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This repository was archived by the owner on Aug 15, 2020. It is now read-only.
目前我是5亿数据用shard-jdbc做的分库分表查询，执行全表路由查询时间为2分钟左右,但是我在数据库执行单条sql语句查询时间为1s左右返回，问下框架做select count(id) from table时，拆分的sql语句是并行执行的吗?有办法可以优化下查询速度?我修改了shard-jdbc工作线程查询速度也没有影响
Question
目前我是5亿数据用shard-jdbc做的分库分表查询，执行全表路由查询时间为2分钟左右,但是我在数据库执行单条sql语句查询时间为1s左右返回，问下框架做select count(id) from table时，拆分的sql语句是并行执行的吗?有办法可以优化下查询速度?我修改了shard-jdbc工作线程查询速度也没有影响