数据库:zhcxkj_center_strategy_amazon
查询时间:273.329
扫描行数:11883100
发送行数:16.7714
指纹SQL: select id , customer_id , marketplace_id , product_type , attr_path , title_cn , title_en , desc_cn , desc_en , json_path , type , enum_value , enum_name , editable , hidden , min_length , max_length , level , is_input , example , is_required , belong_type , update_time , example_exp , is_custom_input , version , enum_name_cn , is_schema_required FROM ? where ( update_time < replace ( ? , ? , ? ) AND update_time >= date_add ( replace ( ? , ? , ? ) , INTERVAL ? minute ) ) ;
真实SQL:select id,customer_id,marketplace_id,product_type,attr_path,title_cn,title_en,desc_cn,desc_en,json_path,type,enum_value,enum_name,editable,hidden,min_length,max_length,level,is_input,example,is_required,belong_type,update_time,example_exp,is_custom_input,version,enum_name_cn,is_schema_required from t_amazon_listing_schema_field where (update_time= date_add(replace(2025-08-05 11:51:04,%, ), INTERVAL -0 minute));
无人工修改
AISQL修改建议:优化后的SQL:
SELECT id,
customer_id,
marketplace_id,
product_type,
attr_path,
title_cn,
title_en,
desc_cn,
desc_en,
json_path,
type,
enum_value,
enum_name,
editable,
hidden,
min_length,
max_length,
level,
is_input,
example,
is_required,
belong_type,
update_time,
example_exp,
is_custom_input,
version,
enum_name_cn,
is_schema_required
FROM t_amazon_listing_schema_field
WHERE update_time < 2025-08-05 12:00:45
AND update_time >= 2025-08-05 11:51:04;
优化说明:
1. 移除了不必要的replace()函数调用,因为日期字符串中不包含%字符
2. 移除了date_add(..., INTERVAL -0 MINUTE)这种无意义的操作
3. 直接使用常量日期字符串进行比较,简化了表达式
4. 确保在update_time字段上有索引时会使用该索引
如果update_time字段没有索引,建议添加索引:
ALTER TABLE t_amazon_listing_schema_field ADD INDEX idx_update_time (update_time);
explain表:
| id | select_type | table | partitions | type | possible_keys | key | key_len | ref | rows | filtered | Extra |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | SIMPLE | t_amazon_listing_schema_field | None | ALL | None | None | None | None | 13138188 | 11.11 | Using where |
额外建议:
索引建议:
建议添加索引:ALTER TABLE t_amazon_listing_schema_field ADD INDEX idx_update_time(update_time);
【t_amazon_listing_schema_field】表 【update_time】字段,索引分析:
+--------------+--------------+---------------+---------------+
| TABLE_NAME | INDEX_NAME | COLUMN_NAME | CARDINALITY |
+==============+==============+===============+===============+
+--------------+--------------+---------------+---------------+
(2025-08-05>

