From 09f9af472948e35b9c2c4e09bb2ad97add420480 Mon Sep 17 00:00:00 2001
From: Andrew Nicols <andrew@nicols.co.uk>
Date: Thu, 10 May 2018 16:07:25 +0800
Subject: [PATCH] MDL-62384 logstore_standard: Remove unnecessary join on
 context

---
 admin/tool/log/store/standard/classes/privacy/provider.php | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/admin/tool/log/store/standard/classes/privacy/provider.php b/admin/tool/log/store/standard/classes/privacy/provider.php
index 1994e29f5bc..2761ca26c64 100644
--- a/admin/tool/log/store/standard/classes/privacy/provider.php
+++ b/admin/tool/log/store/standard/classes/privacy/provider.php
@@ -74,10 +74,8 @@ class provider implements
      */
     public static function add_contexts_for_userid(contextlist $contextlist, $userid) {
         $sql = "
-            SELECT ctx.id
-              FROM {context} ctx
-              JOIN {logstore_standard_log} l
-                ON l.contextid = ctx.id
+            SELECT l.contextid
+              FROM {logstore_standard_log} l
              WHERE l.userid = :userid1
                 OR l.relateduserid = :userid2
                 OR l.realuserid = :userid3";