ment = "
			SELECT
				{$this->get_sql_clause( 'select', 'filtered' )}
			FROM
				{$this->get_sql_clause( 'from', 'filtered' )}
				{$join}
			WHERE
				1=1
				{$where}
		";

		if ( ! empty( $group_by ) ) {
			$statement .= "
				GROUP BY
					{$group_by}
			";
			if ( ! empty( $having ) ) {
				$statement .= "
					HAVING
						1=1
						{$having}
				";
			}
		}

		if ( ! empty( $order_by ) ) {
			$statement .= "
				ORDER BY
					{$order_by}
			";
		}

		return $statement . $this->get_sql_clause( 'limit', 'filtered' );
	}

	/**
	 * Reinitialize the clause array.
	 */
	public function clear_all_clauses() {
		$this->sql_clauses = array(
			'select'     => array(),
			'from'       => array(),
			'left_join'  => array(),
			'join'       => array(),
			'right_join' => array(),
			'where'      => array(),
			'where_time' => array(),
			'group_by'   => array(),
			'having'     => array(),
			'limit'      => array(),
			'order_by'   => array(),
		);
	}
}