diff -u b/core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php b/core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php
--- b/core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php
+++ b/core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php
@@ -359,8 +359,10 @@
       throw new SchemaObjectExistsException(t("Cannot copy @source to @destination: table @destination already exists.", array('@source' => $source, '@destination' => $destination)));
     }
     // @TODO The server is likely going to rename indexes and constraints
-    // during the copy process, and it will not match our
-    // table_name + constraint name convention anymore. Fix this.
+    //   during the copy process, and it will not match our
+    //   table_name + constraint name convention anymore.
+    throw new \Exception('Not implemented, see https://drupal.org/node/2056133');
+    // This is how the implementation could look like:
     $info = $this->getPrefixInfo($destination);
     return $this->connection->query('CREATE TABLE `' . $info['table'] . '` (LIKE {' . $source . '} INCLUDING ALL)');
   }
diff -u b/core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php b/core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php
--- b/core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php
+++ b/core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php
@@ -282,6 +282,7 @@
     if ($this->tableExists($destination)) {
       throw new SchemaObjectExistsException(t("Cannot copy @source to @destination: table @destination already exists.", array('@source' => $source, '@destination' => $destination)));
     }
+
     $this->createTable($destination, $this->introspectSchema($source));
   }