帮我优化以下sql select s.* from ifare.structred_rule s right join ( select MAX(r.VERSION) vers, r.status, r.tbl_no, r.live_from, r.data_type, r. source from ifare.structred_rule r where (r.status in ('8', '')) group by r.status, r.tbl_no, r.live_from, r.data_type, r. source) tp on s.version = tp.vers and s.tbl_no = tp.tbl_no and s.status = tp.status and s.live_from = tp.live_from and s.data_type = tp.data_type and s.SOURCE = tp.source and s.status <> '-1' where s.version ='00001' and s.remark = 'D' and s.audited_date >= '20211010' and s.audited_date <='20211011' order by s.db_date asc, s.tbl_no asc, s.version desc

首先，可以将右连接转换为内连接，因为在右连接的情况下，我们只对右表进行了聚合，而不是左表。这可能会影响查询性能。其次，可以将子查询的结果存储到临时表中，以便后续查询使用。最后，可以为联接条件创建索引以提高查询性能。

下面是优化后的SQL：

CREATE TEMPORARY TABLE tmp_structred_rule AS 
SELECT MAX(r.VERSION) AS vers, r.status, r.tbl_no, r.live_from, r.data_type, r.source 
FROM ifare.structred_rule r 
WHERE r.status IN ('8', '') 
GROUP BY r.status, r.tbl_no, r.live_from, r.data_type, r.source;

SELECT s.* 
FROM ifare.structred_rule s 
JOIN tmp_structred_rule tp 
ON s.version = tp.vers 
AND s.tbl_no = tp.tbl_no 
AND s.status = tp.status 
AND s.live_from = tp.live_from 
AND s.data_type = tp.data_type 
AND s.SOURCE = tp.source 
WHERE s.status <> '-1' 
AND s.version = '00001' 
AND s.remark = 'D' 
AND s.audited_date >= '20211010' 
AND s.audited_date <= '20211011' 
ORDER BY s.db_date ASC, s.tbl_no ASC, s.version DESC;

同时，为联接条件创建以下索引：

CREATE INDEX idx_structred_rule_version ON ifare.structred_rule (version);
CREATE INDEX idx_structred_rule_tbl_no ON ifare.structred_rule (tbl_no);
CREATE INDEX idx_structred_rule_status ON ifare.structred_rule (status);
CREATE INDEX idx_structred_rule_live_from ON ifare.structred_rule (live_from);
CREATE INDEX idx_structred_rule_data_type ON ifare.structred_rule (data_type);
CREATE INDEX idx_structred_rule_source ON ifare.structred_rule (source);

这些优化措施应该能够提高查询性能。