Hope fuzzy query could support multi-device

[LIU-WEI-git]

I find the fuzzy query of IoTDB doesn't support multi device. Hope it can be supported in the future.

In my scenario, I store the value of the index as LayerName to index some fields. For example, there is a table called service_traffic. It has 4 fields: id, type, group, name. I make the value of id, type and name as part of the storage path to achieve the effect of index. Eventually the data from the same table is spread across multiple devices.

When I used like clause to fuzzy query, I got a Exception: Msg: 500: [INTERNAL_SERVER_ERROR] Exception occurred while executing "select * from root.skywalking.service_traffic.*."0".* where name like '%1%'". class org.apache.iotdb.db.qp.logical.crud.LikeOperator cannot be cast to class org.apache.iotdb.db.qp.logical.crud.BasicFunctionOperator (org.apache.iotdb.db.qp.logical.crud.LikeOperator and org.apache.iotdb.db.qp.logical.crud.BasicFunctionOperator are in unnamed module of loader 'app')

In debug mode, I found the Exception occurred on ConcatPathOptimizer. The LikeOperator cannot be cast to BasicFunctionOperator.

OS: Win10, Version: 0.12.2

[HTHou]

@ijihang Any idea about this issue?

[ijihang]

Ok,I'll implement this function right away

[HTHou]

@LIU-WEI-git The latest rel/0.12 branch fixed this issue. You can try it now.

[LIU-WEI-git]

wow~, thanks a lot. : )