protected function getStatements()
    {
        return array(
            SqlStatementKeys::DELETE_URL_REWRITE => $this->loadStatement(SqlStatementKeys::DELETE_URL_REWRITE),
            SqlStatementKeys::DELETE_URL_REWRITE_BY_SKU => $this->loadStatement(SqlStatementKeys::DELETE_URL_REWRITE_BY_SKU),
            SqlStatementKeys::DELETE_URL_REWRITE_BY_PATH => $this->loadStatement(SqlStatementKeys::DELETE_URL_REWRITE_BY_PATH),
            SqlStatementKeys::DELETE_URL_REWRITE_BY_CATEGORY_ID => $this->loadStatement(SqlStatementKeys::DELETE_URL_REWRITE_BY_CATEGORY_ID)
        );
    }