qwaszx92717 opened a new issue #8528:
URL: https://github.com/apache/shardingsphere/issues/8528


   When using “in” query, and the parameters have thousands of “ID”, the query 
speed will be very slow. Use "_+partitioned "  query speed  is normal. Here are 
some configuration data and troubleshooting data.
   
   config
   
![image](https://user-images.githubusercontent.com/24630042/101450401-773e8c00-3965-11eb-996d-e9f6c58176cf.png)
   
   query sharding log
   
![image](https://user-images.githubusercontent.com/24630042/101449975-b4564e80-3964-11eb-884b-40bedcb09ab0.png)
   
   testing environment
   1.using sharding、50w data、sql:select * from table where column in 
(...)、condition have index, not shardingid. query time 15s
   2.not used sharding,ditto. query time  less 0.2s


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