Ref #347 - Fix "Notice: Undefined index: name in sql-parser/src/Compo…

…nents/Key.php on line 206"

Signed-off-by: William Desportes <williamdes@wdes.fr>

src/Components/Key.php

@@ -203,7 +203,11 @@ public static function build($component, array $options = array())
 
         $columns = array();
         foreach ($component->columns as $column) {
-            $tmp = Context::escape($column['name']);
+            $tmp = '';
+            if (isset($column['name'])) {
+                $tmp .= Context::escape($column['name']);
+            }
+
             if (isset($column['length'])) {
                 $tmp .= '(' . $column['length'] . ')';
             }