[DBAL-298] Fix foreign table names not being quoted correctly.

lib/Doctrine/DBAL/Platforms/AbstractPlatform.php

@@ -2004,7 +2004,7 @@ abstract class AbstractPlatform
 
         $sql .= implode(', ', $foreignKey->getLocalColumns())
               . ') REFERENCES '
-              . $foreignKey->getForeignTableName() . ' ('
+              . $foreignKey->getQuotedForeignTableName($this) . ' ('
               . implode(', ', $foreignKey->getForeignColumns()) . ')';
 
         return $sql;

lib/Doctrine/DBAL/Schema/ForeignKeyConstraint.php

@@ -22,6 +22,7 @@
 namespace Doctrine\DBAL\Schema;
 
 use Doctrine\DBAL\Schema\Visitor\Visitor;
+use Doctrine\DBAL\Platforms\AbstractPlatform;
 
 class ForeignKeyConstraint extends AbstractAsset implements Constraint
 {
@@ -109,6 +110,24 @@ class ForeignKeyConstraint extends AbstractAsset implements Constraint
         return $this->_foreignTableName;
     }
 
+    /**
+     * Get the quoted representation of this asset but only if it was defined with one. Otherwise
+     * return the plain unquoted value as inserted.
+     *
+     * @param AbstractPlatform $platform
+     * @return string
+     */
+    public function getQuotedForeignTableName(AbstractPlatform $platform)
+    {
+        $keywords = $platform->getReservedKeywordsList();
+        $parts = explode(".", $this->getForeignTableName());
+        foreach ($parts AS $k => $v) {
+            $parts[$k] = ($this->_quoted || $keywords->isKeyword($v)) ? $platform->quoteIdentifier($v) : $v;
+        }
+
+        return implode(".", $parts);
+    }
+
     /**
      * @return array
      */