XiaoMi / soar

SQL Optimizer And Rewriter
Apache License 2.0
8.67k stars 1.32k forks source link

散粒度很低的字段,还是建议过滤掉,不要加入索引建议吧 #155

Closed saigu closed 5 years ago

saigu commented 5 years ago

Please search the existing issues for relevant feature requests, add upvotes to pre-existing requests.

Feature Description

可以做个参数,自己配置散粒度阈值,低于多少就不要加入索引建议了

Use Case(s)

好多deleted字段建议加索引。。。,都是不太科学,加了也没用,还浪费空间