mysql -- 优化之ICP(index condition pushdown)
2017-12-05 16:38
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一、为了方法说明ICP是什么、假设有如下的表和查询:
没有ICP之前:
原先在没有ICP的时候、innodb会
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create table person( id int unsigned auto_increment primary key, home_address varchar(16), first_name varchar(16), last_name varchar(16), index ix_first_name_last_name (first_name,last_name) ); select * from person where first_name like 'abc%';
没有ICP之前:
原先在没有ICP的时候、innodb会
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