From 2ea46aa1131065125b45f2b3818a86d952a491a5 Mon Sep 17 00:00:00 2001
From: William Desportes <williamdes@wdes.fr>
Date: Fri, 27 Aug 2021 22:32:56 +0200
Subject: [PATCH] Ref #16906 - Return an error message if the pma storage db
 could not be selected

Signed-off-by: William Desportes <williamdes@wdes.fr>
---
 libraries/classes/Relation.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/libraries/classes/Relation.php b/libraries/classes/Relation.php
index f0d052f90d..f478897dbc 100644
--- a/libraries/classes/Relation.php
+++ b/libraries/classes/Relation.php
@@ -2088,7 +2088,10 @@ class Relation
                 if ($create) {
                     if ($createQueries == null) { // first create
                         $createQueries = $this->getDefaultPmaTableNames();
-                        $this->dbi->selectDb($db);
+                        if (! $this->dbi->selectDb($db)) {
+                            $GLOBALS['message'] = $this->dbi->getError();
+                            return;
+                        }
                     }
                     $this->dbi->tryQuery($createQueries[$table]);