Quote identifiers on mysql

lib/private/db/mdb2schemamanager.php

@@ -64,7 +64,9 @@ class MDB2SchemaManager {
 			return new SQLiteMigrator($this->conn);
 		} else if ($platform instanceof OraclePlatform) {
 			return new OracleMigrator($this->conn);
-		} else if ($platform instanceof MySqlPlatform or $platform instanceof PostgreSqlPlatform) {
+		} else if ($platform instanceof MySqlPlatform) {
+			return new MySQLMigrator($this->conn);
+		} else if ($platform instanceof PostgreSqlPlatform) {
 			return new Migrator($this->conn);
 		} else {
 			return new NoCheckMigrator($this->conn);

lib/private/db/mysqlmigrator.php

@@ -0,0 +1,32 @@
+<?php
+/**
+ * Copyright (c) 2014 Robin Appelman <icewind@owncloud.com>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+namespace OC\DB;
+
+use Doctrine\DBAL\Schema\Schema;
+
+class MySQLMigrator extends Migrator {
+	/**
+	 * @param Schema $targetSchema
+	 * @param \Doctrine\DBAL\Connection $connection
+	 * @return \Doctrine\DBAL\Schema\SchemaDiff
+	 */
+	protected function getDiff(Schema $targetSchema, \Doctrine\DBAL\Connection $connection) {
+		$schemaDiff = parent::getDiff($targetSchema, $connection);
+
+		// identifiers need to be quoted for mysql
+		foreach ($schemaDiff->changedTables as $tableDiff) {
+			$tableDiff->name = $this->connection->quoteIdentifier($tableDiff->name);
+			foreach ($tableDiff->changedColumns as $column) {
+				$column->oldColumnName = $this->connection->quoteIdentifier($column->oldColumnName);
+			}
+		}
+
+		return $schemaDiff;
+	}
+}