache.php | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/admin/tool/usertours/classes/cache.php b/admin/tool/usertours/classes/cache.php
index 6c81a0ae633..cefc7794d65 100644
--- a/admin/tool/usertours/classes/cache.php
+++ b/admin/tool/usertours/classes/cache.php
@@ -61,10 +61,8 @@ class cache {
             $sql = <<<EOF
                 SELECT t.*
                   FROM {tool_usertours_tours} t
-            INNER JOIN {tool_usertours_steps} s ON s.tourid = t.id
                  WHERE t.enabled = 1
-              GROUP BY t.id
-                HAVING COUNT(s.id) > 0
+                   AND t.id IN (SELECT s.tourid FROM {tool_usertours_steps} s GROUP BY s.tourid)
               ORDER BY t.sortorder ASC
 EOF;