From c63227e2b6142f4364b25192b38872fc91399360 Mon Sep 17 00:00:00 2001
From: Mark Story <mark@mark-story.com>
Date: Wed, 1 Jul 2015 23:07:53 -0400
Subject: [PATCH] Restrict constraint reflection to be on the same schema.

Only collect constraint data for matching database names.

Refs #6918
---
 src/Database/Schema/MysqlSchema.php | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/Database/Schema/MysqlSchema.php b/src/Database/Schema/MysqlSchema.php
index da3d301c680..aad36f8bf39 100644
--- a/src/Database/Schema/MysqlSchema.php
+++ b/src/Database/Schema/MysqlSchema.php
@@ -222,8 +222,11 @@ public function describeForeignKeySql($tableName, $config)
     {
         $sql = 'SELECT * FROM information_schema.key_column_usage AS kcu
             INNER JOIN information_schema.referential_constraints AS rc
-            ON (kcu.CONSTRAINT_NAME = rc.CONSTRAINT_NAME)
-            WHERE kcu.TABLE_SCHEMA = ? AND kcu.TABLE_NAME = ? and rc.TABLE_NAME = ?';
+            ON (
+                kcu.CONSTRAINT_NAME = rc.CONSTRAINT_NAME
+                AND kcu.CONSTRAINT_SCHEMA = rc.CONSTRAINT_SCHEMA
+            )
+            WHERE kcu.TABLE_SCHEMA = ? AND kcu.TABLE_NAME = ? AND rc.TABLE_NAME = ?';
 
         return [$sql, [$config['database'], $tableName, $tableName]];
     }